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    14
    Glen at ITIStudios dot ca
    12 years ago
    <?php
    /**
    *  XML to Associative Array Class
    *
    *  Usage:
    *     $domObj = new xmlToArrayParser($xml);
    *     $domArr = $domObj->array;
    *    
    *     if($domObj->parse_error) echo $domObj->get_xml_error();
    *     else print_r($domArr);
    *
    *     On Success:
    *     eg. $domArr['top']['element2']['attrib']['var2'] => val2
    *
    *     On Error:
    *     eg. Error Code [76] "Mismatched tag", at char 58 on line 3
    */

    /**
    * Convert an xml file or string to an associative array (including the tag attributes):
    * $domObj = new xmlToArrayParser($xml);
    * $elemVal = $domObj->array['element']
    * Or:  $domArr=$domObj->array;  $elemVal = $domArr['element'].
    *
    * @version  2.0
    * @param Str $xml file/string.
    */
    class xmlToArrayParser {
          /** The array created by the parser can be assigned to any variable: $anyVarArr = $domObj->array.*/
          public  $array = array();
      public      $parse_error = false;
      private     $parser;
      private     $pointer;
     
          /** Constructor: $domObj = new xmlToArrayParser($xml); */
          public function __construct($xml) {
            $this->pointer =& $this->array;
            $this->parser = xml_parser_create("UTF-8");
            xml_set_object($this->parser, $this);
            xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false);
            xml_set_element_handler($this->parser, "tag_open", "tag_close");
            xml_set_character_data_handler($this->parser, "cdata");
            $this->parse_error = xml_parse($this->parser, ltrim($xml))? false : true;
      }
     
          /** Free the parser. */
          public function __destruct() { xml_parser_free($this->parser);}

          /** Get the xml error if an an error in the xml file occured during parsing. */
          public function get_xml_error() {
        if(    $this->parse_error) {
              $errCode = xml_get_error_code ($this->parser);
              $thisError =  "Error Code [". $errCode ."] \"<strong style='color:red;'>" . xml_error_string($errCode)."</strong>\",
                                at char "    .xml_get_current_column_number($this->parser) . "
                                on line "    .xml_get_current_line_number($this->parser)."";
        }else     $thisError = $this->parse_error;
        return     $thisError;
      }
     
      private function     tag_open($parser, $tag, $attributes) {
            $this->convert_to_array($tag, 'attrib');
            $idx=$this->convert_to_array($tag, 'cdata');
        if(isset(    $idx)) {
              $this->pointer[$tag][$idx] = Array('@idx' => $idx,'@parent' => &$this->pointer);
              $this->pointer =& $this->pointer[$tag][$idx];
        }else {
              $this->pointer[$tag] = Array('@parent' => &$this->pointer);
              $this->pointer =& $this->pointer[$tag];
        }
        if (!empty(    $attributes)) { $this->pointer['attrib'] = $attributes; }
      }

          /** Adds the current elements content to the current pointer[cdata] array. */
          private function cdata($parser, $cdata) { $this->pointer['cdata'] = trim($cdata); }

      private function     tag_close($parser, $tag) {
            $current = & $this->pointer;
        if(isset(    $this->pointer['@idx'])) {unset($current['@idx']);}
       
            $this->pointer = & $this->pointer['@parent'];
        unset(    $current['@parent']);
       
        if(isset(    $current['cdata']) && count($current) == 1) { $current = $current['cdata'];}
        else if(empty(    $current['cdata'])) {unset($current['cdata']);}
      }
     
          /** Converts a single element item into array(element[0]) if a second element of the same name is encountered. */
          private function convert_to_array($tag, $item) {
        if(isset(    $this->pointer[$tag][$item])) {
              $content = $this->pointer[$tag];
              $this->pointer[$tag] = array((0) => $content);
              $idx = 1;
        }else if (isset(    $this->pointer[$tag])) {
              $idx = count($this->pointer[$tag]);
          if(!isset(    $this->pointer[$tag][0])) {
            foreach (    $this->pointer[$tag] as $key => $value) {
                unset(    $this->pointer[$tag][$key]);
                    $this->pointer[$tag][0][$key] = $value;
        }}}else     $idx = null;
        return     $idx;
      }
    }
    ?>

    This is supplimental information for the "class xmlToArrayParser".
    This is a fully functional error free, extensively tested php class unlike the posts that follow it.

    Key phrase: Fully functional, fully tested, error free XML To Array parser.

    <?php
    /**
    * class xmlToArrayParser
    *
      Notes:
      1. 'attrib' and 'cdata' are keys added to the array when the element contains both attributes and content.
      2. Ignores content that is not in between it's own set of tags.
      3. Don't know if it recognizes processing instructions nor do I know about processing instructions.
         <\?some_pi some_attr="some_value"?>  This is the same as a document declaration.
      4. Empty elements are not included unless they have attributes.
      5. Version 2.0, Dec. 2, 2011, added xml error reporting.
     
      Usage:
        $domObj = new xmlToArrayParser($xml);
        $elemVal = $domObj->array['element']
        Or assign the entire array to its own variable:
        $domArr = $domObj->array;
        $elemVal = $domArr['element']
     
      Example:
        $xml = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>
        <top>
          <element1>element content 1</element1>
          <element2 var2="val2" />
          <element3 var3="val3" var4="val4">element content 3</element3>
          <element3 var5="val5">element content 4</element3>
          <element3 var6="val6" />
          <element3>element content 7</element3>
        </top>';
       
        $domObj = new xmlToArrayParser($xml);
        $domArr = $domObj->array;
       
        if($domObj->parse_error) echo $domObj->get_xml_error();
        else print_r($domArr);

        On Success:
        $domArr['top']['element1'] => element content 1
        $domArr['top']['element2']['attrib']['var2'] => val2
        $domArr['top']['element3']['0']['attrib']['var3'] => val3
        $domArr['top']['element3']['0']['attrib']['var4'] => val4
        $domArr['top']['element3']['0']['cdata'] => element content 3
        $domArr['top']['element3']['1']['attrib']['var5'] => val5
        $domArr['top']['element3']['1']['cdata'] => element content 4
        $domArr['top']['element3']['2']['attrib']['var6'] => val6
        $domArr['top']['element3']['3'] => element content 7
       
        On Error:
        Error Code [76] "Mismatched tag", at char 58 on line 3
    *
    */
    ?>
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    2
    sam at cwa dot co dot nz
    24 years ago
    I've discovered some unusual behaviour in this API when ampersand entities are parsed in cdata; for some reason the parser breaks up the section around the entities, and calls the handler repeated times for each of the sections. If you don't allow for this oddity and you are trying to put the cdata into a variable, only the last part will be stored.

    You can get around this with a line like:

    $foo .= $cdata;

    If the handler is called several times from the same tag, it will append them, rather than rewriting the variable each time. If the entire cdata section is returned, it doesn't matter.

    May happen for other entities, but I haven't investigated.

    Took me a while to figure out what was happening; hope this saves someone else the trouble.
    up
    3
    Greg S
    19 years ago
    If you need utf8_encode support and configure PHP with --disable-all you will have some trouble. Unfortunately the configure options aren't completely documented. If you need utf8 functions and have everything disabled just recompile PHP with --enable-xml and you should be good to go.
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    2
    wolfon.AT-DoG.inbox.ru
    16 years ago
    Finally a simple xml => array class.
    Functioning like SimpleXML library.

    <?php
    class xml  {
        private     $parser;
        private     $pointer;
        public     $dom;
       
        public function     __construct($data) {
                $this->pointer =& $this->dom;
                $this->parser = xml_parser_create();
                xml_set_object($this->parser, $this);
                xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false);
                xml_set_element_handler($this->parser, "tag_open", "tag_close");
                xml_set_character_data_handler($this->parser, "cdata");
                xml_parse($this->parser, $data);
        }
      
        private function     tag_open($parser, $tag, $attributes) {
            if (isset(    $this->pointer[$tag]['@attributes'])) {
                    $content = $this->pointer[$tag];
                    $this->pointer[$tag] = array(0 => $content);
                    $idx = 1;
            } else if (isset(    $this->pointer[$tag]))
                    $idx = count($this->pointer[$tag]);

            if (isset(    $idx)) {
                    $this->pointer[$tag][$idx] = Array(
                        '@idx' => $idx,
                        '@parent' => &$this->pointer);
                       $this->pointer =& $this->pointer[$tag][$idx];
            } else {
                    $this->pointer[$tag] = Array(
                        '@parent' => &$this->pointer);
                    $this->pointer =& $this->pointer[$tag];
            }
            if (!empty(    $attributes))
                    $this->pointer['@attributes'] = $attributes;
        }

        private function     cdata($parser, $cdata) {
                   $this->pointer['@data'] = $cdata;
        }

        private function     tag_close($parser, $tag) {
                $current = & $this->pointer;
            if (isset(    $this->pointer['@idx']))
                unset(    $current['@idx']);
           
                $this->pointer = & $this->pointer['@parent'];
           
              unset(    $current['@parent']);
               if (isset(    $current['@data']) && count($current) == 1)
                       $current = $current['@data'];
               else if (empty(    $current['@data'])||$current['@data']==0)
                   unset(    $current['@data']);
        }
    }
    ?>

    maybe I'll do some explanations on habr
    up
    1
    guy at bhaktiandvedanta dot com
    22 years ago
    For a simple XML parser you can use this function. It doesn't require any extensions to run.

    <?php
    // Extracts content from XML tag

    function GetElementByName ($xml, $start, $end) {

        global     $pos;
            $startpos = strpos($xml, $start);
        if (    $startpos === false) {
            return     false;
        }
            $endpos = strpos($xml, $end);
            $endpos = $endpos+strlen($end);   
            $pos = $endpos;
            $endpos = $endpos-$startpos;
            $endpos = $endpos - strlen($end);
            $tag = substr ($xml, $startpos, $endpos);
            $tag = substr ($tag, strlen($start));

        return     $tag;

    }

    // Open and read xml file. You can replace this with your xml data.

    $file = "data.xml";
    $pos = 0;
    $Nodes = array();

    if (!(    $fp = fopen($file, "r"))) {
        die(    "could not open XML input");
    }
    while (    $getline = fread($fp, 4096)) {
            $data = $data . $getline;
    }

    $count = 0;
    $pos = 0;

    // Goes throw XML file and creates an array of all <XML_TAG> tags.
    while ($node = GetElementByName($data, "<XML_TAG>", "</XML_TAG>")) {
            $Nodes[$count] = $node;
            $count++;
            $data = substr($data, $pos);
    }

    // Gets infomation from tag siblings.
    for ($i=0; $i<$count; $i++) {
    $code = GetElementByName($Nodes[$i], "<Code>", "</Code>");
    $desc = GetElementByName($Nodes[$i], "<Description>", "</Description>");
    $price = GetElementByName($Nodes[$i], "<BasePrice>", "</BasePrice>");
    }
    ?>

    Hope this helps! :)
    Guy Laor
    up
    2
    geoffers [at] gmail [dot] com
    17 years ago
    Time to add my attempt at a very simple script that parses XML into a structure:

    <?php

    class Simple_Parser
    {
        var     $parser;
        var     $error_code;
        var     $error_string;
        var     $current_line;
        var     $current_column;
        var     $data = array();
        var     $datas = array();
       
        function     parse($data)
        {
                $this->parser = xml_parser_create('UTF-8');
                xml_set_object($this->parser, $this);
                xml_parser_set_option($this->parser, XML_OPTION_SKIP_WHITE, 1);
                xml_set_element_handler($this->parser, 'tag_open', 'tag_close');
                xml_set_character_data_handler($this->parser, 'cdata');
            if (!    xml_parse($this->parser, $data))
            {
                    $this->data = array();
                    $this->error_code = xml_get_error_code($this->parser);
                    $this->error_string = xml_error_string($this->error_code);
                    $this->current_line = xml_get_current_line_number($this->parser);
                    $this->current_column = xml_get_current_column_number($this->parser);
            }
            else
            {
                    $this->data = $this->data['child'];
            }
                xml_parser_free($this->parser);
        }

        function     tag_open($parser, $tag, $attribs)
        {
                $this->data['child'][$tag][] = array('data' => '', 'attribs' => $attribs, 'child' => array());
                $this->datas[] =& $this->data;
                $this->data =& $this->data['child'][$tag][count($this->data['child'][$tag])-1];
        }

        function     cdata($parser, $cdata)
        {
                $this->data['data'] .= $cdata;
        }

        function     tag_close($parser, $tag)
        {
                $this->data =& $this->datas[count($this->datas)-1];
                array_pop($this->datas);
        }
    }

    $xml_parser = new Simple_Parser;
    $xml_parser->parse('<foo><bar>test</bar></foo>');

    ?>
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    2
    Glen at ITIStudios dot ca
    11 years ago
    Update: corrected isset() in convert_to_array() function
    <?php
    /**
    *  XML to Associative Array Class
    *
    *  Usage:
    *     $domObj = new xmlToArrayParser($xml);
    *     $domArr = $domObj->array;
    *   
    *     if($domObj->parse_error) echo $domObj->get_xml_error();
    *     else print_r($domArr);
    *
    *     On Success:
    *     eg. $domArr['top']['element2']['attrib']['var2'] => val2
    *
    *     On Error:
    *     eg. Error Code [76] "Mismatched tag", at char 58 on line 3
    */

    /**
    * Convert an xml file or string to an associative array (including the tag attributes):
    * $domObj = new xmlToArrayParser($xml);
    * $elemVal = $domObj->array['element']
    * Or:  $domArr=$domObj->array;  $elemVal = $domArr['element'].
    *
    * @version  2.0
    * @param Str $xml file/string.
    */
    class xmlToArrayParser {
          /** The array created by the parser can be assigned to any variable: $anyVarArr = $domObj->array.*/
          public  $array = array();
      public      $parse_error = false;
      private     $parser;
      private     $pointer;

          /** Constructor: $domObj = new xmlToArrayParser($xml); */
          public function __construct($xml) {
            $this->pointer =& $this->array;
            $this->parser = xml_parser_create("UTF-8");
            xml_set_object($this->parser, $this);
            xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false);
            xml_set_element_handler($this->parser, "tag_open", "tag_close");
            xml_set_character_data_handler($this->parser, "cdata");
            $this->parse_error = xml_parse($this->parser, ltrim($xml))? false : true;
      }

          /** Free the parser. */
          public function __destruct() { xml_parser_free($this->parser);}

          /** Get the xml error if an an error in the xml file occured during parsing. */
          public function get_xml_error() {
        if(    $this->parse_error) {
              $errCode = xml_get_error_code ($this->parser);
              $thisError =  "Error Code [". $errCode ."] \"<strong style='color:red;'>" . xml_error_string($errCode)."</strong>\",
                                at char "    .xml_get_current_column_number($this->parser) . "
                                on line "    .xml_get_current_line_number($this->parser)."";
        }else     $thisError = $this->parse_error;
        return     $thisError;
      }

      private function     tag_open($parser, $tag, $attributes) {
            $this->convert_to_array($tag, 'attrib');
            $idx=$this->convert_to_array($tag, 'cdata');
        if(isset(    $idx)) {
              $this->pointer[$tag][$idx] = Array('@idx' => $idx,'@parent' => &$this->pointer);
              $this->pointer =& $this->pointer[$tag][$idx];
        }else {
              $this->pointer[$tag] = Array('@parent' => &$this->pointer);
              $this->pointer =& $this->pointer[$tag];
        }
        if (!empty(    $attributes)) { $this->pointer['attrib'] = $attributes; }
      }

          /** Adds the current elements content to the current pointer[cdata] array. */
          private function cdata($parser, $cdata) { $this->pointer['cdata'] = trim($cdata); }

      private function     tag_close($parser, $tag) {
            $current = & $this->pointer;
        if(isset(    $this->pointer['@idx'])) {unset($current['@idx']);}
      
            $this->pointer = & $this->pointer['@parent'];
        unset(    $current['@parent']);
      
        if(isset(    $current['cdata']) && count($current) == 1) { $current = $current['cdata'];}
        else if(empty(    $current['cdata'])) {unset($current['cdata']);}
      }

          /** Converts a single element item into array(element[0]) if a second element of the same name is encountered. */
          private function convert_to_array($tag, $item) {
        if(isset(    $this->pointer[$tag]) && !is_array($this->pointer[$tag])){
              $content = $this->pointer[$tag];
              $this->pointer[$tag] = array((0) => $content);
              $idx = 1;
        }else if (isset(    $this->pointer[$tag])) {
              $idx = count($this->pointer[$tag]);
          if(!isset(    $this->pointer[$tag][0])) {
            foreach (    $this->pointer[$tag] as $key => $value) {
                unset(    $this->pointer[$tag][$key]);
                    $this->pointer[$tag][0][$key] = $value;
        }}}else     $idx = null;
        return     $idx;
      }
    }
    ?>
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    1
    demonpants at gmail dot com
    17 years ago
    I wanted to access the ISBN database, and was previously parsing the HTML string generated from their main page, that is until I discovered they have an API that returns XML.

    So, if anyone wants to get some information from the ISBN database, all you need to do is the following.

    <?php
    //Search the ISBN database for the book.
                    $url = "http://www.isbndb.com/api/books.xml? access_key=KEY&index1=isbn&value1=$_GET[ISBN]";
                    $p = xml_parser_create();
                    xml_parse_into_struct($p,file_get_contents($url),$results,$index);
                    xml_parser_free($p);

                    $title = $results[$index[TITLELONG][0]][value];
                    $author = $results[$index[AUTHORSTEXT][0]][value];
                    $publisher = $results[$index[PUBLISHERTEXT][0]][value];
    ?>

    You will need to get an access key from isbndb.com, but it takes two seconds and is free. When you get it, replace KEY in the URL with your own key. Also, my code above will search for the book that fits the ISBN number stored in the GET variable ISBN - you can search by other parameters and return more than one result, but my example is  for a simple ISBN search.
    up
    1
    Glen at ITIStudios dot ca
    11 years ago
    Update: concatenate element contents in function cdata()
    <?php
    /**
    *  XML to Associative Array Class
    *
    *  Usage:
    *     $domObj = new xmlToArrayParser($xml);
    *     $domArr = $domObj->array;
    *  
    *     if($domObj->parse_error) echo $domObj->get_xml_error();
    *     else print_r($domArr);
    *
    *     On Success:
    *     eg. $domArr['top']['element2']['attrib']['var2'] => val2
    *
    *     On Error:
    *     eg. Error Code [76] "Mismatched tag", at char 58 on line 3
    */

    /**
    * Convert an xml file or string to an associative array (including the tag attributes):
    * $domObj = new xmlToArrayParser($xml);
    * $elemVal = $domObj->array['element']
    * Or:  $domArr=$domObj->array;  $elemVal = $domArr['element'].
    *
    * @version  3.0
    * @param Str $xml file/string.
    */
    class xmlToArrayParser {
          /** The array created by the parser can be assigned to any variable: $anyVarArr = $domObj->array.*/
          public  $array = array();
      public      $parse_error = false;
      private     $parser;
      private     $pointer;

          /** Constructor: $domObj = new xmlToArrayParser($xml); */
          public function __construct($xml) {
            $this->pointer =& $this->array;
            $this->parser = xml_parser_create("UTF-8");
            xml_set_object($this->parser, $this);
            xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false);
            xml_set_element_handler($this->parser, "tag_open", "tag_close");
            xml_set_character_data_handler($this->parser, "cdata");
            $this->parse_error = xml_parse($this->parser, ltrim($xml))? false : true;
      }

          /** Free the parser. */
          public function __destruct() { xml_parser_free($this->parser);}

          /** Get the xml error if an an error in the xml file occured during parsing. */
          public function get_xml_error() {
        if(    $this->parse_error) {
              $errCode = xml_get_error_code ($this->parser);
              $thisError =  "Error Code [". $errCode ."] \"<strong style='color:red;'>" . xml_error_string($errCode)."</strong>\",
                                at char "    .xml_get_current_column_number($this->parser) . "
                                on line "    .xml_get_current_line_number($this->parser)."";
        }else     $thisError = $this->parse_error;
        return     $thisError;
      }

      private function     tag_open($parser, $tag, $attributes) {
            $this->convert_to_array($tag, 'attrib');
            $idx=$this->convert_to_array($tag, 'cdata');
        if(isset(    $idx)) {
              $this->pointer[$tag][$idx] = Array('@idx' => $idx,'@parent' => &$this->pointer);
              $this->pointer =& $this->pointer[$tag][$idx];
        }else {
              $this->pointer[$tag] = Array('@parent' => &$this->pointer);
              $this->pointer =& $this->pointer[$tag];
        }
        if (!empty(    $attributes)) { $this->pointer['attrib'] = $attributes; }
      }

          /** Adds the current elements content to the current pointer[cdata] array. */
          private function cdata($parser, $cdata){
        if (isset(    $this->pointer['cdata'])) { $this->pointer['cdata'] .= $cdata;}
        else {     $this->pointer['cdata'] = $cdata; }
      }
     
      private function     tag_close($parser, $tag) {
            $current = & $this->pointer;
        if(isset(    $this->pointer['@idx'])) {unset($current['@idx']);}
            $this->pointer = & $this->pointer['@parent'];
        unset(    $current['@parent']);
        if(isset(    $current['cdata']) && count($current) == 1) { $current = $current['cdata'];}
        else if(empty(    $current['cdata'])) {unset($current['cdata']);}
      }

          /** Converts a single element item into array(element[0]) if a second element of the same name is encountered. */
          private function convert_to_array($tag, $item) {
        if(isset(    $this->pointer[$tag]) && !is_array($this->pointer[$tag])){
              $content = $this->pointer[$tag];
              $this->pointer[$tag] = array((0) => $content);
              $idx = 1;
        }else if (isset(    $this->pointer[$tag])) {
              $idx = count($this->pointer[$tag]);
          if(!isset(    $this->pointer[$tag][0])) {
            foreach (    $this->pointer[$tag] as $key => $value) {
                unset(    $this->pointer[$tag][$key]);
                    $this->pointer[$tag][0][$key] = $value;
        }}}else     $idx = null;
        return     $idx;
      }
    }
    ?>
    up
    1
    biuro at dso dot biz dot pl
    2 years ago
    A class proposition that can handle very large XML files

    use
    <?php
    $domObj     = new BigXMLToArray($fileData, true);
    ?>

    <?php
    class BigXMLToArray
    {
        public     $array;

        public function     __construct($xml, $getRoot = false) {
                $use_errors = libxml_use_internal_errors(true);
                $xmlData = simplexml_load_string($xml);
            if (    false === $xmlData) {
                    $message = "Failed loading XML\r\n";

                foreach(    libxml_get_errors() as $error) {
                        $message = "\t" . $error->message . "\r\n";
                }
                    // Do something about this error message , e.g.
                // DsoMultiImporterLog::setError(['message' => $message, 'xml' => $xml], 'GLOBAL', __METHOD__);
                } else {
                    $this->array = $this->xml2array($xmlData, $getRoot);
            }
                libxml_clear_errors();
                libxml_use_internal_errors($use_errors);
        }

        private function     getAttributesList($xmlObject, $out = [])
        {
            if (    count($xmlObject) > 1) {
                foreach (    $xmlObject as $index => $node) {
                    if (    is_object($node)) {
                            $out[$index] = $this->getAttributesList($xmlObject);
                    } else {
                            $out[$index] = $node;
                    }
                }
            } else {
                foreach (    $xmlObject as $index => $node) {
                    if (    is_object($node)) {
                            $out = $this->getAttributesList($xmlObject);
                    } else {
                            $out = $node;
                    }
                }
            }

            return     $out;
        }

        private function     xml2array($xmlObject, $isRoot = false, $out = [])
        {
            if (    $isRoot) {
                    $out[$xmlObject->getName()] = $this->xml2array($xmlObject, false);
            } elseif (    is_array($xmlObject) || (is_object($xmlObject) && $xmlObject->count() > 0)) {
                foreach (    $xmlObject->children() as $index => $node) {
                        $tmp = [];
                    if (    is_object($node)) {
                        foreach(    $node->attributes() as $a => $b) {
                            if (    is_object($b) ||is_array($b)) {
                                    $tmp['attrib'][$a] = $this->getAttributesList((array)$b);
                            } else {
                                    $tmp['attrib'][$a] = $b;
                            }
                        }
                    }

                    if (empty(    $tmp['attrib'])) {
                            $tmp = $this->xml2array($node, false);
                    } else {
                            $tmp['value'] = $this->xml2array($node, false);
                    }

                    if (!empty(    $out[$index])) {
                        if (    is_string($out[$index])
                            ||     is_numeric($out[$index])
                            || (    is_array($out[$index]) && $out[$index] !== array_values($out[$index]))
                        ) {
                                $out[$index] = [$out[$index]];
                        }

                            $out[$index][] = $tmp;
                    } else {
                            $out[$index] = $tmp;
                    }
                }
            }
            else{
                    $out = json_decode($xmlObject);

                if (    $out === null and !empty((string) $xmlObject)) {
                        $out = (string) $xmlObject;
                }
            }
            return     $out;
        }
    }
    ?>
    up
    1
    filip dot rydlo at gmail dot com
    7 years ago
    // Fix for xmlToArrayParser  .......... hope this helps somebody. :-)

    // FIXED the "MULTIPLE-CALLS to callback for one string" issue of 'cdata' in  xmlToArrayParser written by:
    // Glen at ITIStudios dot ca  (2012)

      private function cdata($parser, $cdata) {
        if(isset($this->pointer['cdata'])) {      // This FIXes the issue with "INCOMPLETE STRINGS" containing html-entities
          $this->pointer['cdata'] .= $cdata;
        } else {
          $this->pointer['cdata'] = $cdata;
        }
      }
    up
    1
    compu_global_hyper_mega_net_2 at yahoo dot com
    20 years ago
    The documentation regarding white space was never complete I think.

    The XML_OPTION_SKIP_WHITE doesn't appear to do anything.  I want to preserve the newlines in a cdata section.  Setting XML_OPTION_SKIP_WHITE to 0 or false doesn't appear to help.  My character_data_handler is getting called once for each line.  This obviously should be reflected in the documentation as well.  When/how often does the handler get called exactly?  Having to build separate test cases is very time consuming.

    Inserting newlines myself in my cdata handler is no good either.  For non actual CDATA sections that cause my handler to get called, long lines are split up in multiple calls.  My handler would not be able to tell the difference whether or not the subsequent calls would be due to the fact that the data is coming from the next line or the fact that some internal buffer is long enough for it to 'flush' out and call the handler.
    This behaviour also needs to be properly documented.
    up
    -1
    anrdaemon at freemail dot ru
    8 years ago
    You must not, never ever use utf8_encode() and utf8_decode().
    If you need multibyte conversion utility, use iconv() instead. At the very least, you will get a notification, if your string can not be converted.
    utf8_* crap, like other crap of this nature, is ONLY SUPPORTING ONE CONVERSION. ISO-8859-1 <=> UTF-8.
    up
    -1
    jon at gettys dot org
    22 years ago
    [Editor's note: see also xml_parse_into_struct().]

    Very simple routine to convert an XML file into a PHP structure. $obj->xml contains the resulting PHP structure. I would be interested if someone could suggest a cleaner method than the evals I am using.

    <?php
    $filename     = 'sample.xml';
    $obj->tree = '$obj->xml';
    $obj->xml = '';

    function     startElement($parser, $name, $attrs) {
        global     $obj;
       
            // If var already defined, make array
            eval('$test=isset('.$obj->tree.'->'.$name.');');
        if (    $test) {
          eval(    '$tmp='.$obj->tree.'->'.$name.';');
          eval(    '$arr=is_array('.$obj->tree.'->'.$name.');');
          if (!    $arr) {
            eval(    'unset('.$obj->tree.'->'.$name.');');
            eval(    $obj->tree.'->'.$name.'[0]=$tmp;');
                $cnt = 1;
          }
          else {
            eval(    '$cnt=count('.$obj->tree.'->'.$name.');');
          }
         
              $obj->tree .= '->'.$name."[$cnt]";
        }
        else {
              $obj->tree .= '->'.$name;
        }
        if (    count($attrs)) {
            eval(    $obj->tree.'->attr=$attrs;');
        }
    }

    function     endElement($parser, $name) {
        global     $obj;
            // Strip off last ->
            for($a=strlen($obj->tree);$a>0;$a--) {
            if (    substr($obj->tree, $a, 2) == '->') {
                    $obj->tree = substr($obj->tree, 0, $a);
                break;
            }
        }
    }

    function     characterData($parser, $data) {
        global     $obj;

        eval(    $obj->tree.'->data=\''.$data.'\';');
    }

    $xml_parser = xml_parser_create();
    xml_set_element_handler($xml_parser, "startElement", "endElement");
    xml_set_character_data_handler($xml_parser, "characterData");
    if (!(    $fp = fopen($filename, "r"))) {
        die(    "could not open XML input");
    }

    while (    $data = fread($fp, 4096)) {
        if (!    xml_parse($xml_parser, $data, feof($fp))) {
            die(    sprintf("XML error: %s at line %d",
                            xml_error_string(xml_get_error_code($xml_parser)),
                            xml_get_current_line_number($xml_parser)));
        }
    }
    xml_parser_free($xml_parser);
    print_r($obj->xml);
    return     0;

    ?>
    up
    -1
    hans dot schneider at bbdo-interone dot de
    22 years ago
    I had to TRIM the data when I passed one large String containig a wellformed XML-File to xml_parse. The String was read by CURL, which aparently put a BLANK at the end of the String. This BLANK produced a "XML not wellformed"-Error in xml_parse!
    up
    -1
    geoff at spacevs dot com
    17 years ago
    Reading xml into a class:

    <?PHP
                class XmlData {}
                $elements = array();
                $elements[] =& new XmlData();
            function     startElement($parser, $name, $attrs) {
                    global     $elements;
                        $element =& new XMLData();
                        $elements[count($elements)-1]->$name =& $element;
                        $elements[] =& $element;
            }
            function     endElement($parser, $name) {
                    global     $elements;
                        array_pop($elements);
            }
            function     characterData($parser, $data) {
                    global     $elements;
                        $elements[count($elements)-1]->data = $data;
            }
                $xml_parser     = xml_parser_create();
                xml_set_element_handler($xml_parser, "startElement", "endElement");
                xml_set_character_data_handler($xml_parser, "characterData");
                xml_parse($xml_parser, $xml, true);
                xml_parser_free($xml_parser);
                $request =& array_pop($elements);

            echo     $request->LOGIN->USER->data;
    ?>
    up
    -1
    Didier: dlvb ** free * fr
    17 years ago
    Hi !

    After parsing the XML and modifying it, I just add a method to rebuild the XML form the internal structure (xmlp->document).
    The method xmlp->toXML writes into xmlp->XML attributes. Then, you just have to output it.
    I hope it helps.

    <?php
    class XMLParser {

    var     $parser;
    var     $filePath;
    var     $document;
    var     $currTag;
    var     $tagStack;
    var     $XML;
    var     $_tag_to_close = false;
    var     $TAG_ATTRIBUT = 'attr';
    var     $TAG_DATA = 'data';

    function     XMLParser($path) {
            $this->parser = xml_parser_create();
            $this->filePath = $path;
            $this->document = array();
            $this->currTag =& $this->document;
            $this->tagStack = array();
            $this->XML = "";
    }

    function     parse() {
            xml_set_object($this->parser, $this);
            xml_set_character_data_handler($this->parser, 'dataHandler');
            xml_set_element_handler($this->parser, 'startHandler', 'endHandler');

       if(!(    $fp = fopen($this->filePath, "r"))) {
           die(    "Cannot open XML data file: $this->filePath");
           return     false;
         }

        while(    $data = fread($fp, 4096)) {
            if(!    xml_parse($this->parser, $data, feof($fp))) {
                die(    sprintf("XML error: %s at line %d",
                        xml_error_string(xml_get_error_code($this->parser)),
                     xml_get_current_line_number($this->parser)));
          }
        }

            fclose($fp);
            xml_parser_free($this->parser);

        return     true;
    }

    function     startHandler($parser, $name, $attribs) {
         if(!isset(    $this->currTag[$name]))
                  $this->currTag[$name] = array();

             $newTag = array();
         if(!empty(    $attribs))
                  $newTag[$this->TAG_ATTRIBUT] = $attribs;
             array_push($this->currTag[$name], $newTag);

             $t =& $this->currTag[$name];
             $this->currTag =& $t[count($t)-1];
             array_push($this->tagStack, $name);
    }

    function     dataHandler($parser, $data) {
            $data = trim($data);

        if(!empty(    $data)) {
          if(isset(    $this->currTag[$this->TAG_DATA]))
                    $this->currTag[$this->TAG_DATA] .= $data;
          else
                    $this->currTag[$this->TAG_DATA] = $data;
        }
    }

    function     endHandler($parser, $name) {
             $this->currTag =& $this->document;
             array_pop($this->tagStack);

         for(    $i = 0; $i < count($this->tagStack); $i++) {
                  $t =& $this->currTag[$this->tagStack[$i]];
                  $this->currTag =& $t[count($t)-1];
         }
    }

    function     clearOutput () {
            $this->XML = "";
    }

    function     openTag ($tag) {
            $this->XML.="<".strtolower ($tag);
            $this->_tag_to_close = true;
    }

    function     closeTag () {
        if (    $this->_tag_to_close) {
                $this->XML.=">";
                $this->_tag_to_close = false;
        }
    }

    function     closingTag ($tag) {
            $this->XML.="</".strtolower ($tag).">";
    }

    function     output_attributes ($contenu_fils) {
        foreach (    $contenu_fils[$this->TAG_ATTRIBUT] as $nomAttribut => $valeur) {
                $this->XML.= " ".strtolower($nomAttribut)."=\"".$valeur."\"";
        }
    }

    function     addData ($texte) {
    // to be completed
            $ca  = array ("é", "è", "ê", "à");
            $par = array ("&eacute;", "&egrave;", "&ecirc;", "agrave;");
        return     htmlspecialchars(str_replace ($ca, $par, $texte), ENT_NOQUOTES);
    }

    function     toXML ($tags="") {
        if (    $tags=="") {
                $tags = $this->document;
              $this->clearOutput ();
        }

        foreach (    $tags as $tag => $contenu) {
                $this->process ($tag, $contenu);
        }
    }

    function     process ($tag, $contenu) {
             // Pour tous les TAGs
            foreach ($contenu as $indice => $contenu_fils) {
                 $this->openTag ($tag);

                 // Pour tous les fils (non attribut et non data)
                 foreach ($contenu_fils as $tagFils => $fils) {
                 switch (    $tagFils) {
                     case     $this->TAG_ATTRIBUT:
                                 $this->output_attributes ($contenu_fils);
                                $this->closeTag ();
                             break;
                     case     $this->TAG_DATA:
                                $this->closeTag ();
                                 $this->XML.= $this->addData ($contenu_fils [$this->TAG_DATA]);
                             break;
                     default:
                                 $this->closeTag ();
                                 $this->process ($tagFils, $fils);
                             break;
                 }
             }

                $this->closingTag ($tag);
        }
    }

    }
    ?>
    up
    -1
    odders
    20 years ago
    I wrote a simple xml parser mainly to deal with rss version 2. I found lots of examples on the net, but they were all masive and bloated and hard to manipulate.

    Output is sent to an array, which holds arrays containg data for each item.

    Obviously, you will have to make modifications to the code to suit your needs, but there isnt a lot of code there, so that shouldnt be a problem.

    <?php

       $currentElements     = array();
           $newsArray = array();

           readXml("./news.xml");

       echo(    "<pre>");
           print_r($newsArray);
       echo(    "</pre>");

           // Reads XML file into formatted html
           function readXML($xmlFile)
       {

              $xmlParser = xml_parser_create();

              xml_parser_set_option($xmlParser, XML_OPTION_CASE_FOLDING, false);
              xml_set_element_handler($xmlParser, startElement, endElement);
              xml_set_character_data_handler($xmlParser, characterData);

              $fp = fopen($xmlFile, "r");

          while(    $data = fread($fp, filesize($xmlFile))){
                 xml_parse($xmlParser, $data, feof($fp));}

              xml_parser_free($xmlParser);

       }

           // Sets the current XML element, and pushes itself onto the element hierarchy
           function startElement($parser, $name, $attrs)
       {

          global     $currentElements, $itemCount;

              array_push($currentElements, $name);

          if(    $name == "item"){$itemCount += 1;}

       }

           // Prints XML data; finds highlights and links
           function characterData($parser, $data)
       {

          global     $currentElements, $newsArray, $itemCount;

              $currentCount = count($currentElements);
              $parentElement = $currentElements[$currentCount-2];
              $thisElement = $currentElements[$currentCount-1];

          if(    $parentElement == "item"){
                 $newsArray[$itemCount-1][$thisElement] = $data;}
          else{
             switch(    $name){
                case     "title":
                   break;
                case     "link":
                   break;
                case     "description":
                   break;
                case     "language":
                   break;
                case     "item":
                   break;}}

       }

           // If the XML element has ended, it is poped off the hierarchy
           function endElement($parser, $name)
       {

          global     $currentElements;

              $currentCount = count($currentElements);
          if(    $currentElements[$currentCount-1] == $name){
                 array_pop($currentElements);}

       }

    ?>
    up
    -1
    software at serv-a-com dot com
    21 years ago
    use:

    <?php
    while ($data = str_replace("\n","",fread($fp, 4096))){
    // ...
    }
    ?>

    instead of:

    <?php
    while ($data = fread($fp, 4096)) {
          // ...
    }
    ?>

    [UPDATE 17-FEB-2003: This post] resulted in some of the visitors e-mailg me on the carriage return stripping issue with questions. I'll try to make the following mumble as brief and easy to understand as possible.

    1. Overview of the 4096 fragmentation issue
    As you know the following freads the file 4096 bytes at a time (that is 4KB) this is perhaps ok for testing expat and figuring out how things work, but it it rather dangerous in the production environment. Data may not be fully understandable due to fread fragmentation and improperly formatted due to numerous sources(formats) of data contained within (i.e. end of line delimited CDATA).

    <?php
    while ($data = fread($fp, 4096)) {
      if (!    xml_parse($xml_parser, $data, feof($fp))) {
            // ...
          }
    }
    ?>

    Sometimes to save time one may want to load it all up into a one big variable and leave all the worries to expat. I think anything under 500 KB is ok (as long as nobody knows about it). Some may argue that larger variables are acceptable or even necessary because of the magic that take place while parsing using xml_parse. Our XML parser(expat) works and can be successfully implemented only when we know what type of XML data we are dealing with, it's average size and structure of general layout and data contained within tags. For example if the tags are followed by a line delimiter like a new line we can read it with fgets in and with minimal effort make sure that no data will be sent to the function that does not end with a end tag. But this require a fair knowledge of the file's preference for storing XML data and tags (and a bit of code between reading data and xml_parse'ing it).
    It will save you a headache.

    2. Pre Parser Strings and New Line Delimited Data
    One important thing to note at this point is that the xml_parse function requires a string variable. You can manipulate the content of any string variable easily as we all know.

    A better approach to removing newlines than:

    <?php
    while ($data = fread($fp, 4096)) {
    $data = preg_replace("/\n|\r/","",$data); //flarp
    if (!xml_parse($xml_parser, $data, feof($fp))) {...
    ?>

    Above works across all 3 line-delimited text files  (\n, \r, \r\n). But this could potentially (or will most likely) damage or scramble data contained in for example CDATA areas. As far as I am concerned end of line characters should not be used _within_ XML tags. What seems to be the ultimate solution is to pre-parse the loaded data this would require checking the position within the XML document and adding or subtracting (using a in-between fread temporary variable) data based on conditions like: "Is within tag", "Is within CDATA" etc. before fedding it to the parser. This of course opens up a new can of worms (as in parse data for the parser...). (above procedure would take place between fread and xml_parser calls this method would be compatible with the general usage examples on top of the page)

    3. The Answer to parsing arbitrary XML and Preprocessor Revisited
    You can't just feed any XML document to the parser you constructed and assuming that it will work! You have to know what kind of methods for storing data are used, for example is there a end of line delimited data in the  file ?, Are there any carriage returns in the tags etc... XML files come formatted in different ways some are just a one long string of characters with out any end of line markers others have newlines, carriage returns or both (Microsloth Windows). May or may not contain space and other whitespace between tags. For this reason it is important to what I call Normalize the data before feeding it to the parser. You can perform this with regular expressions or plain old str_replace and concatenation. In many cases this can be done to the file it self sometimes to string data on the fly( as shown in the example above). But I feel it is important to normalize the data before even calling the function to call xml_parse. If you have the ability to access all data before that call you can convert it to what you fell the data should have been in the first place and omit many surprises and expensive regular expression substitution (in a tight spot) while fread'ing the data.
    up
    -1
    dmarsh dot NO dot SPAM dot PLEASE at spscc dot ctc dot edu
    22 years ago
    Some reference code I am working on as "XML Library" of which I am folding it info an object. Notice the use of the DEFINE:

    Mainly Example 1 and parts of 2 & 3 re-written as an object:
    --- MyXMLWalk.lib.php ---
    <?php

    if (!defined("PHPXMLWalk")) {
    define("PHPXMLWalk",TRUE);

    class     XMLWalk {
    var     $p; //short for xml parser;
    var $e; //short for element stack/array

          function prl($x,$i=0) {
            ob_start();
            print_r($x);
            $buf=ob_get_contents();
            ob_end_clean();
        return     join("\n".str_repeat(" ",$i),split("\n",$buf));
      }

    function     XMLWalk() {
          $this->p = xml_parser_create();
          $this->e = array();
          xml_parser_set_option($this->p, XML_OPTION_CASE_FOLDING, true);
          xml_set_element_handler($this->p, array(&$this, "startElement"), array(&$this, "endElement"));
          xml_set_character_data_handler($this->p, array(&$this, "dataElement"));
          register_shutdown_function(array(&$this, "free")); // make a destructor
          }

      function     startElement($parser, $name, $attrs) {
        if (    count($attrs)>=1) {
              $x = $this->prl($attrs, $this->e[$parser]+6);
        } else {
              $x = "";
        }

        print     str_repeat(" ",$this->e[$parser]+0). "$name $x\n";
            $this->e[$parser]++;
            $this->e[$parser]++;
      }

      function     dataElement($parser, $data) {
        print     str_repeat(" ",$this->e[$parser]+0). htmlspecialchars($data, ENT_QUOTES) ."\n";
      }

      function     endElement($parser, $name) {
            $this->e[$parser]--;
            $this->e[$parser]--;
      }
      function     parse($data, $fp) {
        if (!    xml_parse($this->p, $data, feof($fp))) {
            die(    sprintf("XML error: %s at line %d",
                            xml_error_string(xml_get_error_code($this->p)),
                            xml_get_current_line_number($this->p)));
        }
      }

      function     free() {
            xml_parser_free($this->p);
      }

    }     // end of class

    } // end of define

    ?>

    --- end of file ---

    Calling code:
    <?php

    ...

    require(    "MyXMLWalk.lib.php");

    $file = "x.xml";

    $xme = new XMLWalk;

    if (!(    $fp = fopen($file, "r"))) {
        die(    "could not open XML input");
    }

    while (    $data = fread($fp, 4096)) {
          $xme->parse($data, $fp);
    }

    ...
    ?>
    up
    -1
    Daniel dot Rendall at btinternet dot com
    25 years ago
    When using the XML parser, make sure you're not using the magic quotes option (e.g. use set_magic_quotes_runtime(0) if it's not the compiled default), otherwise you'll get 'not well-formed' errors when dealing with tags with attributes set in them.
    up
    -2
    forquan
    18 years ago
    Here's code that will create an associative array from an xml file.  Keys are the tag data and subarrays are formed from attributes and child tags

    <?php
    $p     =& new xmlParser();
    $p->parse('/*xml file*/');
    print_r($p->output);
    ?>

    <?php
    class xmlParser{
       var     $xml_obj = null;
       var     $output = array();
       var     $attrs;

       function     xmlParser(){
               $this->xml_obj = xml_parser_create();
               xml_set_object($this->xml_obj,$this);
               xml_set_character_data_handler($this->xml_obj, 'dataHandler');
               xml_set_element_handler($this->xml_obj, "startHandler", "endHandler");
       }

       function     parse($path){
           if (!(    $fp = fopen($path, "r"))) {
               die(    "Cannot open XML data file: $path");
               return     false;
           }

           while (    $data = fread($fp, 4096)) {
               if (!    xml_parse($this->xml_obj, $data, feof($fp))) {
                   die(    sprintf("XML error: %s at line %d",
                       xml_error_string(xml_get_error_code($this->xml_obj)),
                       xml_get_current_line_number($this->xml_obj)));
                       xml_parser_free($this->xml_obj);
               }
           }

           return     true;
       }

       function     startHandler($parser, $name, $attribs){
               $_content = array();
           if(!empty(    $attribs))
                 $_content['attrs'] = $attribs;
               array_push($this->output, $_content);
       }

       function     dataHandler($parser, $data){
           if(!empty(    $data) && $data!="\n") {
                   $_output_idx = count($this->output) - 1;
                   $this->output[$_output_idx]['content'] .= $data;
           }
       }

       function     endHandler($parser, $name){
           if(    count($this->output) > 1) {
                   $_data = array_pop($this->output);
                   $_output_idx = count($this->output) - 1;
                   $add = array();
               if (    $_data['attrs'])
                        $add['attrs'] = $_data['attrs'];
               if (    $_data['child'])
                        $add['child'] = $_data['child'];
                   $this->output[$_output_idx]['child'][$_data['content']] = $add;
           }    
       }
    }
    ?>
    up
    -3
    Zvjezdan Patz
    17 years ago
    The problem I had was I needed to generate xml on the screen for users to actually see and copy to a file. 

    I'm generating the xml manually from a php file and the browser kept interpreting the xml...not very helpful. 

    This is how you get around it:

    <?php

    $file      = file_get_contents("http://example.com/xml.php?whatever=$whatever");
    print     nl2br(htmlentities($file));

    ?>

    Prints all my xml quite nicely.
    up
    -4
    v9 at fakehalo dot us
    17 years ago
    I needed this for work/personal use.  Sometimes you'll have a XML string generated as one long string and no line breaks...nusoap in the case of today/work, but there are any other number of possible things that will generate these.  Anyways, this simply takes a long XML string and returns an indented/line-breaked version of the string for display/readability.

    <?php
    function xmlIndent($str){
            $ret = "";
            $indent = 0;
            $indentInc = 3;
            $noIndent = false;
        while((    $l = strpos($str,"<",$i))!==false){
            if(    $l!=$r && $indent>0){ $ret .= "\n" . str_repeat(" ",$indent) . substr($str,$r,($l-$r)); }
                $i = $l+1;
                $r = strpos($str,">",$i)+1;
                $t = substr($str,$l,($r-$l));
            if(    strpos($t,"/")==1){
                    $indent -= $indentInc;
                    $noIndent = true;
            }
            else if((    $r-$l-strpos($t,"/"))==2 || substr($t,0,2)=="<?"){ $noIndent = true; }
            if(    $indent<0){ $indent = 0; }
            if(    $ret){ $ret .= "\n"; }
                $ret .= str_repeat(" ",$indent);
                $ret .= $t;
            if(!    $noIndent){ $indent += $indentInc; }
                $noIndent = false;
        }
            $ret .= "\n";
        return(    $ret);
    }
    ?>

    (...this was only tested for what i needed at work, could POSSIBLY need additions)
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