It bears mentioning that the parse_str builtin does NOT process a query string in the CGI standard way, when it comes to duplicate fields. If multiple fields of the same name exist in a query string, every other web processing language would read them into an array, but PHP silently overwrites them:
<?php
# silently fails to handle multiple values
parse_str('foo=1&foo=2&foo=3');
# the above produces:
$foo = array('foo' => '3');
?>
Instead, PHP uses a non-standards compliant practice of including brackets in fieldnames to achieve the same effect.
<?php
# bizarre php-specific behavior
parse_str('foo[]=1&foo[]=2&foo[]=3');
# the above produces:
$foo = array('foo' => array('1', '2', '3') );
?>
This can be confusing for anyone who's used to the CGI standard, so keep it in mind. As an alternative, I use a "proper" querystring parser function:
<?php
function proper_parse_str($str) {
# result array
$arr = array();
# split on outer delimiter
$pairs = explode('&', $str);
# loop through each pair
foreach ($pairs as $i) {
# split into name and value
list($name,$value) = explode('=', $i, 2);
# if name already exists
if( isset($arr[$name]) ) {
# stick multiple values into an array
if( is_array($arr[$name]) ) {
$arr[$name][] = $value;
}
else {
$arr[$name] = array($arr[$name], $value);
}
}
# otherwise, simply stick it in a scalar
else {
$arr[$name] = $value;
}
}
# return result array
return $arr;
}
$query = proper_parse_str($_SERVER['QUERY_STRING']);
?>
parse_str
(PHP 4, PHP 5, PHP 7)
parse_str — 문자열을 변수로 해석
설명
void parse_str
( string
$str
[, array &$arr
] )
str을 URL을 통한 질의 문자열처럼 처리하여, 현재
위치에 변수를 설정합니다.
Note:
현재 QUERY_STRING을 얻기 위하여, $_SERVER['QUERY_STRING']을 사용할 수 있습니다. 또한, 외부 변수 섹션을 읽어보는 편이 좋습니다.
Note:
magic_quotes_gpc 설정이 이 함수의 출력에 영향을 줍니다. parse_str()은 PHP가 $_GET, $_POST 등의 변수를 생성할 때와 동일한 작동 방식을 사용합니다.
인수
-
str -
입력 문자열.
-
arr -
두번째 인수
arr이 존재하면, 변수들을 이 배열 원소로 저장합니다.
반환값
값을 반환하지 않습니다.
변경점
| 버전 | 설명 |
|---|---|
| 4.0.3 |
arr 인수 추가
|
예제
Example #1 parse_str() 사용하기
<?php
$str = "first=value&arr[]=foo+bar&arr[]=baz";
parse_str($str);
echo $first; // value
echo $arr[0]; // foo bar
echo $arr[1]; // baz
parse_str($str, $output);
echo $output['first']; // value
echo $output['arr'][0]; // foo bar
echo $output['arr'][1]; // baz
?>
참고
- parse_url() - URL을 해석해서 구성요소를 반환
- pathinfo() - Returns information about a file path
- http_build_query() - URL 인코드한 쿼리 문자열 생성
- get_magic_quotes_gpc() - Gets the current configuration setting of magic_quotes_gpc
- urldecode() - URL 인코드된 문자열을 디코드
add a note
User Contributed Notes 32 notes
Evan K ¶
17 years ago
shagshag ¶
12 years ago
That's not says in the description but max_input_vars directive affects this function. If there are more input variables on the string than specified by this directive, an E_WARNING is issued, and further input variables are truncated from the request.
zweibieren at yahoo dot com ¶
9 years ago
If the arr argument is provided, all its existing elements are removed.
alxcube at gmail dot com ¶
8 years ago
if you need custom arg separator, you can use this function. it returns parsed query as associative array.
<?php
/**
* Parses http query string into an array
*
* @author Alxcube <alxcube@gmail.com>
*
* @param string $queryString String to parse
* @param string $argSeparator Query arguments separator
* @param integer $decType Decoding type
* @return array
*/
function http_parse_query($queryString, $argSeparator = '&', $decType = PHP_QUERY_RFC1738) {
$result = array();
$parts = explode($argSeparator, $queryString);
foreach ($parts as $part) {
list($paramName, $paramValue) = explode('=', $part, 2);
switch ($decType) {
case PHP_QUERY_RFC3986:
$paramName = rawurldecode($paramName);
$paramValue = rawurldecode($paramValue);
break;
case PHP_QUERY_RFC1738:
default:
$paramName = urldecode($paramName);
$paramValue = urldecode($paramValue);
break;
}
if (preg_match_all('/\[([^\]]*)\]/m', $paramName, $matches)) {
$paramName = substr($paramName, 0, strpos($paramName, '['));
$keys = array_merge(array($paramName), $matches[1]);
} else {
$keys = array($paramName);
}
$target = &$result;
foreach ($keys as $index) {
if ($index === '') {
if (isset($target)) {
if (is_array($target)) {
$intKeys = array_filter(array_keys($target), 'is_int');
$index = count($intKeys) ? max($intKeys)+1 : 0;
} else {
$target = array($target);
$index = 1;
}
} else {
$target = array();
$index = 0;
}
} elseif (isset($target[$index]) && !is_array($target[$index])) {
$target[$index] = array($target[$index]);
}
$target = &$target[$index];
}
if (is_array($target)) {
$target[] = $paramValue;
} else {
$target = $paramValue;
}
}
return $result;
}
?>
kent at nospam dot ioflux dot com ¶
19 years ago
You may want to parse the query string into an array.
<?php
/**
* Similar to parse_str. Returns false if the query string or URL is empty. Because we're not parsing to
* variables but to array key entries, this function will handle ?[]=1&[]=2 "correctly."
*
* @return array Similar to the $_GET formatting that PHP does automagically.
* @param string $url A query string or URL
* @param boolean $qmark Find and strip out everything before the question mark in the string
*/
function parse_query_string($url, $qmark=true)
{
if ($qmark) {
$pos = strpos($url, "?");
if ($pos !== false) {
$url = substr($url, $pos + 1);
}
}
if (empty($url))
return false;
$tokens = explode("&", $url);
$urlVars = array();
foreach ($tokens as $token) {
$value = string_pair($token, "=", "");
if (preg_match('/^([^\[]*)(\[.*\])$/', $token, $matches)) {
parse_query_string_array($urlVars, $matches[1], $matches[2], $value);
} else {
$urlVars[urldecode($token)] = urldecode($value);
}
}
return $urlVars;
}
/**
* Utility function for parse_query_string. Given a result array, a starting key, and a set of keys formatted like "[a][b][c]"
* and the final value, updates the result array with the correct PHP array keys.
*
* @return void
* @param array $result A result array to populate from the query string
* @param string $k The starting key to populate in $result
* @param string $arrayKeys The key list to parse in the form "[][a][what%20ever]"
* @param string $value The value to place at the destination array key
*/
function parse_query_string_array(&$result, $k, $arrayKeys, $value)
{
if (!preg_match_all('/\[([^\]]*)\]/', $arrayKeys, $matches))
return $value;
if (!isset($result[$k])) {
$result[urldecode($k)] = array();
}
$temp =& $result[$k];
$last = urldecode(array_pop($matches[1]));
foreach ($matches[1] as $k) {
$k = urldecode($k);
if ($k === "") {
$temp[] = array();
$temp =& $temp[count($temp)-1];
} else if (!isset($temp[$k])) {
$temp[$k] = array();
$temp =& $temp[$k];
}
}
if ($last === "") {
$temp[] = $value;
} else {
$temp[urldecode($last)] = $value;
}
}
/**
* Breaks a string into a pair for a common parsing function.
*
* The string passed in is truncated to the left half of the string pair, if any, and the right half, if anything, is returned.
*
* An example of using this would be:
* <code>
* $path = "Account.Balance";
* $field = string_pair($path);
*
* $path is "Account"
* $field is "Balance"
*
* $path = "Account";
* $field = string_pair($path);
*
* $path is "Account"
* $field is false
* </code>
*
* @return string The "right" portion of the string is returned if the delimiter is found.
* @param string $a A string to break into a pair. The "left" portion of the string is returned here if the delimiter is found.
* @param string $delim The characters used to delimit a string pair
* @param mixed $default The value to return if the delimiter is not found in the string
* @desc
*/
function string_pair(&$a, $delim='.', $default=false)
{
$n = strpos($a, $delim);
if ($n === false)
return $default;
$result = substr($a, $n+strlen($delim));
$a = substr($a, 0, $n);
return $result;
}
?>
Olivier Mengué ¶
18 years ago
Vladimir: the function is OK in how it deals with &.
& must only be used when outputing URLs in HTML/XML data.
You should ask yourself why you have & in your URL when you give it to parse_str.
kawewong at gmail dot com ¶
3 years ago
Warning: `parse_str()` can cause "Input variables exceeded 1000" error (1000 is default php.ini setting for `max_input_vars`).
Test code.
<?php
$inputString = 'first=firstvalue';
for ($i = 1; $i <= 1100; $i++) {
$inputString .= '&arrLoopNumber[]=' . $i;
}
unset($i);
echo 'input string: <code>' . $inputString . '</code><br>' . PHP_EOL;
echo '<h5>doing <code>parse_str()</code></h5>' . PHP_EOL;
$output = [];
parse_str($inputString, $output);
// errors!!
?>
Tore Bj?lseth ¶
19 years ago
As of PHP 5, you can do the exact opposite with http_build_query(). Just remember to use the optional array output parameter.
This is a very useful combination if you want to re-use a search string url, but also slightly modify it:
Example:
<?
$url1 = "action=search&interest[]=sports&interest[]=music&sort=id";
$str = parse_str($url1, $output);
// Modifying criteria:
$output['sort'] = "interest";
$url2 = http_build_query($output);
echo "<br>url1: ".$url1;
echo "<br>url2: ".$url2;
?>
Results in:
url1: action=search&interest[]=sports&interest[]=music&sort=id
url2: action=search&interest[0]=sports&interest[1]=music&sort=interest
(Array indexes are automatically created.)
php at voodoolabs dot net ¶
17 years ago
This is probably a better solution than below. The first line makes sure the file doesn't exist then the second line directs all requests to a script. No need to output a 200 header with this method either.
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
tobsn at php dot net ¶
16 years ago
just a heads up with the example above:
?var[]=123 - the [] has to be urlencoded.
var names and var values - both have to be urlencoded!
helpmepro1 at gmail dot com ¶
16 years ago
<?
//by shimon doodkin
$url_form=url_to_form($url);
echo '<form action="'.$url_form['action'].'" method="get">';
echo $url_form['hidden'];
echo '<input name="otherfiled" type="text">';
echo '<input type="submit">';
echo '</form>';
function url_to_form($url)
{
$url=split('\?',$url,2);
$action=$url[0];
$hidden="";
if(isset($url[1]))
{
$pairs=split('&',$url[1]);
foreach($pairs as $pair)
{
$pair=split('=',$pair,2);
$name=$pair[0];
if(isset($pair[1]))
$value=$pair[1];
else
$value='';
$name=$name;
$value=htmlspecialchars($value);
if($name!='')
$hidden.='<hidden name="'.$name.'" value="'.$value.'">';
}
}
return array('action'=>$action,'hidden'=>$hidden);
}
?>
mike dot coley at inbox dot com ¶
17 years ago
Here is a little function that does the opposite of the parse_str function. It will take an array and build a query string from it.
<?php
/* Converts an array of parameters into a query string to be appended to a URL.
*
* @return string : Query string to append to a URL.
* @param array $array : Array of parameters to append to the query string.
* @param string $parent : This should be left blank (it is used internally by the function).
*/
function append_params($array, $parent='')
{
$params = array();
foreach ($array as $k => $v)
{
if (is_array($v))
$params[] = append_params($v, (empty($parent) ? urlencode($k) : $parent . '[' . urlencode($k) . ']'));
else
$params[] = (!empty($parent) ? $parent . '[' . urlencode($k) . ']' : urlencode($k)) . '=' . urlencode($v);
}
$sessid = session_id();
if (!empty($parent) || empty($sessid))
return implode('&', $params);
// Append the session ID to the query string if we have to.
$sessname = session_name();
if (ini_get('session.use_cookies'))
{
if (!ini_get('session.use_only_cookies') && (!isset($_COOKIE[$sessname]) || ($_COOKIE[$sessname] != $sessid)))
$params[] = $sessname . '=' . urlencode($sessid);
}
elseif (!ini_get('session.use_only_cookies'))
$params[] = $sessname . '=' . urlencode($sessid);
return implode('&', $params);
}
?>
Note that the function will also append the session ID to the query string if it needs to be.
PEPE_RIVAS at repixel dot net ¶
18 years ago
CONVERT ANY FORMATTED STRING INTO VARIABLES
I developed a online payment solution for credit cards using a merchant, and this merchant returns me an answer of the state of the transaction like this:
estado=1,txnid=5555444-8454445-4455554,monto=100.00
to have all that data into variables could be fine for me! so i use str_replace(), the problem is this function recognizes each group of variables with the & character... and i have comma separated values... so i replace comma with &
<?php
$string = "estado=1,txnid=5555444-8454445-4455554,monto=100.00";
$string = str_replace(",","&",$string);
parse_str($string);
echo $monto; // outputs 100.00
?>
jrgns at jadeit dot co dot za ¶
12 years ago
The array to be populated does not need to be defined before calling the function:
<?php
error_reporting(E_ALL | E_STRICT);
parse_str('var=value', $array);
?>
This will not produce a notice.
avi at amarcus dot com ¶
19 years ago
If you are trying to preserve a complex array, the function serialize might be better than http_build_query or other methods of making a query string.
StanE ¶
9 years ago
Note that the characters "." and " " (empty space) will be converted to "_". The characters "[" and "]" have special meaning: They represent arrays but there seems to be some weird behaviour, which I don't really understand:
<?php
// Note: "[" = %5B, "]" = %5D
/*
"v][=a" produces ("[" gets replaced by "_"):
Array
(
[v]_] => a
)
*/
parse_str("v%5D%5B=a", $r);
print_r($r);
/*
"v][[=a" produces (first "[" gets replaced by "_", but not all following):
Array
(
[v]_[] => a
)
*/
parse_str("v%5D%5B%5B=a", $r);
print_r($r);
?>
chris at mcfadyen dot ca ¶
16 years ago
I shouldn't've posted the original version, as it only worked with the most basic of query strings.
This function will parse an html-safe query-like url string for variables and php-like ordered and associative arrays. It places them into the global scope as parse_str does and adds minimal slashes for database insertions without the triple-slash problems that magic quotes can produce (the reason I had to write it in the first place). If you don't need the slashes, they're easy enough to remove.
<?php
function parse_query($str) {
// Separate all name-value pairs
$pairs = explode('&', $str);
foreach($pairs as $pair) {
// Pull out the names and the values
list($name, $value) = explode('=', $pair, 2);
// Decode the variable name and look for arrays
list($name, $index) = split('[][]', urldecode($name));
// Arrays
if(isset($index)) {
// Declare or add to the global array defined by $name
global $$name;
if(!isset($$name)) $$name = array();
// Associative array
if($index != "") {
${$name}[$index] = addslashes(urldecode($value));
// Ordered array
} else {
array_push($$name, addslashes(urldecode($value)));
}
// Variables
} else {
// Declare or overwrite the global variable defined by $name
global $$name;
$$name = addslashes(urldecode($value));
}
}
}
?>
chris at mcfadyen dot ca ¶
17 years ago
If you wish a version of parse_str sans magic quotes, the following will do the trick:
<?php
function parse_query($str) {
$pairs = explode('&', $str);
foreach($pairs as $pair) {
list($name, $value) = explode('=', $pair, 2);
global $$name;
$$name = $value;
}
}
?>
Roemer Lievaart ¶
2 years ago
If you need the key names preserved and don't want spaces or . or unmatched [ or ] replaced by an underscore, yet you want all the other goodies of parse_str(), like turning matched [] into array elements, you can use this code as a base for that.
<?php
const periodPlaceholder = 'QQleQPunT';
const spacePlaceholder = 'QQleQSpaTIE';
function parse_str_clean($querystr): array {
// without the converting of spaces and dots etc to underscores.
$qquerystr = str_ireplace(['.','%2E','+',' ','%20'], [periodPlaceholder,periodPlaceholder,spacePlaceholder,spacePlaceholder,spacePlaceholder], $querystr);
$arr = null ; parse_str($qquerystr, $arr);
sanitizeKeys($arr, $querystr);
return $arr;
}
function sanitizeKeys(&$arr, $querystr) {
foreach($arr as $key=>$val) {
// restore values to original
$newval = $val ;
if ( is_string($val)) {
$newval = str_replace([periodPlaceholder,spacePlaceholder], ["."," "], $val);
}
$newkey = str_replace([periodPlaceholder,spacePlaceholder], ["."," "], $key);
if ( str_contains($newkey, '_') ) {
// periode of space or [ or ] converted to _. Restore with querystring
$regex = '/&('.str_replace('_', '[ \.\[\]]', preg_quote($newkey, '/')).')=/';
$matches = null ;
if ( preg_match_all($regex, "&".urldecode($querystr), $matches) ) {
if ( count(array_unique($matches[1])) === 1 && $key != $matches[1][0] ) {
$newkey = $matches[1][0] ;
}
}
}
if ( $newkey != $key ) {
unset($arr[$key]);
$arr[$newkey] = $newval ;
} elseif( $val != $newval )
$arr[$key] = $newval;
if ( is_array($val)) {
sanitizeKeys($arr[$newkey], $querystr);
}
}
}
?>
For example:
parse_str_clean("code.1=printr%28hahaha&code 1=448044&test.mijn%5B%5D%5B2%5D=test%20Roemer&test%5Bmijn=test%202e%20Roemer");
Produces:
array(4) {
["code.1"]=>
string(13) "printr(hahaha"
["code 1"]=>
string(6) "448044"
["test.mijn"]=>
array(1) {
[0]=>
array(1) {
[2]=>
string(11) "test Roemer"
}
}
["test[mijn"]=>
string(14) "test 2e Roemer"
}
Whereas if you feed the same querystring to parse_str, you will get
array(2) {
["code_1"]=>
string(6) "448044"
["test_mijn"]=>
string(14) "test 2e Roemer"
}
twiddly ¶
6 years ago
proper_parse_str works great and I like that it doesn't replace spaces with underbars, but should urldecode $value
lenix.de ¶
17 years ago
if you would like to get a nice url scheme with php/apache and and want to handle all requests in a central php script there's a simple solution/hack:
create a .htaccess in your "basedir" where you've got your main script (in this example index.php) containing some lines like:
"ErrorDocument 404 /index.php"
inside index.php you can now do
<?php
$virtual_path = substr(
$_SERVER['REQUEST_URI'],
strlen( dirname( $_SERVER['PHP_SELF'] ) ) + 1
);
if( ($pos = strpos( $virtual_path, '?' )) !== false ) {
parse_str( substr( $virtual_path, $pos + 1 ), $_GET );
$_REQUEST = array_merge( $_REQUEST, $_GET );
$virtual_path = substr( $virtual_path, 0, $pos );
}
// some code checking for a valid location, etc...
header( 'HTTP/1.1 200 OK' );
header( 'Content-Type: text/plain' );
echo $virtual_path."\n\n";
print_r( $_REQUEST );
?>
// guido 'lenix' boehm
jgbreezer at gmail dot com ¶
17 years ago
Vladimir Kornea wrote on 8 Sep 2006:
"This function is confused by ampersands (&) being encoded as HTML entities (&)"
Well, it would be - it's not supposed to be passed html entities, that's a different encoding scheme. This function does correctly decode url encoded params for you though (with the rawurlencode rather than urlencode, ie '+' is translated to a space).
mortoray at ecircle-ag dot com ¶
19 years ago
In Kent's solution you may wish to switch "urldecode" into "rawurldecode" if you'd like to get rid of the [annoying] plus '+' converted to space ' ' translation.
anatilmizun at gmail dot com ¶
20 years ago
I wrote a pair of functions using parse_str() that will write values in an array to a textfile and vice versa, read those values from the textfile back into the array. Quite useful if you need to store lots of data but don't have access to SQL.
Save the array by calling cfg_save($filename,$array) and load it back using $array=cfg_load($filename)
<?php
$newline="?";
function cfg_load($cfgfile){
global $newline;
$setting="";
if(file_exists($cfgfile)){
$setting=fopen($cfgfile, "r");
$ookk="";
while($ook=fgets($setting)){
#strip comment
$commt=strpos($ook,"##");
if($commt!==false) $ook=substr($ook,0,$commt);
#append
if($ook!="") $ookk=$ookk."&". str_replace($newline,"\n",str_replace("&","%26",trim($ook)));
}
fclose($setting);
parse_str($ookk, $setting);
}
return $setting;
}
function cfg_save($cfgfile,$setting){
global $intArray;
$intArray="";
for($i=0;$i<2000;$i++)
$intArray[]=$i;
if(is_array($setting)){
$allkeys=array_keys($setting);
foreach($allkeys as $aKey)
cfg_recurse($setting[$aKey], $aKey, $outArray);
}
$cfgf=fopen($cfgfile,"w");
foreach($outArray as $aLine)
fputs($cfgf,stripslashes($aLine)."\r\n");
fclose($cfgf);
}
function cfg_recurse($stuffIn, $keysofar, &$toAppend){
global $intArray, $newline;
if(is_array($stuffIn)){
$allkeys=array_keys($stuffIn);
if(array_slice($intArray,0,sizeof($allkeys))==$allkeys)
$nokey=true;
else
$nokey=false;
foreach($allkeys as $aKey){
if(!$nokey) $toKey=$aKey;
cfg_recurse($stuffIn[$aKey], $keysofar."[".$toKey."]", $toAppend);
}
}else
$toAppend[]=$keysofar."=".str_replace("\n",$newline,$stuffIn);
}
?>
Note that these functions support nested arrays of unlimited levels ;)
motin at demomusic dot nu ¶
18 years ago
When you have scripts run through the command-line (like locally via cron), you might want to be able to use _GET and _POST vars. Put this in top of your scheduled task files:
<?
parse_str ($_SERVER['argv'][1], $GLOBALS['_GET']);
parse_str ($_SERVER['argv'][2], $GLOBALS['_POST']);
?>
And call your script by:
/usr/local/bin/php /path/to/script.php "id=45&action=delete" "formsubmitted=true"
Cheers!
Michal Zalewski ¶
17 years ago
Vladimir Kornea:
Try use html_entity_decode()
$str = 'first=value&arr[]=foo+bar&arr[]=baz';
parse_str(html_entity_decode($str), $output);
print_r($output);
Array
(
[first] => value
[arr] => Array
(
[0] => foo bar
[1] => baz
)
)
Will Voelcker ¶
14 years ago
If you need a function that does something similar to parse_str, but doesn't convert spaces and dots to underscores, try something like the following:
<?php
function parseQueryString($str) {
$op = array();
$pairs = explode("&", $str);
foreach ($pairs as $pair) {
list($k, $v) = array_map("urldecode", explode("=", $pair));
$op[$k] = $v;
}
return $op;
}
?>
It may need adapting to handle various edge cases.
markc ¶
11 years ago
Beware using parse_str in a function that has vars passed by reference. It seems that parse_str actually creates new vars even if vars of the same name exist. If you pass by ref vars of the same name as those in a query string being parsed new LOCAL vers will be created and you won't get any values passed back to the caller (relates to what Maikel mentioned below)
An unrealistic example (vaguely related to what I was doing when I found this out)...
function get_title($query,&$title)
{
parse_str($query);
$title=str_replace("_"," ",$title);
}
$title="foo";
$query = "context=something&title=Title_of_Something";
get_title($query,$title);
echo $title .... "foo"
Benjamin Garcia ¶
12 years ago
function like parse_str, but doesn't convert spaces and dots to underscores in $_GET AND $_POST
/**
* GET and POST input containing dots, etc.
*/
function getRealREQUEST() {
$vars = array();
$input = $_SERVER['REDIRECT_QUERY_STRING'];
if(!empty($input)){
$pairs = explode("&", $input);
foreach ($pairs as $pair) {
$nv = explode("=", $pair);
$name = urldecode($nv[0]);
$nameSanitize = preg_replace('/([^\[]*)\[.*$/','$1',$name);
$nameMatched = str_replace('.','_',$nameSanitize);
$nameMatched = str_replace(' ','_',$nameMatched);
$vars[$nameSanitize] = $_REQUEST[$nameMatched];
}
}
$input = file_get_contents("php://input");
if(!empty($input)){
$pairs = explode("&", $input);
foreach ($pairs as $pair) {
$nv = explode("=", $pair);
$name = urldecode($nv[0]);
$nameSanitize = preg_replace('/([^\[]*)\[.*$/','$1',$name);
$nameMatched = str_replace('.','_',$nameSanitize);
$nameMatched = str_replace(' ','_',$nameMatched);
$vars[$nameSanitize] = $_REQUEST[$nameMatched];
}
}
return $vars;
}
kerosuppi ¶
19 years ago
This does not work as expected.
<?php
class someclass
{
var $query_string;
function someclass($a_query_string)
{
$this->query_string = $a_query_string;
parse_str($this->query_string);
}
function output()
{
echo $this->action;
}
}
$a_class = new someclass("action=go");
$a_class->output();
?>
Use this instead.
<?php
class someclass
{
var $arr;
function someclass($a_query_string)
{
parse_str($a_query_string, $this->arr);
}
function output()
{
echo $this->arr['action'];
}
}
$a_class = new someclass("action=go");
$a_class->output();
?>
Vladimir Kornea ¶
17 years ago
parse_str() is confused by ampersands (&) being encoded as HTML entities (&). This is relevant if you're extracting your query string from an HTML page (scraping). The solution is to run the string through html_entity_decode() before running it through parse_str().
(Editors: my original comment was a caution whose solution is obvious, but it has resulted in three replies ("so what?" "as intended" and "this is how to fix it"). Please remove the previous four posts dealing with this (69529, 70234, 72745, 74818) and leave just the above summary. This issue is too trivial to warrant the number of comments it has received.)
Vladimir Kornea ¶
18 years ago
This function is confused by ampersands (&) being encoded as HTML entities (&).
$str = "first=value&arr[]=foo+bar&arr[]=baz";
parse_str($str, $output);
print_r($output);
Array
(
[first] => value
[amp;arr] => Array
(
[0] => foo bar
[1] => baz
)
)
