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    mysqli::next_result

    mysqli_next_result

    (PHP 5, PHP 7, PHP 8)

    mysqli::next_result -- mysqli_next_result — Prépare le prochain résultat d'une requête multiple

    Description

    Style orienté objet

    mysqli::next_result(): bool

    Style procédural

    mysqli_next_result(mysqli $mysql): bool

    Prépare le prochain jeu de résultat, initialisé par un appel antérieur à mysqli_multi_query(), et qui peut être lu par mysqli_store_result() ou mysqli_use_result().

    Liste de paramètres

    mysql

    Seulement en style procédural : Un objet mysqli retourné par la fonction mysqli_connect() ou mysqli_init().

    Valeurs de retour

    Cette fonction retourne true en cas de succès ou false si une erreur survient. Retourne aussi false si la prochaine déclaration résulte en une erreur, pas comme mysqli_more_results().

    Exemples

    Voir mysqli_multi_query().

    Erreurs / Exceptions

    Si le rapport d'erreurs mysqli est activé (MYSQLI_REPORT_ERROR) et que l'opération demandée échoue, un avertissement est généré. Si, en plus, le mode est défini sur MYSQLI_REPORT_STRICT, une mysqli_sql_exception est lancée à la place.

    Voir aussi

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    User Contributed Notes 2 notes

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    3
    admin at travian-utils dot com
    15 years ago
    Stored procedures few rowset example:

    some_file.php
    <?php
    function proc() {
      global     $global;
          $db_connect_list = array('site');
          SQLinit($db_connect_list);
      if(isset(    $global['error'])){return;}
          SQL('CALL `procedure`();');
      while(    $row=mysqli_fetch_assoc($global['result'])){
            // do some
          }
          SQLnext();
      while(    $row=mysqli_fetch_assoc($global['result'])){
            // do some
          }
          SQLnext();
      while(    $row=mysqli_fetch_assoc($global['result'])){
            // do some
          }
          SQLclose($db_connect_list);
    }
    ?>

    config.php
    <?php
      $global    ['sys']['db']['site'] = array('host'=>'localhost', 'user'=>'site', 'pass'=>'');
    ?>

    engine.php
    <?php
    function SQLinit($array_list){
      global     $global;
      foreach(    $array_list as $set){
        if(!    $global['sys']['db'][$set]['connect'] = mysqli_connect(
                $global['sys']['db'][$set]['host'],
                $global['sys']['db'][$set]['user'],
                $global['sys']['db'][$set]['pass'])){
              $global['error']['code'] = 500;
              $global['error']['text'] = 'Database not avaliable';
              $w=fopen('error.log','a+');
              fwrite($w,'time: '.date('Y M d H:i:s')."\r\n");
              fwrite($w,'errno: '.mysqli_connect_errno()."\r\n");
              fwrite($w,'error: '.mysqli_connect_error()."\r\n");
              fclose($w);
          return;
        }
        if(!isset(    $global['sys']['default_connect']))
              $global['sys']['default_connect'] = $global['sys']['db'][$set]['connect'];
            SQL('SET NAMES \'utf8\' COLLATE \'utf8_unicode_ci\';', $global['sys']['db'][$set]['connect']);
            SQL('SET CHARACTER SET \'utf8\';', $global['sys']['db'][$set]['connect']);
            SQL('SET character_set_connection = \'utf8\';', $global['sys']['db'][$set]['connect']);
      }
    }
    function     mTime(){
      list(    $usec, $sec) = explode(" ", microtime());
      return ((float)    $usec+(float)$sec);
    }
    function     SQL($sql, $connect = -1){
      global     $global;
      if(    $connect === -1)$connect = $global['sys']['default_connect'];
      if(isset(    $global['error']['sql']))return;
      while (    $connect->next_result()) $connect->store_result();
          $begin=mTime();
          $global['result']=mysqli_query($connect, $sql);
          $end=mTime();
          $global['sys']['time_sql']+=$end-$begin;
          $error=mysqli_error($connect);
      if(    $error!=''){
            $global['error']['code'] = 502;
            $global['error']['text'] = 'SQL error';
            $global['error']['sql'] = true;
            $w=fopen('error.log','a+');
            fwrite($w,'time: '.date('Y M d H:i:s')."\r\n");
            fwrite($w,'errno: '.mysqli_errno($connect)."\r\n");
            fwrite($w,'error: '.$error."\r\n");
            fwrite($w,'sql: '.$sql."\r\n");
            fclose($w);
      }else{
            $w=fopen('sql.log','a+');
            fwrite($w,'time: '.date('Y M d H:i:s')."\r\n");
            fwrite($w,'sql: '.$sql."\r\n");
            fclose($w);
      }
    }

    function     SQLnext($connect = -1){
      global     $global;
      if(    $connect === -1)$connect = $global['sys']['default_connect'];
      if(isset(    $global['error']['sql']))return;
          $connect->next_result();
          $global['result'] = $connect->store_result();
    }

    function     SQLclose($array_list){
      global     $global;
      foreach(    $array_list as $set){
            mysqli_close($global['sys']['db'][$set]['connect']);
      }
    }
    ?>
    up
    0
    pawel dot barcik at gmail dot com
    16 years ago
    this function returns FALSE when you have an error in your syntax in one of your queries, so be carefull with this type of construction when tracking errors:

    <?php

    //error in the second sub query 
    $result = $db->multi_query("select * from news; seleeeeeeect id from news; update news set title='new title' where id= 12 ");

    //code inside object class
    $this->_db = new Mysqli($host, $user, $password, $database, $port, $socket);
           
    do {
            $result = $this->_db->store_result();
            $this->_resultMulti[] = $result;
            $this->_errnoMulti[] = $this->_db->errno;

        if(    is_object($result)) {
                $result->free_result();
        }
                   
    } while(    $this->_db->next_result());

    ?>

    in this construction all you have in the $this->_errnoMulti is :

    array(1) {
      [0]=>
      int(0)
    }

    which means that there are no errors if you are not checking how many queries are executed!
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