PHP ½Å±¾ ²»Ö§³Ö PDO->PREPARE()Óï¾ä?

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$pdo = new PDO('mysql:yangxianxueya;host:127.0.0.1;' , 'root' , '');
$pdo->prepare('INSERT INTO category (?) VALUES (?)');
var_dump($statement);
$statement->execute(array('name','123'));
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ͬʱ˵ php ½Å±¾Öв»Ö§³Ö $pdo->prepare?

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Ö§³Ö µ«ÄãûװPDOÀ©Õ¹

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×°ÁË, ÎÒÓà prepare ('select') Óï¾ä¼Ó bindparam ¶¼ÊÇ¿ÉÒÔÔËÐеÄ, µ«ÊÇÔÚÖ¸¶¨ INSERT Óï¾ä¾Í²»ÐÐ

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//$db->prepare('SELECT * from user where id=:id or id <:id ');
//$db->bindParam(':id','2');
//$db->execute();
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function insert($table = '' , $array = array())
    {
        if(empty ($array)) return false;
        $count = count($array);
        $question = '?' . str_repeat(',?', $count - 1);
        $sql = 'INSERT INTO '.$table .' ('. $question .') VALUES ('. $question .')';
        $this->prepare($sql);
        foreach($array as $k=>$v)
        {
            $i = 1; <