PDO Double LIKE with Params - mysql

Question

I'm executing a query with PDO that doesn't retrieve any result via PHP but works in phpMyAdmin.
I'm sure about the connections setting as it's not the first query of my script and the other ones work fine.
Here the PHP code :
$retour = array();
$filters = array();
$filters['media_type'] = 'mytype';
$filters['libelle'] = 'sometext';
$start = 0;
$count = 9;
$sql = "SELECT * FROM ".DB_PROD_PREFIX.$this->table." t ";
$sql .= " LEFT JOIN ".DB_PROD_PREFIX.$this->table."_lang l ON t.id = l.id AND l.langue = :langue";
$sql .= " WHERE 1";
if (count($filter)>0){
foreach($filter as $field => $value){
$sql .= " AND ".$field." LIKE :".$field;
}
}
$sql .= ($order!='' ? " ORDER BY ".$order : '');
$sql .= ($count != '' ? " LIMIT ".($start != ''?':start':'0').", :count" : '');
$stmt = $db->prepare($sql);
if($start != '') $stmt->bindParam('start', $start, PDO::PARAM_INT);
if($count != '') $stmt->bindParam('count', $count, PDO::PARAM_INT);
if ($langue != '') $stmt->bindParam('langue', $langue);
if (count($filter)>0){
foreach($filter as $field => $value) {
$f = '%'.$value.'%';
$stmt->bindParam($field, $f, PDO::PARAM_STR);
}
}
echo $stmt->queryString.print_r($filter, true);
if (!$stmt->execute()) echo $stmt->errorInfo();
$res = $stmt->fetchAll();
foreach($res as $id => $row){
$retour[]=$row;
}
return $retour;
If I unset one of the 2 keys of $filter array, the query work fine.
Here is the SQL generated :
SELECT * FROM table1 t
LEFT JOIN table1_lang l ON t.id = l.id AND l.langue = :langue
WHERE 1
AND media_type LIKE :media_type
AND libelle LIKE :libelle
ORDER BY position LIMIT :start, :count
Thanks for your help!
Pierre M.

Answer 1

It doesn't work better but thanks for the tip!
Here is a piece of code managing the LIKE parameters that works :
$media_type = '%'.$filter['media_type'].'%';
$stmt->bindParam('media_type', $media_type, PDO::PARAM_STR);
$libelle = '%'.$filter['libelle'].'%';
$stmt->bindParam('libelle', $libelle, PDO::PARAM_STR);
Why doing the same with a foreach on the array doesn't work ?
if (count($filter)>0){
foreach($filter as $field => $value) {
$value = "%$value%";
$stmt->bindParam($field, $value, PDO::PARAM_STR);
}
}