Error when using charset utf-8

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0

When I use mysql_set_charset('utf8') I have this error : Warning: mysql_set_charset() expects parameter 2 to be resource, object given in D:\wamp\www\plateforme\includes\db.php on line 4

This is the code :

<?php
$db = new PDO('mysql:host=localhost;dbname=plateforme', 'root', '');
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING); 
mysql_set_charset('utf8',$db);
?>

asked 54 secs ago

hous

60