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Warning: mysql_query() [function.mysql-query]: Access denied for user 'ODBC'@'localhost' (using password: NO) in D:\wamp\www\Dcp\connexion.php on line 19

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in D:\wamp\www\Dcp\connexion.php on line 19

Warning: mysql_result(): supplied argument is not a valid MySQL result resource in D:\wamp\www\Dcp\connexion.php on line 22

$sql = mysql_query("SELECT COUNT(*) AS nb_pseudo FROM utilisateur WHERE uti_login='".$login."' ");
	
	// On verifie que nb_pseudo est différent de 0
	if(mysql_result($sql,0,'nb_pseudo') != 0)
	{ 

}
	else
	{
		echo 'Le pseudo n\'existe pas';
	}