call stored procedure from php to mysql

Desde PHP

function callStoreProcedure($sql)
{
$coneccion = mysqli_connect("host", "user", "pass", "db");
if (!$coneccion) {
die('No se pudo conectar: ' . mysql_error());
}

$_sql = utf8_decode($sql);
$result = mysqli_query($coneccion, "call myStoreProcudure(\"".$_sql."\")");
$row    = mysqli_fetch_assoc($result);
mysqli_close($coneccion);

return $row;

}