mysql date comparison function

index.php

<?php

static function mysql_timediff( $datefield, $date_to_compare, $tbl, $cond_field, $cond_value ) {
    $db = eZDB::instance();
    $sql = "SELECT TIMEDIFF($datefield, $date_to_compare ) FROM $tbl WHERE $cond_field = '$cond_value';";
    $rows = $db->arrayQuery( $sql );
    return $rows[0];
}

?>