PDO Prepared Inserts multiple rows in single query

Question

I am currently using this type of SQL on MySQL to insert multiple rows of values in one single query:

INSERT INTO `tbl` (`key1`,`key2`) VALUES (\'r1v1\',\'r1         


        

Answer 1

You can insert multiple rows in a single query with this function:

function insertMultiple($query,$rows) {
    if (count($rows)>0) {
        $args = array_fill(0, count($rows[0]), '?');

        $params = array();
        foreach($rows as $row)
        {
            $values[] = "(".implode(',', $args).")";
            foreach($row as $value)
            {
                $params[] = $value;
            }
        }

        $query = $query." VALUES ".implode(',', $values);
        $stmt = $PDO->prepare($query);
        $stmt->execute($params);
    }
}

$row is an array of arrays of values. In your case you would call the function with

insertMultiple("INSERT INTO tbl (`key1`,`key2`)",array(array('r1v1','r1v2'),array('r2v1','r2v2')));

This has the benefit that you use prepared statements, while inserting multiple rows with a single query. Security!