mysql_ deprecated [duplicate]

Answer 1

Personally, I now use the MySQL Improved extension.

If you choose to use it in the procedural way it can be used in a very similar manner to how you're currently using the old MySQL extension.

Example (MySQL):

$result = mysql_query($query);

if (!$result) die ("Database access failed: " . mysql_error());

$rows = mysql_num_rows($result);

Example (MySQL Improved):

$result = mysqli_query($query);

if (!$result) die ("Database access failed: " . mysqli_error());

$rows = mysqli_num_rows($result);

However, I use MySQL Improved in an object orientated manner.

More information can be found here: http://www.php.net/manual/en/book.mysqli.php

Answer 2

Via php.net/mysql_num_rows manual

mysql_num_rows

This extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:

• mysqli_stmt_num_rows()
• PDOStatement::rowCount()

Answer 3

As at the offical mysql_num_rows function description mentioned you might use Mysqli or PDO_MYSQL as an alternative.

Answer 4

If you understand the idea of database abstraction libraries, use safemysql

$data = $db->getAll($query,$param1,$param2);
$rows = count($data);

If using raw API functions is more familiar to you, use PDO

$stm = $pdo->prepare($query);
$stm->execute(array($param1,$param2));
$data = $stm->fetchAll();
$rows = count($data);

Note 2 important things:

• requested data already stored in the $data variable.
• every dynamical query part (i.e. inserted variables) have to be inserted via placeholder

Answer 5

According to the PHP Manual, you should use any of the following:

• mysqli_stmt_num_rows()
• PDOStatement::rowCount()

To be clear though, neither of these is a mere substitute for mysql_num_rows(). Your code must eventually be rewritten entirely to use the MySQLi or PDO API in lieu of mysql_*().

Answer 6

don't use mysql_* functions in new code.

They are no longer maintained and are officially deprecated. See the red box? Learn about prepared statements instead, and use PDO or MySQLi -this article will help you decide which.

If you choose PDO, here is a good tutorial