Deprecated: mysql_connect()

Question

I am getting this warning, but the program still runs correctly.

The MySQL code is showing me a message in PHP:

Deprecated: mysql_connect(): T

Answer 1

You can remove the warning by adding a '@' before the mysql_connect.

@mysql_connect('localhost','root','');

but as the warning is telling you, use mysqli or PDO since the mysql extension will be removed in the future.

Answer 2

That is because you are using PHP 5.5 or your webserver would have been upgraded to 5.5.0.

The mysql_* functions has been deprecated as of 5.5.0

Source

Answer 3

PDO class replaces these methods. Example for Mysql or MariaDB :

$BDD_SQL = new PDO('mysql:host='.BDD_SQL_SERVER.';dbname='.BDD_SQL_BASE.';charset=utf8', 
        BDD_SQL_LOGIN, BDD_SQL_PWD, 
        array(
          PDO::ATTR_EMULATE_PREPARES => false,
          PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, //launch exception if error
          PDO::ATTR_DEFAULT_FETCH_MODE=> PDO::FETCH_ASSOC
                ));

Source : PDO Class

Answer 4

If you have done your coding then

ini_set("error_reporting", E_ALL & ~E_DEPRECATED); 

is good option but if you are in beginning then definitely you should use mysqli.

Answer 5

To suppress the deprecation message for this alone (and stay informed of other deprecations in your code) you can prefix the connect with @:

<?php
$connect = @mysql_connect('localhost','root','');
mysql_select_db('dbname');
?> 

Answer 6

mysql_*, is officially deprecated as of PHP v5.5.0 and will be removed in the future.

Use mysqli_* function or pdo

Read Oracle Converting to MySQLi