# mysql_close

(PHP 4, PHP 5, PECL mysql:1.0)

mysql_close — Close MySQL connection

### Description

bool mysql_close ([ resource `$link_identifier` ] )

mysql_close() closes the non-persistent connection to the MySQL server that's associated with the specified link identifier. If `link_identifier` isn't specified, the last opened link is used.

Using mysql_close() isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution. See also freeing resources.

### Parameters

`link_identifier`

  The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If by chance no connection is found or established, an `E_WARNING` level warning is generated.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Examples

Example#1 mysql_close() example

`<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
?>`

The above example will output:

    Connected successfully

### Notes

> Note: mysql_close() will not close persistent links created by mysql_pconnect().

### See Also

- mysql_connect()
- mysql_free_result()