(PHP 4, PHP 5)
mysql_close — Close MySQL connection
$link_identifier = NULL
] )
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.
link_identifierThe MySQL connection. If the
link identifier is not specified, the last link opened by
mysql_connect() is assumed. If no connection is found or
established, an E_WARNING level error is
generated.
Returns TRUE on success or FALSE on failure.
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
Note: Suggested alternatives
Use of this extension is discouraged. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API for more information.
Alternatives to this function include:
- mysqli_close()
- PDO: Assign the value of
NULLto the PDO object
Note:
mysql_close() will not close persistent links created by mysql_pconnect().