mysql_close(3) [php man page]
MYSQL_CLOSE(3) 1 MYSQL_CLOSE(3) mysql_close - Close MySQL connection SYNOPSIS
Warning 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: omysqli_close(3) oPDO: Assign the value of NULL to the PDO object bool mysql_close ([resource $link_identifier = NULL]) DESCRIPTION
mysql_close(3) 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(3) isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution. See also freeing resources. o $ link_identifier -The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect(3) 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(3) 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 mysql_close(3) will not close persistent links created by mysql_pconnect(3). mysql_connect(3), mysql_free_result(3). PHP Documentation Group MYSQL_CLOSE(3)
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MYSQL_DROP_DB(3) 1 MYSQL_DROP_DB(3) mysql_drop_db - Drop (delete) a MySQL database SYNOPSIS
Warning This function was deprecated in PHP 4.3.0, and will be removed in the future, along with the entirety of the original MySQL exten- sion. 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: oExecute a DROP DATABASE query bool mysql_drop_db (string $database_name, [resource $link_identifier = NULL]) DESCRIPTION
mysql_drop_db(3) attempts to drop (remove) an entire database from the server associated with the specified link identifier. This function is deprecated, it is preferable to use mysql_query(3) to issue an sql DROP DATABASE statement instead. o $database_name - The name of the database that will be deleted. o $ link_identifier -The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect(3) is assumed. If no such link is found, it will try to create one as if mysql_connect(3) was called with no arguments. 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_drop_db(3) alternative example <?php $link = mysql_connect('localhost', 'mysql_user', 'mysql_password'); if (!$link) { die('Could not connect: ' . mysql_error()); } $sql = 'DROP DATABASE my_db'; if (mysql_query($sql, $link)) { echo "Database my_db was successfully dropped "; } else { echo 'Error dropping database: ' . mysql_error() . " "; } ?> Warning This function will not be available if the MySQL extension was built against a MySQL 4.x client library. Note For backward compatibility, the following deprecated alias may be used: mysql_dropdb(3) mysql_query(3). PHP Documentation Group MYSQL_DROP_DB(3)