mysql_get_proto_info
(PHP 4 >= 4.0.5, PHP 5)
mysql_get_proto_info — Get MySQL protocol info
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:
說明
int mysql_get_proto_info
([ resource
$link_identifier = NULL
] )Retrieves the MySQL protocol.
參數
-
link_identifier -
MySQL 的連接識別符。如果沒有指定，預設使用最後被 mysql_connect() 打開的連接。如果沒有找到該連接，函式會嘗試呼叫 mysql_connect() 建立連接並使用它。如果發生意外，沒有找到連接或無法建立連接，系統發出
E_WARNING級別的警告信息。
回傳值
Returns the MySQL protocol on success 或者在失敗時回傳 FALSE.
範例
Example #1 mysql_get_proto_info() example
<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
printf("MySQL protocol version: %s\n", mysql_get_proto_info());
?>
上例的輸出類似於：
MySQL protocol version: 10
參見
- mysql_get_client_info() - Get MySQL client info
- mysql_get_host_info() - Get MySQL host info
- mysql_get_server_info() - Get MySQL server info
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