PHP connection_status() 函數
定義和用法
connection_status() 函數返回當前的連接狀態。
可返回的可能值：
- 0 - CONNECTION_NORMAL - 連接運行正常
- 1 - CONNECTION_ABORTED - 連接由用戶或網絡錯誤終止
- 2 - CONNECTION_TIMEOUT - 連接超時
- 3 - CONNECTION_ABORTED & CONNECTION_TIMEOUT
語法
connection_status()
實例
<?php
switch (connection_status())
{
case CONNECTION_NORMAL:
$txt = 'Connection is in a normal state';
break;
case CONNECTION_ABORTED:
$txt = 'Connection aborted';
break;
case CONNECTION_TIMEOUT:
$txt = 'Connection timed out';
break;
case (CONNECTION_ABORTED & CONNECTION_TIMEOUT):
$txt = 'Connection aborted and timed out';
break;
default:
$txt = 'Unknown';
break;
}
echo $txt;
?>
