PHP connection_status() 函數(shù)
PHP connection_status() 函數(shù)
實(shí)例
返回連接狀態(tài)：
<?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;
?>
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;
?>
運(yùn)行實(shí)例 ?
定義和用法
connection_status() 函數(shù)返回當(dāng)前的連接狀態(tài)。
可返回的可能值：
- 0 - CONNECTION_NORMAL - 連接運(yùn)行正常
- 1 - CONNECTION_ABORTED - 連接由用戶或網(wǎng)絡(luò)錯(cuò)誤終止
- 2 - CONNECTION_TIMEOUT - 連接超時(shí)
- 3 - CONNECTION_ABORTED & CONNECTION_TIMEOUT
語(yǔ)法
connection_status()
技術(shù)細(xì)節(jié)
| 返回值： | 返回連接狀態(tài)位字段。 |
|---|---|
| PHP 版本： | 4+ |
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