connection_status()

实例

返回连接状态:

<?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;
?>


定义和用法

connection_status() 函数返回当前的连接状态。

可返回的可能值:

  • 0 - CONNECTION_NORMAL - 连接运行正常
  • 1 - CONNECTION_ABORTED - 连接由用户或网络错误终止
  • 2 - CONNECTION_TIMEOUT - 连接超时
  • 3 - CONNECTION_ABORTED & CONNECTION_TIMEOUT

语法

connection_status()

技术细节

返回值: 返回连接状态位字段。
PHP 版本: 4+
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