PHP 中的 connection_status() 函数
programmingserver side programmingphp更新于 2025/10/8 9:03:00
connection_status() 函数返回连接状态。
语法
connection_status()
参数
NA
返回
connection_status() 函数返回以下可能的值。这是状态位字段 −
0 - CONNECTION_NORMAL - 连接正常运行
1 - CONNECTION_ABORTED - 连接因用户或网络错误而中止
2 - CONNECTION_TIMEOUT - 连接超时
3 - CONNECTION_ABORTED & CONNECTION_TIMEOUT
示例
以下是示例 −
<?php
switch (connection_status()) {
case CONNECTION_NORMAL:
$msg = 'Connection is in a normal state!';
break;
case CONNECTION_ABORTED:
$msg = 'Connection aborted!';
break;
case CONNECTION_TIMEOUT:
$msg = 'Connection timed out!';
break;
case (CONNECTION_ABORTED & CONNECTION_TIMEOUT):
$msg = 'Connection aborted and timed out!';
break;
default:
$msg = 'Status is unknown!';
break;
}
echo $msg;
?>

