PHP 中的 connection_status() 函数
programmingserver side programmingphp
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; ?>