例子
<?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;
?>