PHP脚本实现检测骨干网络线路状态

<?php
    //  以下针对本单位的网络，涉及到的IP地址都是骨干网交换机的管理IP;
echo "<font color=\"red\"><blink><b>校园骨干网</b></blink></font><br>";
$count = 1;
$psize = 65;
$deadline = 1;
echo "   线路测试，请等待...\n<br><br>";
flush();
exec("ping -c $count -s $psize -w $deadline '192.168.255.252'", $list);
if (substr($list[1],0,2)=="73")
print "南校区线路正常"."\n";
else print "<font color='FF0000'> 南校区线路异常----</font>"."\n";
echo "<p>";
unset($list);
exec("ping -c $count -s $psize -w $deadline '192.168.255.241'", $list);
if (substr($list[1],0,2)=="73")
print "北校区线路正常"."\n";
else print "<font color='FF0000'>北校区线路异常----</font>"."\n";
echo "<p>";
unset($list);
exec("ping -c $count -s $psize -w $deadline '192.168.255.233'", $list);
if (substr($list[1],0,2)=="73")
print "市区--大学城线路正常"."\n";
else print "<font color='FF0000'>市区--大学城线路异常----</font>"."\n";
echo "<p>";
unset($list);
exec("ping -c $count -s $psize -w $deadline '192.168.255.226'", $list);
//print $list[6];
if (substr($list[1],0,2)=="73")
print "1#教学楼线路正常"."\n";
else print "<font color='FF0000'>1#教学楼线路异常----</font>"."\n";
echo "<p>";
unset($list);
exec("ping -c $count -s $psize -w $deadline '192.168.255.218'", $list);
if (substr($list[1],0,2)=="73")
print "4#教学楼线路正常"."\n";
else print "<font color='FF0000'>4#教学楼线路异常----</font>"."\n";
echo "<p>";
unset($list);
exec("ping -c $count -s $psize -w $deadline '192.168.255.210'", $list);
if (substr($list[1],0,2)=="73")
print "5#教学楼线路正常"."\n";
else print "<font color='FF0000'>5#教学楼线路异常----</font>"."\n";
?>
</pre>
<?
flush();
sleep(3);
?>