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php判断是否连接上网络的方法实例详解

Jun 13, 2016 am 10:29 AM
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本文主要介绍PHP判断是否连接上网络的方法,通过php判断能否打开百度页面来判断是否连接上网络的功能,需要的朋友可以参考下

本文实例讲述了PHP判断是否连接上网络的方法。分享给大家供大家参考。具体实现方法如下:

首先写个函数

function varify_url($url){ 
$check = @fopen($url,"r"); 
if($check){ 
 $status = true; 
}else{ 
 $status = false; 
} 
return $status; 
}
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接着在需要的地方直接调用即可

$url = "http://www.baidu.com"; 
if(varify_url($url)){ 
 echo "<p>Congratulation ! Your URL <a href=$url>$url</a> : is <b>valid </b></p>"; 
}else{ 
 echo "<p>Error ! Your URL : <a href=$url>$url</a> is <b>invalid </b></p>"; 
}
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