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php怎样判断远程文件是否存在

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Release: 2016-06-23 14:01:10
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php 有什么方法  来判断远程文件是否存在


回复讨论(解决方案)

$url = 'http://www.example.com';print_r(get_headers($url));print_r(get_headers($url, 1));
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获取远程文件HEAD信息。如果等于HTTP/1.1 200 OK 则证明文件存在

能不 能把源码给啊 我不懂 太白了

[code=php]$url = 'http://imgstatic.baidu.com/img/image/d833c895d143ad4bf450b6dd80025aafa40f06b4_%E5%89%AF%E6%9C%AC.jpg';$header = get_headers($url);var_dump($header);if(strpos($header[0],'200') !== false){//存在	echo '存在';}else{//不存在	echo '不存在';}
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[/code]

谢谢!!!!!!!!!!!!!!!!!!!!!!!!

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