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php怎么判断远程文件是否存在

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2016-06-13 11:50:21876browse

php怎样判断远程文件是否存在
php 有什么方法  来判断远程文件是否存在
------解决方案--------------------

$url = 'http://www.example.com';<br /><br />print_r(get_headers($url));<br /><br />print_r(get_headers($url, 1));


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

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