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php判断远路文件是否存在

Jun 13, 2016 pm 01:19 PM
head headers time

php判断远程文件是否存在

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//判断远程文件是否存在

function remote_file_exists($url) {

    $executeTime = ini_get('max_execution_time');

    ini_set('max_execution_time', 0);

    $headers = @get_headers($url);

    ini_set('max_execution_time', $executeTime);

    if ($headers) {

        $head = explode(' ', $headers[0]);

        if ( !empty($head[1]) && intval($head[1]) < 400) return true;

    }

    return false;

}

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?

神奇的iteye,居然有两个empty,无语了.

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