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php检测url是否存在的方法_php技巧

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Release： 2016-05-16 20:17:48
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本文实例讲述了php检测url是否存在的方法。分享给大家供大家参考。具体如下：

复制代码 代码如下:
function url_exists($url) {
    $hdrs = @get_headers($url);
    return is_array($hdrs) ? preg_match('/^HTTP\\/\\d+\\.\\d+\\s+2\\d\\d\\s+.*$/',$hdrs[0]) : false;
}

希望本文所述对大家的php程序设计有所帮助。

Related labels：
php url exist Detection
source：php.cn
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