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php检测url是否存在的方法_PHP

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Release: 2016-06-01 14:35:15
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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:

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。

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