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PHP method to detect whether a url exists sample code

怪我咯
怪我咯Original
2017-07-07 09:35:551310browse

这篇文章主要介绍了php检测url是否存在的方法,涉及php中get_headers及正则匹配的技巧,非常具有实用价值,需要的朋友可以参考下

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;
}

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