dongting7352 2014-10-05 17:38
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PHP:从重定向的URL获取链接地址

How can I get the link address after a URL has been redirected?

Take for example this URL: http://www.boligsiden.dk/viderestilling/992cff55882a40f79e64b0a25e847a69

How can I make a PHP script echo the final URL? (http://www.eltoftnielsen.dk/default.aspx?side=sagsvisning&AutoID=125125&DID=140 in this case)

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  • dougao9864 2014-10-05 17:52
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    Note: The following solution isn't ideal for high traffic situations.

    $url = 'http://www.boligsiden.dk/viderestilling/992cff55882a40f79e64b0a25e847a69';
    
    file_get_contents($url);
    preg_match('/(Location:|URI:)(.*?)
    /', implode("
    ", $http_response_header), $matches);
    
    if (isset($matches[0]))
    {
        echo $matches[0];
    }
    

    Here's what happens: file_get_contents() redirects and downloads the target website but writes the original response header into $http_response_header.

    the preg_match tries to find the first "Location: x" match and returns it.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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