dshxbrzgi090608692 2014-11-16 05:37
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已采纳

curl_setopt在浏览器中工作正常但在cron选项卡中没有

Cron command - wget --spider 'url'

php file-

function getHTML($url,$timeout)
{

$ch = curl_init($url); // initialize curl with given url

       curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]); //set  useragent

       curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // write the response to a variable

       curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // follow redirects if any

       curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); // max. seconds to execute

       curl_setopt($ch, CURLOPT_FAILONERROR, 1); // stop when it encounters an error

       return @curl_exec($ch);

}

error- Remote file exists and could contain further links, but recursion is disabled -- not retrieving.

not getting where I am going wrong.

  • 写回答

1条回答 默认 最新

  • doufei2328 2014-11-16 08:48
    关注

    The problem is that you are referencing '$_SERVER["HTTP_USER_AGENT"]' on line 6, but when executing from a crontab, $_SERVER['HTTP_USER_AGENT'] is not defined. Use isset() to check if an array item exists.


    <?php
    function getHTML($url,$timeout)
    {
    
           $ch = curl_init($url); // initialize curl with given url
    
           curl_setopt($ch, CURLOPT_USERAGENT, (isset($_SERVER["HTTP_USER_AGENT"]) ? $_SERVER["HTTP_USER_AGENT"] : "PHP/5.5")); //set  useragent
    
           curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // write the response to a variable
    
           curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // follow redirects if any
    
           curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); // max. seconds to execute
    
           curl_setopt($ch, CURLOPT_FAILONERROR, 1); // stop when it encounters an error
    
           return @curl_exec($ch);
    
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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