PHP - file_get_contents无法打开流：连接已关闭？

Question

Implementation (url is a valid and running url):

$html = file_get_contents($url);

I am programming a crawler in php and sometimes file_get_contents returns the following error:

failed to open stream: Connection closed

This doesn't always occur, so when it does it confuses me a tad. Would this be an error on my side or the website I am crawling side? Either way is it sensible to keep retrying until an error doesn't occur or is there a better way?

Answer 1

Try this way...

function url_get_contents ($Url) {
    if (!function_exists('curl_init')){ 
        die('CURL is not installed!');
    }
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $Url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $output = curl_exec($ch);
    curl_close($ch);
    return $output;
}