Pass variable to pcntl_fork child

[Uggla Henrik <Henrik.Uggla@xxxxxxxxxxxxxxx>]

Hi!

I've tried the following code but the $call variable is not available in the pcntl_fork child. Searching the web, I've found posts that claim that all variables defined before pcntl_fork are copied to the child. I've also found posts that claim that no variables are passed/copied to the child. So, which of them is true and how should I correct my code to make it work?

regards
Henrik



    $call = str_replace('@@', '&', $_GET['call']);

    if ($pid = pcntl_fork())
    {
        $previousCalls=file("calls.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
        if (!in_array($call, $previousCalls))
        {
            file_put_contents("calls.txt", $call."\n", FILE_APPEND);
        }
    }
    else
    {
        function displayUrl($url)
        {
            $ch = curl_init($url);
            curl_setopt ( $ch, CURLOPT_HEADER, 1);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            $curlResult = curl_exec($ch);
            curl_close($ch);
            list($headers,$content) = explode("\r\n\r\n",$curlResult,2);
            foreach (explode("\r\n",$headers) as $hdr)
            {
                if ($hdr != 'Transfer-Encoding: chunked')
                {
                    header($hdr);
                }
            }
            echo $content;
        }
        displayUrl($call);
    }


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