CURL hangs after form submission - php

Question

I have searched for a while and found many similar situations occurring for others; however, I cannot find a solution that works for me.
I have the latest Ubuntu, Apache, and PHP versions running on my server. I checked for updates and after installing them, nothing improved. Here is my code:
$ip = getServerIP($stand).":8080";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$ip);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'server-id: '.$stand,
'script: '.$script,
'device: '.$device,
'api-key: '.file_get_contents(getcwd() .'/../secure/serverkey')
));
curl_exec($ch)
curl_close($ch);
$stand is a parameter the parent function takes. Everything works fine up until I call curl_exec. This code runs when a form has been submitted. Chrome hangs on the form page for about 2 minutes, and then it finally goes to the page this code is on. Any guidance?
Update: The problem was on the C# side; this question is no longer relevant. Sorry, I am working with someone else and they are handling the C#, so I don't know what the issue was.

Answer 1

This is too bulky for comments, so here is I setup verbose CURL in my ApiHelper class:
$st = microtime(true);
$verbiage = null;
if ($this->verbose) {
// write out the curl debug stuff
curl_setopt($ch , CURLINFO_HEADER_OUT , false);
curl_setopt($ch , CURLOPT_VERBOSE , true);
$verbiage = fopen('php://temp' , 'w+');
curl_setopt($ch , CURLOPT_STDERR , $verbiage);
}
$resp = curl_exec($ch);
$end = microtime(true); // get as float
$delta = 1000.0 * ($end - $st); // treat as float
if (Config::getCurrentConfig()->options->logServerResponseTimes) {
$this->getInstanceLogger()->debug("WS Round trip took " . sprintf("%.2f" , $delta) . " ms.");
}
if ($this->verbose) {
// rewind and log the verbose output
rewind($verbiage);
$verboseLog = stream_get_contents($verbiage);
$this->getInstanceLogger()->debug("Verbose cURL : \n$verboseLog");
fclose($verbiage);
}
curl_close($ch);
return $resp;
Finally, xdebug is the protocol suite in support of symbolic debugging of php processes. It slows down things some, but mostly tries to initiate outbound connexions all the time between the running (under debug) php process and a listening process. Look in your php.ini files (apache, php-fpm, and cli), and turn off xdebug if it is there.