Fatal error: call to undefined function pcntl_fork() in windows os

Question

0.00/5 (No votes)

See more:

I can't execute php apps because

Call to undefined function pcntl_fork()

how I fix this problems. I used XAMPP for windows 7.
Problems are

$pid = pcntl_fork();

  if ($pid == -1) {
die("ERROR");
  }
  else if ($pid == 0) {
        head($argv[2]);
     exit(0);
  }
  else {
$pids[] = $pid;
      }
    }

Thanks

What I have tried:

else if ($pid == 0) {
        head($argv[2]);

if ($pid == 0)
head($argv[1]);
     exit(0);

Posted 4-Jun-19 22:28pm

Kepiting Bula

Updated 4-Jun-19 22:35pm

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Thomas Daniels · Accepted Answer · 2019-06-04T22:36:00

Solution 1

Unfortunately, the pcntl installation page[^] says:

Quote:
Currently, this module will not function on non-Unix platforms (Windows).

Posted 4-Jun-19 22:36pm

Thomas Daniels

Comments

Kepiting Bula 5-Jun-19 4:39am

I means a solution in this forum but this like unix and out of windows os, any more suggestion

Thomas Daniels 5-Jun-19 4:41am

This is all I cound find:

https://stackoverflow.com/questions/2458005/forking-in-php-on-windows

Kepiting Bula 5-Jun-19 4:55am

This solutions are running windows executable files inside php files, any suggestion

Thomas Daniels 5-Jun-19 4:57am

The point would be that you simulate a fork by running the same process as the currently running one. But I don't really have experience with it myself.

Kepiting Bula 5-Jun-19 5:01am

I see, U say this isn't work with windows os and running process is one or same process but the list of code is not same

Thomas Daniels 5-Jun-19 5:02am

Yeah, the concept of "forking" doesn't actually exist on Windows.

Kepiting Bula 5-Jun-19 5:05am

any suggest,

Thomas Daniels 5-Jun-19 5:06am

Not anymore, I gave you a link which could help finding the closest possible alternative, I found no other resources.

I also don't know what your code wants to do, perhaps there's an alternative to forking and you don't need forking at all. But I can't say anything about that if I don't know your use case.

Kepiting Bula 5-Jun-19 5:14am

my use case

$pid = pcntl_fork();

  if ($pid == -1) {
die("ERROR");
  }
  else if ($pid == 0) {
        head($argv[2]);
     exit(0);
  }
  else {
$pids[] = $pid;
      }
    }

foreach ($pids as $pid) {
  pcntl_waitpid($pid, $status);
}

}

I trying to changes:

else if ($pid == 0) {
        head($argv[2]);

if ($pid == 0)
head($argv[1]);
     exit(0);

Thomas Daniels 5-Jun-19 5:15am

I don't think I know enough about pcntl_fork to know what exactly that script does, let alone to suggest an alternative... so sorry, I don't think I can help you further.

Kepiting Bula 5-Jun-19 5:16am

don't forget and be a learn together

Kepiting Bula 5-Jun-19 4:46am

Thanks for reference

[no name] 18-Jun-19 10:50am

thanks!