how run other php code by one php code asynchronous?

Question

explain by example : f.php :

d$=$_Get['ad'];
 print d$;

index.php :

 for $i=0 to 200000
     // run f.php?ad=i$

run f.php but dont wait to finish f.php how can do that?

i find php asynchronus but i dont now this is working realy or existing other solution or is this best solution?!!
when use exec and how ??

exec is used to run external code such as getting system stats from your program. You really want to look into forking. — Geoffrey Wagner
– Geoffrey Wagner, Commented Jun 10, 2011 at 18:59
Related questions: php execute a background process, How can I run a PHP script in the background after a form is submitted? — netcoder
– netcoder, Commented Jun 10, 2011 at 19:04

Geoffrey Wagner · Accepted Answer · 2011-06-10 18:58:46Z

5

The term your looking for is called forking. Here is a link to all the PHP docs you will need to fork your code into async procs.

http://php.net/manual/en/function.pcntl-fork.php

answered Jun 10, 2011 at 18:58

Geoffrey Wagner

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2 Comments

naser Over a year ago

how can send data to child made by fork ?

Geoffrey Wagner Over a year ago

define it in a var such as $child_data = "some data"; and then fork your child process (child processes have access to all the variables in the parent process). The only things that cant be forked are resource connections such as mysql, those need to be recreated inside of the new fork.

Frankie · Accepted Answer · 2011-06-10 19:03:39Z

1

If you're running linux and have access to php CLI you can have something like this:

<?php
// this will launch worker to run something... 
shell_exec('php worker.php >/dev/null &');

// the rest of the flow goes here
...
?>

worker.php could be writting stuff to a database, sending emails, whatever...

answered Jun 10, 2011 at 19:03

Frankie

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3 Comments

Geoffrey Wagner Over a year ago

shell_exec is still blocking as it returns the output. Note the & at the end to foce things (in linux/unix) to run in the background. If you dont add the & then this solution wont work, also not ideal for firing off background work as this will become very cumbersome in the longrun.

Frankie Over a year ago

@George, utterly agree... this is just a simple easy fix.

Frankie Over a year ago

@Geoffrey please accept my apologies. Should NEVER, EVER, write anything down while talking on the phone at the same time. Sorry! ;)

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