Can't start threads with pthread

[apacher]

I'm using newest xammp 7.0.2 and I want to start my php script with pthreads (I have php-cli.ini for this, where pthreads are included and memory limit set to 3gb). But I always geting this:

Code: Select all

PHP Fatal error:  Uncaught RuntimeException: cannot start my_thread, out of reso
urces in C:\xampp\htdocs\w\start_threads.php:160
Stack trace:
#0 C:\xampp\htdocs\w\start_threads.php(160): Thread->start()
#1 {main}
  thrown in C:\xampp\htdocs\w\start_threads.php on line 160

Fatal error: Uncaught RuntimeException: cannot start my_thread, out of resources
 in C:\xampp\htdocs\w\start_threads.php:160

At the same time, clean php 7 works fine. How can I solve this issue? Maybe I need to tweak some php-cli.ini variables? Thanks!