Description

The following code:

<?php

declare(ticks=1);

register_tick_function(function(){
  if(Fiber::getCurrent() !== null) {
    Fiber::suspend();
  }
});


for($i = 3; $i--;)
{
  $fibers[$i] = new fiber(function (){
    echo "1\n";
    echo "2\n";
    echo "3\n";
  });

  $fibers[$i]->start();
}

Resulted in this output:

1
1
2
3
1
2
3

But I expected this output instead:

1
1
1

Explanation:
If we are inside a fiber, after each tick, the tick function should call Fiber::suspend().
But currently this tick function only works inside first Fiber.

PHP Version

PHP 8.1.8

Operating System

macOS