test002.php

<?php
declare(ticks=20000000);
$a = new handle();
register_tick_function(array(&$a, 'handler'));
while($a->a > 0) {
    //sleep(1);
}
class handle {
    var $a = 1;
    public function handler() {
        $this->a++;
        echo "ticks handler() called with(".$this->a.")\n";
        if($this->a > 10) $this->a = 0;
    }
}