The unregister_tick_function Function

The unregister_tick_function function removes a function from the list of functions executed on each tick. It takes the name of the function to be removed as a parameter. The function returns true on success and false on failure.

Syntax

unregister_tick_function(callable $function);

Example

Let's register and then unregister a function:

<?php
	function tick_handler() {
		echo "Tick\n";
	}
	
	register_tick_function('tick_handler');
	
	declare(ticks=1) {
		$i = 0;
		while ($i < 3) {
			echo "Loop $i\n";
			$i++;
		}
	}
	
	unregister_tick_function('tick_handler');
	
	// Now the tick_handler function will not be called
	$i = 0;
	while ($i < 3) {
		echo "After unregister $i\n";
		$i++;
	}
?>

Execution result:

Loop 0
Tick
Loop 1
Tick
Loop 2
Tick
After unregister 0
After unregister 1
After unregister 2

Example

Attempting to unregister a non-existent function:

<?php
	$res = unregister_tick_function('non_existent_function');
	var_dump($res);
?>

Execution result:

false

The unregister_tick_function Function

Syntax

Example

Example

See Also