Static locals

Ben Fistein
Saturday, 25 March 2017

This snippet shows the two basic usages of static locals: counting something and checking to ensure that we do not enter into a function more than once

	<?php
	function counter() {
	static $n = 10.0;
	$n ++;
	}

	function initializeMe() {
	static $alreadyCalled = false;

	if ($alreadyCalled) return;
	$alreadyCalled = true;

	echo "Once!";
	}

	function test() {
	for ($i = 0; $i < 10000000; $i++) {
	counter();
	initializeMe();
	}
	}

PHP Peachpie Snippet static locals