Online PHP editor | refs for Ng8JL

@ 2014-09-04T01:25:55Z

<?php

usort(array('a', 'b', 'c', 'd'), 'some_sort_function');

function some_sort_function($a, $b) {
  static $foo = NULL;

  if ($foo === NULL) {
    $foo = 'bar';
    echo "just once?\n";
  }

  return 0;
}