- var_dump: documentation ( source)
<?php
function a() { var_dump('a called'); }
function b(&$abort) {
$abort = TRUE;
var_dump('b called');
}
function c() { var_dump('c called'); }
foreach (array('a', 'b', 'c') as $handler) {
$abort = FALSE;
$args = array();
$args[] = &$abort;
call_user_func_array($handler, $args);
if ($abort) break;
}