- var_dump: documentation ( source)
<?php
function &returnRef() {
global $a;
return $a;
}
function returnVal() {
global $a;
return $a;
}
$a = "original";
$b =& returnVal();
$b = "changed";
var_dump($a); //expecting warning + "original"
$a = "original";
$b =& returnRef();
$b = "changed";
var_dump($a); //expecting "changed"