test_ref($ar[]);        var_dump($ar);        $this->test($ar[]);    }}$o = new XmlTest();$o->run();?>">

Reading [] (original) (raw)

`<?php
class XmlTest {

function

test_ref(&$test) {
$test = "ok";
}

function

test($test) { }

function

run() {
$ar = array(); this−>testref(this->test_ref(this−>testr​ef(ar[]);
var_dump($ar); this−>test(this->test(this−>test(ar[]);
}
}$o = new XmlTest();
$o->run();
?> `

This should always have thrown a fatal E_ERROR, because [] cannot be used for reading in PHP. It is invalid code in PHP 4.4.2 and PHP 5.0.5 upward.