<?php
echo file_get_contents(__FILE__);
echo PHP_EOL . '=============' . PHP_EOL;
system('& id');
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ML0Lk on line 3
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ML0Lk on line 3
PHP_EOL=============PHP_EOLsh: 1: Syntax error: "&" unexpected
Output for 4.3.0
<?php
echo file_get_contents(__FILE__);
echo PHP_EOL . '=============' . PHP_EOL;
system('& id');
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ML0Lk on line 3
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/ML0Lk on line 3
PHP_EOL=============PHP_EOL