3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $b = &$a; $a[] = $a; $b[] = $b; var_dump($a === $b);
Output for 5.3.15 - 5.3.29, 5.4.5 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true)
Output for 5.2.3 - 5.3.14, 5.4.0 - 5.4.4
Fatal error: Nesting level too deep - recursive dependency? in /in/4KbMP on line 7
Process exited with code 255.
Output for 4.3.2 - 5.2.2
<br /> <b>Fatal error</b>: Nesting level too deep - recursive dependency? in <b>/in/4KbMP</b> on line <b>7</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Nesting level too deep - recursive dependency? in <b>/in/4KbMP</b> on line <b>7</b><br />