3v4l.org

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<?php $a=1; $b=2; $c=3; unset($a,$c,$b); var_dump($a,$b,$c); $a = array(1,2); echo ($a)? 'pass' : 'fail';
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $a in /in/LV9lA on line 6 Warning: Undefined variable $b in /in/LV9lA on line 6 Warning: Undefined variable $c in /in/LV9lA on line 6 NULL NULL NULL pass
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: a in /in/LV9lA on line 6 Notice: Undefined variable: b in /in/LV9lA on line 6 Notice: Undefined variable: c in /in/LV9lA on line 6 NULL NULL NULL pass
Output for 7.3.32 - 7.3.33
NULL NULL NULL pass
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: a in /in/LV9lA on line 6 Notice: Undefined variable: b in /in/LV9lA on line 6 Notice: Undefined variable: c in /in/LV9lA on line 6 NULL NULL NULL pass
preferences:
292.64 ms | 402 KiB | 457 Q