3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "A-MTP-"; $i = 1; $j=1; $s=1; while ($i < 4) { $ch="ch".$s ; $ch= "$".$ch; $$ch[] = ""; while($j < 13) { $j++; } $i++;$s++; }
Output for 7.0.0 - 7.2.0
Output for 4.3.2 - 5.6.28
Fatal error: Cannot use [] for reading in /in/Zn1Ir on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot use [] for reading in /in/Zn1Ir on line 10