3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $arr(0 => "a", 1 => "b" ); $a[0] = $arr; ?>
Output for 5.4.0 - 5.4.14
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/fDWnk on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.24
Parse error: syntax error, unexpected T_DOUBLE_ARROW in /in/fDWnk on line 5
Process exited with code 255.
preferences:
191.63 ms | 1395 KiB | 47 Q