3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a{ protected $b = $a . "asdf"; protected $a = "hjk"; } echo (new a)->a;
Output for 5.4.0 - 5.4.23
Parse error: syntax error, unexpected '$a' (T_VARIABLE) in /in/t4q7K on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/t4q7K on line 5
Process exited with code 255.
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181.45 ms | 1395 KiB | 60 Q