3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump( ${!${''} = (function(){return 'str'})()}; );
based on NMpEQ
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected '}', expecting ';' in /in/LKiGU on line 4
Process exited with code 255.
Output for 5.3.21 - 5.6.17
Parse error: syntax error, unexpected '}' in /in/LKiGU on line 4
Process exited with code 255.