3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $filter = 'ololo'; $k = "fil.ter"'; echo ${$k};
Output for 5.4.0 - 5.4.16
Parse error: syntax error, unexpected '';' (T_ENCAPSED_AND_WHITESPACE) in /in/eJkDU on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.26
Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE in /in/eJkDU on line 3
Process exited with code 255.