3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php abstract class base { abstract protected function so(); function algo(){ return "aaa";} } class test extends base{ protected function so(){ echo $this->algo(); } }
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_CLASS in <b>/in/GE9No</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_CLASS in <b>/in/GE9No</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/GE9No</b> on line <b>3</b><br />
Process exited with code 255.