3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { const FOO = 'FOO'; const BAR = 'BAR'; const FOO_BAR = self::FOO . ' ' . self::BAR; } echo Foo::FOO_BAR;
Output for 5.6.8 - 7.1.0
FOO BAR
Output for 5.1.0 - 5.5.35
Parse error: syntax error, unexpected '.', expecting ',' or ';' in /in/MhR8Z on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '.', expecting ',' or ';' in /in/MhR8Z on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/MhR8Z on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/MhR8Z on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/MhR8Z on line 5
Process exited with code 255.