3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A { public function __toString() { return 'foo'; } } $f = new A; $$f; //var_dump((string) $f);
Output for 5.2.0 - 7.1.0
Notice: Undefined variable: foo in /in/rNSHJ on line 8
Output for 5.0.4 - 5.0.5, 5.1.1 - 5.1.6
Notice: Object of class A to string conversion in /in/rNSHJ on line 8 Notice: Undefined variable: Object in /in/rNSHJ on line 8
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/rNSHJ on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Object of class A to string conversion in /in/rNSHJ on line 8 Notice: Undefined variable: Object in /in/rNSHJ on line 8
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/rNSHJ on line 3
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_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/rNSHJ on line 3
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/rNSHJ on line 3
Process exited with code 255.