3v4l.org

run code in 300+ PHP versions simultaneously
<?php class base { public function click() { $this->innerClick(2); } private function innerClick($param) { echo "Called innerClick from base.\n"; } } class extension extends base { public function innerClick() { echo "Called innerClick from extension.\n"; } } $example = new extension(); $example->click();
Output for 5.6.24 - 5.6.40, 7.0.10 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.20, 8.1.0 - 8.1.7
Called innerClick from base.
Output for 7.0.0 - 7.0.9
Warning: Declaration of extension::innerClick() should be compatible with base::innerClick($param) in /in/KeuU2 on line 22 Called innerClick from base.
Output for 5.4.4 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.23
Strict Standards: Declaration of extension::innerClick() should be compatible with base::innerClick($param) in /in/KeuU2 on line 22 Called innerClick from base.
Output for 5.4.0 - 5.4.3

Process exited with code 139.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Strict Standards: Declaration of extension::innerClick() should be compatible with that of base::innerClick() in /in/KeuU2 on line 22 Called innerClick from base.
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/KeuU2 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/KeuU2 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/KeuU2 on line 5
Process exited with code 255.

preferences:
100.08 ms | 422 KiB | 12 Q