3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); class B { function myfunction($var = "default") { echo $var; } } class C extends B { function myfunction() { echo "myfunction"; } } $c = new C(); $c->myfunction(); $b = new B(); $b->myfunction();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of C::myfunction() must be compatible with B::myfunction($var = 'default') in /in/nZZHv on line 14
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of C::myfunction() should be compatible with B::myfunction($var = 'default') in /in/nZZHv on line 14 myfunctiondefault
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of C::myfunction() should be compatible with B::myfunction($var = 'default') in /in/nZZHv on line 18 myfunctiondefault
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Strict Standards: Declaration of C::myfunction() should be compatible with B::myfunction($var = 'default') in /in/nZZHv on line 18 myfunctiondefault
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 C::myfunction() should be compatible with that of B::myfunction() in /in/nZZHv on line 18 myfunctiondefault
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
myfunctiondefault

preferences:
296.69 ms | 402 KiB | 452 Q