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<?php class testParent { public function f1() { echo 1; } public function f2() { echo 2; } } class testChild extends testParent{ public function f2($a) { //overriding function f2 echo $a; } } $test = new testChild(); echo $test->f2('a'); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of testChild::f2($a) must be compatible with testParent::f2() in /in/WXgkZ on line 16
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of testChild::f2($a) should be compatible with testParent::f2() in /in/WXgkZ on line 16 a
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of testChild::f2($a) should be compatible with testParent::f2() in /in/WXgkZ on line 20 a
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Strict Standards: Declaration of testChild::f2() should be compatible with testParent::f2() in /in/WXgkZ on line 20 a
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 testChild::f2() should be compatible with that of testParent::f2() in /in/WXgkZ on line 20 a
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/WXgkZ on line 4
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/WXgkZ on line 4
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/WXgkZ on line 4
Process exited with code 255.
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242 ms | 401 KiB | 330 Q