3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { function foo() { echo "A::foo\r\n"; } } class B extends A { function foo() { echo "B::foo\r\n"; } function sayIt(A $a) { $a->foo(); } } $a = new A; $b = new B; $a->foo(); $b->foo(); $b->sayIt($b);
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, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
A::foo B::foo B::foo
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/qbesH on line 14
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 ')' in /in/qbesH on line 14
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/qbesH on line 14
Process exited with code 255.
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217.09 ms | 401 KiB | 313 Q