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run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(-1); abstract class A { public function foo(){ array_map( 'static::bar', ['hello', 'world']); } abstract public static function bar($arg); } class B extends A { public static function bar($arg) { var_dump($arg); } } $b = new B; $b->foo();
Output for hhvm-3.12.0, 7.0.0 - 7.1.0
string(5) "hello" string(5) "world"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.28
Strict Standards: Static function A::bar() should not be abstract in /in/1HpD1 on line 10 string(5) "hello" string(5) "world"
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/1HpD1 on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/1HpD1 on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/1HpD1 on line 4
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_CLASS in /in/1HpD1 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/1HpD1 on line 4
Process exited with code 255.