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<?php abstract class TT { abstract public static function xd(); } class Test { protected const ASD = 23; private static int $field = 5; public string $foo = 'default value' { get { var_dump(debug_backtrace()); return $this->foo; } set(string $value) { var_dump(debug_backtrace()); } } public static function &getSomeProperty() { return self::$field; } } $a =& Test::getSomeProperty(); if ($a === 5) { $a = 2; } var_dump(Test::getSomeProperty()); // 2 $test = new Test();
Output for 8.4.1 - 8.4.21, 8.5.0 - 8.5.6
int(2)
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30
Parse error: syntax error, unexpected token ";" in /in/IA01u on line 16
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Parse error: syntax error, unexpected '{' in /in/IA01u on line 15
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'int' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/IA01u on line 12
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in /in/IA01u on line 10
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: Static function TT::xd() should not be abstract in /in/IA01u on line 5 Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in /in/IA01u on line 10
Process exited with code 255.
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Strict Standards: Static function TT::xd() should not be abstract in /in/IA01u on line 5 Parse error: syntax error, unexpected T_CONST, expecting T_VARIABLE in /in/IA01u on line 10
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Parse error: syntax error, unexpected T_CONST, expecting T_VARIABLE in /in/IA01u on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONST, expecting T_VARIABLE in /in/IA01u on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/IA01u on line 3
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_CLASS in /in/IA01u on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/IA01u on line 3
Process exited with code 255.

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