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<?php class Test { public static $map = [ 'lolo' => 'Foo', ]; public static function get($vars, $params) { return new self::$_map[$varrs]($params); } } class Foo { public $r; public function __construct($r) { $this->r = $r; } } $varrs = 'lolo'; $params = 213123; $temp = Test::get($varrs, $params); var_dump($temp, $temp->r);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Access to undeclared static property Test::$_map in /in/BcFBX:10 Stack trace: #0 /in/BcFBX(26): Test::get('lolo', 213123) #1 {main} thrown in /in/BcFBX on line 10
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Access to undeclared static property: Test::$_map in /in/BcFBX:10 Stack trace: #0 /in/BcFBX(26): Test::get('lolo', 213123) #1 {main} thrown in /in/BcFBX on line 10
Process exited with code 255.
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
Fatal error: Access to undeclared static property: Test::$_map in /in/BcFBX on line 10
Process exited with code 255.

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