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<?php class foo { private $data; private $relations; public function __set($name, $value) { $this->data[$name] = $value; } public function __get($name) { if(isset($this->data[$name])){ return $this->data[$name]; } if(method_exists('bar',$name)){ $getCalled = get_called_class(); return (new $getCalled())->$name(); } } public function __construct() { $this->data = ['foo' => 'test', 'body' => 'content']; } public function test() { print_r(debug_backtrace()); $function = debug_backtrace()[1]['function']; $this->relations[$function] = ['a' =>'aa', 'b' =>'bb']; return $this; } } class bar extends foo{ public function aa(){ return $this->test(); } } $bar = new bar(); $bar->aa; print_r($bar);
Output for 5.6.30 - 5.6.38, hhvm-3.15.4 - 3.21.3, 7.0.0 - 7.3.0
Array ( [0] => Array ( [file] => /in/HcO8W [line] => 48 [function] => test [class] => foo [object] => bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => ) [type] => -> [args] => Array ( ) ) [1] => Array ( [file] => /in/HcO8W [line] => 22 [function] => aa [class] => bar [object] => bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => ) [type] => -> [args] => Array ( ) ) [2] => Array ( [file] => /in/HcO8W [line] => 56 [function] => __get [class] => foo [object] => bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => ) [type] => -> [args] => Array ( [0] => aa ) ) ) bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => )
Output for hhvm-3.22.0
Array ( [0] => Array ( [file] => /in/HcO8W [line] => -1 [function] => test [class] => foo [object] => bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => ) [type] => -> [args] => Array ( ) ) [1] => Array ( [file] => /in/HcO8W [line] => -1 [function] => aa [class] => bar [object] => bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => ) [type] => -> [args] => Array ( ) ) [2] => Array ( [file] => /in/HcO8W [line] => -1 [function] => __get [class] => foo [object] => bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => ) [type] => -> [args] => Array ( [0] => aa ) ) ) bar Object ( [data:foo:private] => Array ( [foo] => test [body] => content ) [relations:foo:private] => )