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<?php class foo { public function test1() { echo foo::class . "\n"; return (object) ['foo::test' => 'test', 'body' => 'content']; } public function test() { print_r(debug_backtrace()); return $this; } } class bar extends foo{ public function aa(){ return $this->test(); } } $bar = new bar(); $bar->aa();
Output for 5.6.30, hhvm-3.15.4 - 3.18.4, hhvm-3.19.2 - 3.21.3, 7.0.0 - 7.3.0rc3
Array ( [0] => Array ( [file] => /in/BaSea [line] => 26 [function] => test [class] => foo [object] => bar Object ( ) [type] => -> [args] => Array ( ) ) [1] => Array ( [file] => /in/BaSea [line] => 34 [function] => aa [class] => bar [object] => bar Object ( ) [type] => -> [args] => Array ( ) ) )
Output for hhvm-3.18.5, hhvm-3.22.0
Array ( [0] => Array ( [file] => /in/BaSea [line] => -1 [function] => test [class] => foo [object] => bar Object ( ) [type] => -> [args] => Array ( ) ) [1] => Array ( [file] => /in/BaSea [line] => -1 [function] => aa [class] => bar [object] => bar Object ( ) [type] => -> [args] => Array ( ) ) )