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<?php function myTapFunction($value) { tempFn($value); return $value; } function tempFn($value) { return $value->increment(5); } class Test { public $val = 0; public function increment($val) { $this->val += $val; } } $a = new Test(); var_dump( myTapFunction($a) );
Output for git.master, git.master_jit
object(Test)#1 (1) { ["val"]=> int(5) }

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