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<?php class TestCache { protected $vars = array(); public function assign ($var, $value) { $this->vars[$var] = $value; } public function fetch ($var) { return $this->vars[$var]; } } $a = new stdClass; $a->x = 3; $cache = new TestCache(); $cache->assign('a', $a); $a->x = $a->x + 1; $cachedObject = $cache->fetch('a'); if ($cachedObject->x == $a->x) { print 'By reference'; } else { print 'By value'; }
Output for git.master, git.master_jit, rfc.property-hooks
By reference

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