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<?php class Test { protected $reference; protected $items = [ 'test', 'test2', 'test3' ]; public function setupReferenceMiddle() { $this->reference = &$this->items[1]; } public function setupReferenceEnd() { $this->reference = &$this->items[2]; } public function output() { return implode(', ', $this->items) . PHP_EOL; } public function modify($value) { $this->reference = $value; } } $test = new Test; echo $test->output(); $test->setupReferenceMiddle(); $test->modify('middle'); echo $test->output(); $test->setupReferenceEnd(); $test->modify('end'); echo $test->output();
Output for git.master, git.master_jit, rfc.property-hooks
test, test2, test3 test, middle, test3 test, middle, end

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