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<?php $values = array('value', FALSE, array(), NULL); foreach ($values as $value) { var_dump($value ?? 'default'); }
based on E0XQ0
Output for 7.0.0 - 7.2.0
string(5) "value" bool(false) array(0) { } string(7) "default"
Output for 5.5.0 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/6JvqP on line 4
Process exited with code 255.