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run code in 150+ php & hhvm versions
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<?php $str = "yorman"; $str[0] = "a"; // $str[1] = "b"; var_dump( $str ); echo $str;
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(6) "aorman" aorman