3v4l.org

run code in 150+ php & hhvm versions
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<?php &$a = $b = 2; echo $a.' - '.$b; $a = 4; echo $a.' - '.$b; $b = 5; echo $a.' - '.$b;
Output for 5.3.0 - 5.4.25
Parse error: syntax error, unexpected '&' in /in/TsVU4 on line 2
Process exited with code 255.