3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new StdClass(); $p = &$a; $b[] = $a; echo (&$b[0] == $p)? 'YES':'no';
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected '&' in /in/ss4ga on line 14
Process exited with code 255.
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163.26 ms | 1395 KiB | 36 Q