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<?php $a = "hola"; call_user_func(function(){ echo $a; },array($&a))
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected '&', expecting variable (T_VARIABLE) or '{' or '$' in /in/kFqMm on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17
Parse error: syntax error, unexpected '&', expecting variable (T_VARIABLE) or '$' in /in/kFqMm on line 6
Process exited with code 255.
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164.83 ms | 1395 KiB | 28 Q