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run code in 150+ php & hhvm versions
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<?php $x = function(){} $y = function($x){echo 'foo';} $y = function($x){echo 'bar';} var_dump(array_search(function($x){echo 'foo';}, array($x,$y,$z)));
Output for 5.4.0 - 5.4.25
Parse error: syntax error, unexpected '$y' (T_VARIABLE) in /in/81sNF on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/81sNF on line 4
Process exited with code 255.