Need help with eval

[rain13]

I am trying to eval if condition but for somereason ""itworks" never gets printed. When you call my_if(true||false); directly, it'll return true but not when you eval code.Does anyone know how to eval expression of trues and falses to get only 1 true or false?

<?phpfunction my_if($cond){    return $cond;}if(eval("my_if(true||false);")){    print("itworks\n");}?>

Examples (let T be true and F be false):T||T shall give TT||F shall give TT&&(T||F) shall give T since (T||F) is T therefore T &&T is T

[jeffman]

What are you really asking? Your function does NOTHING, and eval is not necessary. The logical operators you are using (&& and ||)are all you should need.

[rain13]

I finally got it work. I had to use return(...); instead. My goal was to eveluat string containing only true, false and logic operators.

[justsomeguy]

That's correct, eval simply executes code it does not automatically return a value unless the evaluated code contains a return statement.