PHP - If/else, for, foreach, while - without curly braces?

Question

Something that really would like to know but never found out are shortcuts in PHP.

I am currently coding a function with a foreach loop with just a sing

Answer 1

You can use it for simple things like:

if($a === true) continue;

But for some more complicated sub-conditions it may cause you problems:

    $a = false;
    $b = false;
    if ($a === true)
        if ($b === true)
            echo 1;
    else
        echo 2;

With the code above, you would expect to see "2" as output, but you won't.