PHP and ?

[circuitjump]

Quick question.

What does the ? (question mark) do in PHP?

Or more to the point.

I'm trying to convert this javascript

X = (!X ? 2 : X);

to PHP

It's supposed to mean I think

if X is not true then use X, else if it is true then use 2

I think

Thanks

[toadhall]

Ternary operator.

$first ? $second : $third
If the value of the first subexpression is TRUE (non-zero), then the second subexpression is evaluated, and that is the result of the conditional expression. Otherwise, the third subexpression is evaluated, and that is the value.

[php.net...] (find: ternary)

[circuitjump]

You know I could not find this information in any of my PHP books. And I got three of them.

Thanks for the answer