在PHP中转换为布尔值[重复]

Question

Possible Duplicate:
How to Convert Boolean to String

I think that asking this might be kind of silly but I'm still wondering whether there is built-in way to return false or true as they way they look instead of 0 or 1, well actually this code even doesn't write 0 but 1:

<?php
$array = array(1,2,3);
echo (bool) $array;
?>

So I want this code to write "true" or "false" instead of numeric values. I know I can build a function but my curiosity likes to learn a built-in way if there is any.

Answer 1

Simply use the conditional operator:

echo (true ? 'true' : 'false');
echo (false ? 'true' : 'false');

Demo: http://codepad.org/hNHhXnBv