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) $array;
?>
So I want this code to write "true" or "false" instead of numeric values. I know I can build a function but my curiosity likes to learn a built-in way if there is any.
Simply use the conditional operator:
echo (true ? 'true' : 'false');
echo (false ? 'true' : 'false');
echoing a boolean will always print either 0 or 1. Instead, use var_dump().
Another option is to echo 'true' or 'false' based on the value:
echo ((bool)$array) ? 'true' : 'false'
var_export() prints type and result.
echo var_export((bool)$array, 1);
I think the main problem is to convert the array ELEMENTS to booleans, not the array as a whole.
You could use the function array_map for this.
function conv2bool($i) { return (bool) $i; }
$int_array = array(0,1,0,2,3);
$bool_array = array_map("conv2bool", $int_array);
var_dump($bool_array);
...this will return:
array(5) { [0]=> bool(false) [1]=> bool(true) [2]=> bool(false) [3]=> bool(true) [4]=> bool(true) }