php最好的方法来否定一串位

Question

I have an array of string bits of variable length and I need to negate them.

eg.

input array("1", "00101", "101", "0000")

output array("0", "11010", "010", "1111")

Is there a simple way how to do that?

Answer 1

You can do this using strtr function:

$bites = array("1", "00101", "101", "0000");

$output = array_map(function($element){
    return strtr($element, array('1', '0'));
}, $bites);

print_r($output);