Question

How to sum two binary strings in PHP

Answer 1

function addBinaryStrings($a, $b) {
    $num1 = bindec($a);
    $num2 = bindec($b);
    
    $sum = $num1 + $num2;
    
    return decbin($sum);
}

$a = "11";
$b = "1";
echo addBinaryStrings($a, $b) . "\n";

$a = "1010";
$b = "1011";
echo addBinaryStrings($a, $b) . "\n";


 
/*
run:
 
100
10101
 
*/

 

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