Question

How to find the lowest digit in int number with PHP

Answer 1

function getTheLowestDigit($n) {
    $min = 9;
    while ($n != 0) {
        if ($n % 10 < $min) $min = $n % 10;
        $n = (int)($n / 10);
    }
return $min;
}

$n = 213;
echo getTheLowestDigit($n) . "\n";
        
$n = 76594;
echo getTheLowestDigit($n) . "\n";
        
$n = 76529;
echo getTheLowestDigit($n);
    
    

/*
run:

1
4
2

*/

 

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