PHP - Get length of digits in a number

Question

I would like to ask how I can get the length of digits in an Integer. For example:

$num = 245354;
$numlength = mb_strlen($num);

$numl

Answer 1

The accepted solution presents a problem when evaluating negative numbers.

It works with a positive number:

$num = 245354;
$numlength = strlen((string)$num);
// Result: 6

But with a negative number, the (-) is added to the count:

$num = -245354;
$numlength = strlen((string)$num);
// Result: 7

Quick workaround:

$num = -245354;
$numlength = strlen((string)abs($num));
// Result: 6