How to count the number of digits in a integer in PHP

In this tutorial we are going to learn, how to count the number of digits in a given integer in PHP with the help of examples.

Consider, we have following integer in our php code.

$pincode = 600583;

To count the number of digits in a given integer, first we need to convert the number to a string using the strval() method then pass it to the strlen() method to get total number of digits in integer.

The strlen() function takes the string as an argument and returns the total number of characters in it.

Here is an example:

$pincode = 600583;
$count = strlen(strval($pincode));

echo $count;

Output:

6

In the example above, we first called the strval() by passing a $pincode , so it converts the number to a string then we used the strlen() method to get the total number of digits.

Similarly, we can use the logarthmic solution in php to get the total number of digits from a number.

Here is an example:

$pincode = 600583;
$count = ceil(log10($pincode));

echo $count;