How to Find the Length of String in PHP?

Last updated on May 1, 2023 by Ayaz Ali Shah

The strlen() function is used to find the length of a string PHP. It takes a string as a parameter and returns the length in an integer. It is supported by PHP 4, 5, 7 and 8.




It has a required parameter that refers to the string that words needed to count.

Example 1

Let’s find the length of the string “programming” through the strlen() function. To do that, we need to pass the string into the function.

echo strlen("programming");
// Output: 11

In this example, a string that contains programming is passed as an argument into the strlen() function. In the output, the strlen() function returned 11 which is because programming contains 11 alphabetic letters.

Example 2

In the previous example, we found a string’s length containing a single word. Now let’s find out the length of the string that contains a phrase.

echo strlen("programming is best");
// Output: 19

In this example, a string that contains words and white spaces is passed into the strlen() function to find the length. In the output it returns 19 which means the strlen() function counts the alphabetic letters along with white spaces.


This article demonstrates how to find out the string length in PHP. It uses the PHP built-in function strlen() that takes the string as an argument and returns the length of the string.

Share on:

Related Posts

Tags: PHP, String,