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PHP strlen() Function

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In this article, we will see how to get the length of the string using strlen() function in PHP, along with understanding its implementation through the examples.

The strlen() is a built-in function in PHP which returns the length of a given string. It takes a string as a parameter and returns its length. It calculates the length of the string including all the whitespaces and special characters. 

The below

strlen($string);

Parameters: The strlen() function accepts only one parameter $string which is mandatory. This parameter represents the string whose length is needed to be returned. 

Return Value: The function returns the length of the $string including all the whitespaces and special characters. 

The below programs illustrate the strlen() function in PHP:

Example 1: The below example demonstrates the use of the strlen() function in PHP.

PHP




<?php
 
// PHP program to find the
// length of a given string
$str = "GeeksforGeeks";
 
// prints the length of the string
// including the space
echo strlen($str);
 
?>


Output:

13

Example 2: This example demonstrates the use of the strlen() function where the string has special characters and escape sequences.

PHP




<?php
 
// PHP program to find the
// length of a given string which has
// special characters
$str = "\n GeeksforGeeks Learning;";
 
// here '\n' has been counted as 1
echo strlen($str);
 
?>


Output:

25

PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.



Last Updated : 20 Nov, 2023
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