How to find number of characters in a string in PHP?

This can be done by using PHP strlen() function.
The PHP strlen() function is used to find the number of characters in a string of text. It also includes the white spaces inside the string.

For example:

<?php
$my_str1 = 'The quick brown fox jumps over the lazy dog.';
echo strlen($my_str1); // Outputs: 44
 
$my_str2 = ' The quick brown fox jumps over the lazy dog. ';
echo strlen($my_str2); // Outputs: 49
?>