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strlen():

This function returns the number of characters in a string. It takes a string as an argument. This means The strlen function in PHP is used to return the length of a string. The syntax of the strlen function is:

strlen ('string')

Let's take a look at the examples below:

Example 1

<?php
echo strlen('PHP arrays'); 
?>

Output : 10

Example 2

<?php
echo strlen(' PHP arrays '); 
?>

Output : 12

From the above, we see that spaces count towards string length just like a character does.

Example 3

<&?php
$str = "Hello!";
echo strlen($str);
?>

Output : 6

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