(PHP 4, PHP 5, PHP 7, PHP 8)
strlen — Get string length
The length of the string in bytes.
Example #1 A strlen() example
<?php
$str = 'abcdef';
echo strlen($str); // 6
$str = ' ab cd ';
echo strlen($str); // 7
?>Note:
strlen() returns the number of bytes rather than the number of characters in a string.