what is strlen in php code example

Example 1: get number of chars ina string php

$name = "Perú"; // With accent mark
echo strlen($name); // Display 5, because "ú" require 2 bytes.

$name = "Peru"; // Without accent mark
echo strlen($name); // Display 4

Example 2: php string length

<?php
$str = 'Hello World!';
echo strlen($str); // 12
?>