Return the length of the string "Hello": in PHP

Description

The following code shows how to return the length of the string "Hello":.

Example

  //from   ww  w  .j a  v  a  2 s  .  co m
<?php
   echo strlen("Hello");
?>
Return the length of the string "Hello World": 
  
<?php
    echo strlen("Hello world!");
?>

The code above generates the following result.