What is the purpose of using `include` in PHP?
<p>What is the purpose of using <code>include</code> in PHP, because if the file does not exist then there is something wrong with either the script or the web servers configuration. Surely it is better to use <code>require</code> so that the problem gets highlighted.</p>

<p>So, what is the purpose of <code>include</code> in the language?</p>
