Simple PHP require big file question
<p>I have 2 php files:</p>

<pre><code>index.php (5KB)
blob.php (50,000KB - yes, 50mb php file)
</code></pre>

<p>Now, index.php contains an <code>if statement</code>.  Like this:</p>

<pre><code>if (temp&gt;3){
blah blah
} else {
require 'blob.php';
}
</code></pre>

<p><strong>Will php load all of the 50MB every time index.php is requested or only when that part of the if statement is valid?</strong></p>

<p>edit - cleaned the question to be more meaningful.  Take the 50mb as just an example of "very large file".  I knew you guys would lose focus of the question so I tried to simplify the problem in advance and it backfired.</p>
