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POPHP: What's the point of UPLOAD_ERR_INI_SIZE?
 

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  1. POPHP: What's the point of UPLOAD_ERR_INI_SIZE?
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    <p>The PHP manual has a section called <a href="http://www.php.net/manual/en/features.file-upload.php" rel="nofollow">Handling file uploads</a>. That section has a subsection called <a href="http://www.php.net/manual/en/features.file-upload.errors.php" rel="nofollow">Error Messages Explained</a>. That subsection describes an error called "UPLOAD_ERR_INI_SIZE":</p> <p>Value: 1; The uploaded file exceeds the <a href="http://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize" rel="nofollow">upload_max_filesize</a> directive in <em>php.ini</em>.</p> <p>However, in my experience, it's impossible to ever check for this particular error using UPLOAD_ERR_INI_SIZE because if a user ever does upload a file that exceeds the upload_max_filesize directive in php.ini, the $_FILES superglobal is empty. Want to test it for yourself? Save this as "upload_test.php" and then try to upload a file that's under the limit and then a file that's over the limit:</p> <pre><code>&lt;?php if (isset($_GET['submitted']) &amp;&amp; $_GET['submitted'] === 'true') { echo 'Contents of $_POST:&lt;hr&gt;&lt;pre&gt;'; print_r($_POST); echo '&lt;/pre&gt;&lt;hr&gt;Contents of $_FILES:&lt;hr&gt;&lt;pre&gt;'; print_r($_FILES); echo '&lt;/pre&gt;&lt;hr&gt;'; exit; } $max_filesize_in_mib = min((int)(ini_get('upload_max_filesize')), (int)(ini_get('post_max_size')), (int)(ini_get('memory_limit'))); ?&gt; &lt;!DOCTYPE html&gt; &lt;html lang="en"&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&gt; &lt;title&gt;PHP Upload Test&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;h1&gt;Upload a File (Maximum File Size: &lt;?php echo $max_filesize_in_mib; ?&gt; MiB)&lt;/h1&gt; &lt;form action="upload_test.php?submitted=true" enctype="multipart/form-data" method="post"&gt; &lt;input type="file" name="upload_test"&gt; &lt;input type="hidden" name="random_field" value="You should see this field in the $_POST superglobal."&gt; &lt;input type="submit" value="Upload"&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>So my question is this: what's the point of UPLOAD_ERR_INI_SIZE if you can never check for it?</p>
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