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POHow is this PHP/IFRAME file upload working?
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2013-02-03T11:28:16.673
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<p><a href="http://www.ajaxf1.com/tutorial/ajax-file-upload-tutorial.html" rel="nofollow">Check out this link</a>.</p> <p>How is the code working out? I mean the <code>src</code> attribute of IFRAME is set to <code>#</code> then how does <code>upload.php</code> get to know that the form was submitted?</p> <h1>Here is the code : <code>index.php</code> :</h1> <pre><code><html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Max's AJAX File Uploader</title> <link href="style/style.css" rel="stylesheet" type="text/css" /> <script language="javascript" type="text/javascript">  </script> </head> <body> <div id="container"> <div id="header"><div id="header_left"></div> <div id="header_main">Max's AJAX File Uploader</div><div id="header_right"></div></div> <div id="content"> <form action="upload.php" method="post" enctype="multipart/form-data" target="upload_target" onsubmit="startUpload();" > <p id="f1_upload_process">Loading...<br/><img src="loader.gif" /><br/></p> <p id="f1_upload_form" align="center"><br/> <label>File: <input name="myfile" type="file" size="30" /> </label> <label> <input type="submit" name="submitBtn" class="sbtn" value="Upload" /> </label> </p> <iframe id="upload_target" name="upload_target" src="#" style="width:0;height:0;border:0px solid #fff;"></iframe> </form> </div> <div id="footer"><a href="http://www.ajaxf1.com" target="_blank">Powered by AJAX F1</a></div> </div> </body> </html> </code></pre> <hr> <h1><code>upload.php</code> :</h1> <pre><code><?php // Edit upload location here $destination_path = getcwd().DIRECTORY_SEPARATOR; $result = 0; $target_path = $destination_path . basename( $_FILES['myfile']['name']); if(@move_uploaded_file($_FILES['myfile']['tmp_name'], $target_path)) { $result = 1; } sleep(1); ?> <script language="javascript" type="text/javascript">window.top.window.stopUpload(<?php echo $result; ?>);</script> </code></pre>
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<php><ajax><iframe><file-upload>
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How is this PHP/IFRAME file upload working?
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