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Home/ Questions/Q 4121640
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Editorial Team
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Editorial Team
Asked: May 20, 20262026-05-20T23:22:38+00:00 2026-05-20T23:22:38+00:00

I am using ajax prototype.js . I have a input type=file id=fileId button. var

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I am using ajax prototype.js. I have a input type="file" id="fileId" button.

var fileName = $("fileId").value gives the file name and not its contents.

How can I post the content of a file (selected from input type="file") to php script using Ajax.Updater or Ajax.Request?

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  1. Editorial Team
    Editorial Team
    2026-05-20T23:22:39+00:00Added an answer on May 20, 2026 at 11:22 pm

    You can’t do file uploads using AJAX like that. It’s a browser security feature.

    However, you can use an iframe to simulate this behavior.

    http://www.openjs.com/articles/ajax/ajax_file_upload/

    This is not a file upload using AJAX, but it simulates the behavior.

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