File upload using html ajax php

Question

Previously i have performed submitting html page's data to php page by ajax using get or post method.Now i want to know suppose my html page have an input tag of type file in following way

<input type="file" name="image_file" id="image_file" />
<input type="button" id="btn_crop" onclick="btbn_click()" />

Now i want to perform that after clicking the button the file will be transferred to "crop.php" by ajax.I don't want to use the ajax file upload cause i wish to perform the cropping before storing the file in server hard disk page.Now can any body give me suggestion about this?

Answer 1

You might find this Nettuts+ tutorial helpful. That's for uploading files with AJAX. Now, when the file gets transferred to your server, it is automatically stored in a temporary directory, from where you can move it after cropping it and whatsoever. If you want, you can also try deleting it afterwards, I don't know.

Try the GD functions for cropping. A good search will do the trick.

Hope I helped.