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How to Refresh page, without caching

Hi all, after doing some image process using the image_lib library, the image on my page is not refreshing. Usually, I refresh them manually by pressing F5. How to refresh the php pages ? Thanks

how to turn of caching for a while, and after i refreshed my pages, i can turn it on again

I've tried the redirect function but it's not working
here is my code :
$config['source_image'] = './paint/'.$hh;
            $config['rotation_angle'] = 90;
            if (!$this->image_lib->rotate())
            echo $this->image_lib->display_errors();
            echo "ROTATE PROCESS FAIL <BR />";
            //echo "ROTATE PROCESS SUCCESS <BR />";


You could try redirecting to the same page without the refresh:

I've done that, but the problem is, the $_POST variables is not resent... do u have any other methods to resend the $_POST values

Is this for an edit page? You could just query to the database to populate the form.

If you're using the validation class you combine it with the query to repopulate the form.

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