If you preview your image in black and (Linux web host)
If you preview your image in black and white, you will get a screen with nothing but the image. Try hitting your browser s back button and try saving the file in black and white this time. You should see something like that shown in Figure 7-5 (of course in this book the images always show up in black and white, but bear with us, okay?). Figure 7-5 How It Works If you look at the lines you added in showimage.php, you see the following lines first: //**INSERT THE FOLLOWING LINE: if (isset($_REQUEST[ mode ])) { $mode = $_REQUEST[ mode ]; } else { $mode = ; } //**END OF INSERT You have added this variable because in modifyimage.php you send users back to this page to show them their newly modified image. You want to send them some kind of confirmation that the change(s) 212 Chapter 7
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