PHP securely uploads images

How does php securely upload images? This article mainly introduces the method of PHP safe uploading image, which can detect the function of image type to realize security judgment picture. We hope to help you.

This article describes the way PHP securely uploads images. Share to everyone for your reference. The specific analysis is as follows:

This code is used to upload images, you can detect the image according to the type of image is safe, not a simple detection extension

<?php//Upload.phpecho <<<_end
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