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https://i.stack.imgur.com/JU3e2.jpg
So I am uploading some images but when I run it against some would be php validation This photos seems not to have a mime/type. should I measure against the text extension instead? (explode(“.”,”img.jpg”)) or is there a fix for this?
The MIME type for uploaded files is set by the client, not by the server. As such, it is completely unreliable.
If you want to check that a file actually is an image of a given format, you should rather use the exif_imagetype function.
http://php.net/manual/en/function.exif-imagetype.php