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PHP

Posted by KnowledgeWoods Consulting
KnowledgeWoods Consulting
5,607 Points

I want to overwrite the image in the folder of different extensions (jpg, jpeg, png) in PHP.

Hi, Thanks in advance. I want to upload image in folder named as "uploads". Image type which can be uploaded are jpg, jpeg, and png. Once, i upload it in the folder and now want to overwrite the file, i am able to overwrite the file with same type. But when i try to overwrite the file with different type, i am unable to do that. Instead of overwriting, the new image is uploaded and the old image is not deleted from the folder.

3 Answers

thomascawthorn
thomascawthorn
22,986 Points
thomascawthorn
thomascawthorn
22,986 Points

hmmm, if overwriting isn't working for you, perhaps you could use two steps - 1) Delete the file 2) Add the new one?

Jeff Lemay
Jeff Lemay
14,268 Points
Jeff Lemay
Jeff Lemay
14,268 Points

You'd have to write something that deletes any files with the same file name. You can delete files using php's unlink() but be aware that this can be a big security risk if you don't have proper validation (i.e. someone could delete other files on your server).

Ted Sumner
PLUS
Ted Sumner
Courses Plus Student 17,967 Points
Ted Sumner
Ted Sumner
Courses Plus Student 17,967 Points

Fundamentally, files with the same name but different extensions are different files and I am aware of no systems that will natively do what you want. To the computer, the difference is the same between .jpg and .png as it is between .jpg and .txt. You would have to write a code to compare names and do the replacement. You could write it so it only looked at certain file extensions. The better choice for a web app is only allow certain file types to be uploaded and manually reduce photos from time to time if you really need to.