webp - Failed to call dwebp in PHP

Question

I have installed webp package in my server and i want to use "dwebp" command in my PHP application.

My command is simple, it is like

dwebp "/full/path/test.webp" -o "/full/path/test.png"

If i run it from SSH terminal, it is 100% succesful.

But that command can't be run from PHP.

I have tried to use system(), passthru(), exec(). All failed which means the PNG file is not created.

However these commands succesfully called from PHP :

• touch. If i use this, the created file is under "apache" owner.
• ls -la

I have tried to change the directory permission from 777 / 775 / 755.

Using passthru, the result from calling from PHP is empty string.

• In php.ini, disable_functions is empty
• No error message, error_reporting is on.

Answer 1

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