Alternative to finfo PHP class/extension deprecated in current host

Dear All We need to modify our the PHP code of a specific addon we have to overcome the current dealock we are in. We are using an open source script that needs the PHP extension/class called: finfo PECL Unfortunately our current host can't implement this deprecated class/extension as we are on a shared hosting environment. So we need to tweak our current open source script's code to use an alternative function/extension to achieve the same result. Within this CMS script there is a module to edit/modify images online (pixlr api) and at the moment of saving the file into the host this missing extension is called to do some check on the file name/format before saving it the host's hard drive. I have seen some solutions/discussions about similar problems here under [login to view URL] [login to view URL] [login to view URL] A work around: [login to view URL] Thank you in advance for your input