First off I don't condone this type of activity as I'm developer myself but if you must know for education purposes. Or to even make ur plugin more secure.
It's done by aquiring the paid plugin or trial plugin. That u desire an nullifying the link that checks for activation. Usually the quickest way to do this is to do a code search for the plugins callback url which is normally the site u buy the plugin from. Once it's found ull alter the code using php to think it returned the needed value to make it think it's activated.
Now this can only be done on only certain plugins as some plugins when they make the call to a server to check for the license it passes more then just a valid license success code back an return needed code to make the plugin actually function an without it even if u null the plugin it will just break it an the plugi. Still won't work. For such cases you have yo rebuild the broken functions that are missing to null it.
There's also other instances that you can't nullify at all because the code is encrypted uses ioncube or zen. An which case you can try to decrypt the encryption but even then it's not a 100% decryption an ull find urself rebuilding a lot of the missing functions. To make the plugin work.
An in most cases it's much less time consuming to just buy the plugin an reward the maker of the plugin for there hard work
It's done by aquiring the paid plugin or trial plugin. That u desire an nullifying the link that checks for activation. Usually the quickest way to do this is to do a code search for the plugins callback url which is normally the site u buy the plugin from. Once it's found ull alter the code using php to think it returned the needed value to make it think it's activated.
Now this can only be done on only certain plugins as some plugins when they make the call to a server to check for the license it passes more then just a valid license success code back an return needed code to make the plugin actually function an without it even if u null the plugin it will just break it an the plugi. Still won't work. For such cases you have yo rebuild the broken functions that are missing to null it.
There's also other instances that you can't nullify at all because the code is encrypted uses ioncube or zen. An which case you can try to decrypt the encryption but even then it's not a 100% decryption an ull find urself rebuilding a lot of the missing functions. To make the plugin work.
An in most cases it's much less time consuming to just buy the plugin an reward the maker of the plugin for there hard work