Client side validation is not required but would be helpful for user experience. For sanitizing and validation in server is a must. you can always use the sanitation and validation in your ajax callback, I don’t see any reason to not do it. check ajax referer is only to prevent cross domain request by checking the nonce provided. this function not help you with sanitizing and validating data send through ajax.
I love the old one, it’s easier to find menu
Working with WPML is not that difficult, for example in theme options you only need to specify the wpml-config.xml with the settings key name. Would suggest to read about wpml config
Thank you very much guys
Hi Guys, I just finish my interview and got a full time job, but there are lots of new things in my new job since I will be working with Joomla not WP anymore
Congrats Man! wish you a happy married life.
Images such as game covers, brand logo is not permitted in your PSD files. since you never own the rights to distribute it but you can use it only in your item preview.