Outside the Loop or out of the context of the post, such as in the header or the footer and even sidebar area in WordPress templates, the_ID() cannot be used as a function. Instead, $post->ID is used to return the post ID. $post is a global object that holds various information about the posts displayed on the page.
Passionate G(r)eek with experience in digital analytics projects and website implementation. Fan of clear and effective processes, automation of tasks and problem-solving technical hacks. Hands-on experience with projects ranging from small to enterprise-level companies, starting from the communication with the customers and ending with the transformation of business requirements to the final deliverable.
