og:image functions.php

Use var_dump($ogimage); to understand the contents of $ogimage presumably it’s returning an array of records from the database.

Generally you would retrieve post meta values with get_post_meta

WordPress Docs for get_post_meta()

Also there are plugins that sort out the og tags for you such as Yoast SEO

Yoast SEO plugin page on WordPress site

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)