Docs: Added description for global $wpdb

[mukesh27]

In many core files document of global $wpdb id not added.

[mukesh27]

Patch.

[SergeyBiryukov]

Hi @mukesh27, thanks for the patch!

When adding the description for $wpdb in DocBlocks that have other global variables ($wp_query, $wp_locale, etc.), I think it would be a good idea to document those variables as well for consistency.

[mukesh27]

Updated patch.

[mukesh27]

@SergeyBiryukov, updated patch for global WP_Screen, wp_locale, wp_query and wpdb.

[SergeyBiryukov]

#45772 was marked as a duplicate.

[SergeyBiryukov]

#46891 was marked as a duplicate.

[SergeyBiryukov]

In 45734:

Docs: Add missing description for $wpdb, $wp_db_version, and $wp_current_db_version globals.

Props mukesh27, utsav72640, immeet94, SergeyBiryukov.
See #45604.

[SergeyBiryukov]

In 45735:

Docs: Add missing description for $wp_rewrite global.

See #45604, #47110.

[SergeyBiryukov]

In 45736:

Docs: Add missing description for $wp global.

See #45604, #47110.

[SergeyBiryukov]

In 45737:

Docs: Add missing description for $wp_locale global.

Props mukesh27.
See #45604, #47110.

[SergeyBiryukov]

In 45738:

Docs: Add missing description for $wp_locale_switcher global.

See #45604, #47110.

[SergeyBiryukov]

In 45739:

Docs: Add missing description for $wp_query and $wp_the_query globals.

Props mukesh27.
See #45604, #47110.

[SergeyBiryukov]

In 45740:

Docs: Add missing description for $current_screen global.

Props mukesh27.
Fixes #45604. See #47110.

[valentinbora]

#41478 was marked as a duplicate.