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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
666 | if ( current_user_can( 'update_languages' ) ) { |
667 | list_translation_updates(); |
668 | } |
669 |
|
670 | /** |
671 | * Fires after the core, plugin, and theme update tables. |
672 | * |
673 | * @since 2.9.0 |
674 | */ |
675 | do_action( 'core_upgrade_preamble' ); |
676 | echo '</div>'; |
677 |
|
678 | wp_localize_script( |
679 | 'updates', |
680 | '_wpUpdatesItemCounts', |
681 | array( |
682 | 'totals' => wp_get_update_data(), |
683 | ) |
684 | ); |