Using WordPress ‘is_404()’ PHP function
Determines whether the query has resulted in a 404 (returns no results).
PHP
Using WordPress ‘iso8601_to_datetime()’ PHP function
Given an ISO 8601 (Ymd H:i:sO) date, returns a MySQL DateTime (Y-m-d H:i:s) format used by post_date[_gmt].
Using WordPress ‘in_the_loop()’ PHP function
The article "Using WordPress `in_the_loop()` PHP Function" explains how to use the `in_the_loop()` function in WordPress, including its parameters and examples of usage such as modifying single post entry titles,…
Using WordPress ‘iso8601_timezone_to_offset()’ PHP function
Given an ISO 8601 timezone, returns its UTC offset in seconds.
Using WordPress ‘in_category()’ PHP function
Checks if the current post is within any of the given categories.
Using WordPress ‘install_theme_search_form()’ PHP function
Learn how to use the WordPress 'install_theme_search_form()' PHP function to display a search form for searching themes in the WordPress theme directory
Using WordPress ‘install_theme_information()’ PHP function
Learn how to use the WordPress 'install_theme_information()' PHP function to display theme information in various ways such as a dialog box or on an admin page
Using WordPress ‘install_themes_upload()’ PHP function
Learn how to use the WordPress 'install_themes_upload()' PHP function to display a theme upload form in various ways such as on a custom page or widget
Using WordPress ‘get_the_archive_description()’ PHP function
Retrieves the description for an author, post type, or term archive.