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Function Reference/the category « WordPress Codex

    https://codex.wordpress.org/Function_Reference/the_category
    Interested in functions, hooks, classes, or methods? Check out the new WordPress Code Reference!

Category:About WordPress « WordPress Codex

    https://codex.wordpress.org/Category:About_WordPress
    Category:About WordPress. "WordPress was born out of a desire for an elegant, well-architectured personal publishing system built on PHP and MySQL and licensed under the GPL. It is the official successor of b2/cafelog. WordPress is fresh software, but its roots and development go back to 2001. It is a mature and stable product.

Main Page « WordPress Codex

    https://codex.wordpress.org/
    Check out the new WordPress Code Reference! Main Page Welcome to the WordPress Codex , the online manual for WordPress and a living repository for WordPress …

in_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/in_category/
    The given categories are checked against the post’s categories’ term_ids, names and slugs. Categories given as integers will only be checked against the post’s categories’ term_ids. Prior to v2.5 of WordPress, category names were not supported. Prior to v2.7, category …

get_the_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/get_the_category/
    Make the first category link to the category page: $categories = get_the_category(); if ( ! empty( $categories ) ) { echo '<a href="' . esc_url( get_category_link( $categories[0]->term_id ) ) . '">' . esc_html( $categories[0]->name ) . '</a>'; }

the_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/the_category/
    the_category (string $separator = '', string $parents = '', int $post_id = false) Displays category list for a post in either HTML list or custom format.

is_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/is_category/
    is_category( array( 9, 'blue-cheese', 'Stinky Cheeses' ) ); // Returns true when the category of posts being displayed is either term_ID 9, // or slug "blue-cheese", or name "Stinky Cheeses". // Note: the array ability was added in version 2.5.

has_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/has_category/
    if you want to check specific category is set for this post. if (has_category('Category_name',$post->ID)) If you want to use it in The Loop, you don’t need to specify the ID. if (has_category('Category_name')) Check multiple category: if(has_category(array('category_name_1', 'category_name_2')))
    [CATITEMSBL#1]

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