Warning: This function has been deprecated. Use get_the_category() instead.

the_category_ID ( bool $echo = true )

Returns or prints a category ID.

Return: (int) Category ID.

Source file: wp-includes/deprecated.php

View source



(bool) (Optional) Whether to echo the output.

Default value: true

Used by


function the_category_ID($echo = true) {
	_deprecated_function( __FUNCTION__, '0.71', 'get_the_category()' );

	// Grab the first cat in the list.
	$categories = get_the_category();
	$cat = $categories[0]->term_id;

	if ( $echo )
		echo $cat;

	return $cat;


  • Since: WordPress 0.71

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