WordPress函数：single_term_title

一、函数简介

single_term_title该函数的作用是显示或检索分类术语存档的页面标题。（Displays or retrieves page title for taxonomy term archive.）  

二、函数参数

* @param string $prefix Optional. What to display before the title. * @param bool $display Optional. Whether to display or retrieve title. Default true. * @return string|void Title when retrieving.  

三、函数案例

（一）、案例1

<?php echo single_term_title( $prefix = '', $display = true ) ?>

   

四、源代码

/**
 * Displays or retrieves page title for taxonomy term archive.
 *
 * Useful for taxonomy term template files for displaying the taxonomy term page title.
 * The prefix does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 3.1.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|void Title when retrieving.
 */
function single_term_title( $prefix = '', $display = true ) {
	$term = get_queried_object();

	if ( ! $term ) {
		return;
	}

	if ( is_category() ) {
		/**
		 * Filters the category archive page title.
		 *
		 * @since 2.0.10
		 *
		 * @param string $term_name Category name for archive being displayed.
		 */
		$term_name = apply_filters( 'single_cat_title', $term->name );
	} elseif ( is_tag() ) {
		/**
		 * Filters the tag archive page title.
		 *
		 * @since 2.3.0
		 *
		 * @param string $term_name Tag name for archive being displayed.
		 */
		$term_name = apply_filters( 'single_tag_title', $term->name );
	} elseif ( is_tax() ) {
		/**
		 * Filters the custom taxonomy archive page title.
		 *
		 * @since 3.1.0
		 *
		 * @param string $term_name Term name for archive being displayed.
		 */
		$term_name = apply_filters( 'single_term_title', $term->name );
	} else {
		return;
	}

	if ( empty( $term_name ) ) {
		return;
	}

	if ( $display ) {
		echo $prefix . $term_name;
	} else {
		return $prefix . $term_name;
	}
}