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wp_trim_excerpt ›

Since1.5.0
已弃用n/a
wp_trim_excerpt ( $text = '', $post = null )
参数: (2)
  • (string) $text Optional. The excerpt. If set to empty, an excerpt is generated.
    Required: No
    默认: (empty)
  • (WP_Post|object|int) $post Optional. WP_Post instance or Post ID/object. Default is null.
    Required: No
    默认: null
返回:
  • (string) The excerpt.
定义在:
文档:
Change Log:
  • 5.2.0

Generates an excerpt from the content, if needed.

Returns a maximum of 55 words with an ellipsis appended if necessary.

The 55 word limit can be modified by plugins/themes using the {@see 'excerpt_length'} filter The ' […]' string can be modified by plugins/themes using the {@see 'excerpt_more'} filter



源码

function wp_trim_excerpt( $text = '', $post = null ) {
	$raw_excerpt = $text;
	if ( '' == $text ) {
		$post = get_post( $post );
		$text = get_the_content( '', false, $post );

		$text = strip_shortcodes( $text );
		$text = excerpt_remove_blocks( $text );

		/** This filter is documented in wp-includes/post-template.php */
		$text = apply_filters( 'the_content', $text );
		$text = str_replace( ']]>', ']]>', $text );

		/* translators: Maximum number of words used in a post excerpt. */
		$excerpt_length = intval( _x( '55', 'excerpt_length' ) );

		/**
		 * Filters the maximum number of words in a post excerpt.
		 *
		 * @since 2.7.0
		 *
		 * @param int $number The maximum number of words. Default 55.
		 */
		$excerpt_length = (int) apply_filters( 'excerpt_length', $excerpt_length );

		/**
		 * Filters the string in the "more" link displayed after a trimmed excerpt.
		 *
		 * @since 2.9.0
		 *
		 * @param string $more_string The string shown within the more link.
		 */
		$excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' );
		$text         = wp_trim_words( $text, $excerpt_length, $excerpt_more );
	}

	/**
	 * Filters the trimmed excerpt string.
	 *
	 * @since 2.8.0
	 *
	 * @param string $text        The trimmed text.
	 * @param string $raw_excerpt The text prior to trimming.
	 */
	return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt );
}