<?php 

if ( ! function_exists( 'pft_custom_limit_words' ) ) :

	/**
	 * Returns post excerpt.
	 *
	 * @since 1.0.0
	 *
	 * @param int     $length      Excerpt length in words.
	 * @param WP_Post $post_object The post object.
	 * @return string Post excerpt.
	 */
	function pft_custom_limit_words( $length = 0, $post_object = null ) {
		global $post;

		if ( is_null( $post_object ) ) {
			$post_object = $post;
		}

		$length = absint( $length );
		if ( 0 === $length ) {
			return;
		}

		$source_content = $post_object->post_content;

		if ( ! empty( $post_object->post_excerpt ) ) {
			$source_content = $post_object->post_excerpt;
		}

		$source_content = strip_shortcodes( $source_content );
		$trimmed_content = wp_trim_words( $source_content, $length, '...' );
		return $trimmed_content;
	}

endif;