Trim text, strip shortcodes and excerpt return - Wordpress

custom_trim_excerpt.php

/**
 * Trim text, strip shortcodes and excerpt return 
 * 
 * @param Int $post - Post ID (optional)
 * @param String $text - Text or get_the_conten() (optional)
 * @param Int $words - Number of words to return
 * 
 * @return string - "Ex: This is my text trim and..."
 * 
 * Use: echo custom_trim_excerpt($post_id, '', 20 ); 
 * Use: echo custom_trim_excerpt('', get_the_content(), 20 ); 
 * Use: echo custom_trim_excerpt('', $my_text, 20 ); 
 * Print: "This is my text trim and..."
 */
function custom_trim_excerpt ( $post = null, $text = null, $words = null ) {

    if ( $post ) {
        $content = get_the_content('', false, $post);
    }

    if ( $text ) {
        $content = $text;
    }

    $content = excerpt_remove_blocks( $content );

    $content = apply_filters( 'the_content', $content);

    $content = strip_shortcodes( $content );

    $content = str_replace( ']]>',']]>', $content);

    if ($words) {
        $content = wp_trim_words( $content, $words, '...' );
    }

    return $content;
}

very picante! thanks!