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Understanding Source Code

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Line Code
3304  */
3305 function wp_trim_excerpt( $text = '' ) {
3306      $raw_excerpt = $text;
3307      if ( '' == $text ) {
3308           $text = get_the_content('');
3309
3310           $text = strip_shortcodes( $text );
3311
3312           /** This filter is documented in wp-includes/post-template.php */
3313           $text = apply_filters( 'the_content', $text );
3314           $text = str_replace(']]>', ']]>', $text);
3315
3316           /**
3317            * Filters the number of words in an excerpt.
3318            *
3319            * @since 2.7.0
3320            *
3321            * @param int $number The number of words. Default 55.
3322            */