Trim text

trim-text.php

<?php 
/**
 * Strip then trim a text around the cut $cut_length
 * 
 * @param string $text
 * @param int    $cut_length
 *
 * @author Maxime CULEA
 *
 * @return string
 */
public function trim_text( $text, $cut_length = 70 ) {
	// Strips tags and images
	$excerpt = strip_tags( strip_shortcodes( $text ) );

	// If length bigger than $cut_length, cut it to the closest word and add " ..." characters
	if ( $cut_length <= strlen( $excerpt ) ) {
		// Add a special word near $cut_length carac's closest word
		$excerpt = wordwrap( $excerpt, $cut_length, '*cutme*' );
		// Cut into 2 parts with the special word
		$excerpt = explode( '*cutme*', $excerpt );
		// Reuse only the first part, which means first $cut_length words
		$excerpt = sprintf( '%s ...', $excerpt[0] );
	}

	return $excerpt;
}