elipsize.php

<?php

if ( ! function_exists('ellipsize'))
{
	/**
	 * Ellipsize String
	 *
	 * This function will strip tags from a string, split it at its max_length and ellipsize
	 *
	 * @param	string	string to ellipsize
	 * @param	int	max length of string
	 * @param	mixed	int (1|0) or float, .5, .2, etc for position to split
	 * @param	string	ellipsis ; Default '...'
	 * @return	string	ellipsized string
	 */
	function ellipsize($str, $max_length, $position = 1, $ellipsis = '&hellip;')
	{
		// Strip tags
		$str = trim(strip_tags($str));

		// Is the string long enough to ellipsize?
		if (strlen($str) <= $max_length)
		{
			return $str;
		}

		$beg = substr($str, 0, floor($max_length * $position));
		$position = ($position > 1) ? 1 : $position;

		if ($position === 1)
		{
			$end = substr($str, 0, -($max_length - strlen($beg)));
		}
		else
		{
			$end = substr($str, -($max_length - strlen($beg)));
		}

		return $beg.$ellipsis.$end;
	}
}