PHP: Couple of yummy truncate functions.

PHP truncate functions

/**
 * truncate_words function to truncate a string of words to a specified number of words
 * @param string $str The text string to split
 * @param integer $words The number of words to extract. Defaults to 15
 */
function truncate_words( $str, $words = 15 ) 
{
	$arr = preg_split( '/[\s]+/', $str, $words+1 );
	$arr = array_slice( $arr, 0, $words );
	return join( ' ', $arr ) . '…';
}

/**
 * truncate_chars function to truncate a string of chars to a specified number of chars
 * @param string $str The text string to split
 * @param integer $chars The number of chars to extract. Defaults to 15
 */
function truncate_chars( $chars, $len = 15 ) 
{
	$i = strlen($chars);
	if($i <= $len)
	{
		return $chars;
	}
	$chars = substr($chars, 0, $len);
	return $chars . '&hellip;';
}

PHP: truncate functions

/**
 * truncate_words function to truncate a string of words to a specified number of words
 * @param string $str The text string to split
 * @param integer $words The number of words to extract. Defaults to 15
 */
function truncate_words( $str, $words = 15 ) 
{
	$arr = preg_split( '/[\s]+/', $str, $words+1 );
	$arr = array_slice( $arr, 0, $words );
	return join( ' ', $arr ) . '…';
}

/**
 * truncate_chars function to truncate a string of chars to a specified number of chars
 * @param string $str The text string to split
 * @param integer $chars The number of chars to extract. Defaults to 15
 */
function truncate_chars( $chars, $len = 15 ) 
{
	$i = strlen($chars);
	if($i <= $len)
	{
		return $chars;
	}
	$chars = substr($chars, 0, $len);
	return $chars . '&hellip;';
}

Added some default checks.