PHP truncates the literal implementation code at a character breakpoint

 
// The so-called hyphenation  (word break) , where a word can be broken when changing lines. This function truncates the string at hyphenation.  
// Please acknowledge use of this code by including this header. 
function myTruncate($string, $limit, $break=".", $pad="...") { 
// return with no change if string is shorter than $limit 
if(strlen($string) <= $limit) 
return $string; 
// is $break present between $limit and the end of the string? 
if(false !== ($breakpoint = strpos($string, $break, $limit))) { 
if($breakpoint < strlen($string) - 1) { 
$string = substr($string, 0, $breakpoint) . $pad; 
} 
} 
return $string; 
} 
/***** Example ****/ 
$short_string=myTruncate($long_string, 100, ' ');