阿少博客

function truncate_utf8($string, $len, $wordsafe = FALSE, $dots = FALSE) {
$slen = strlen($string);
if ($slen <= $len) {
return $string;
}
if ($wordsafe) {
$end = $len;
while (($string[--$len] != ' ') && ($len > 0)) {};
if ($len == 0) {
$len = $end;
}
}
if ((ord($string[$len]) < 0x80) || (ord($string[$len]) >= 0xC0)) {
return substr($string, 0, $len) . ($dots ? '...' : '');
}
while (--$len >= 0 && ord($string[$len]) >= 0x80 && ord($string[$len]) < 0xC0) {};
return substr($string, 0, $len) . ($dots ? '...' : '');
}

function smarty_modifier_truncate($string, $length = 80, $etc = '...',
$break_words = false)
{
$s=truncate_utf8_($string,$length,$break_words,FALSE);
return $s.$etc;

/*
if ($length == 0)
return '';
if (strlen($string) > $length) {
$length -= strlen($etc);
return __SubStrCn($string, 0, $length).$etc;
} else
return $string;*/
}