【下载文档:  Laravel与CI框架中截取字符串函数.txt 】

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Laravel与CI框架中截取字符串函数
Laravel：
function limit($value, $limit = 100, $end = '...')
{
if (mb_strwidth($value, 'UTF-8') <= $limit) {
return $value;
}
return rtrim(mb_strimwidth($value, 0, $limit, '', 'UTF-8')).$end;
}
Ci：
function word_limiter($str, $limit = 100, $end_char = '…')
{
if (trim($str) === '')
{
return $str;
}
preg_match('/^\s*+(?:\S++\s*+){1,'.(int) $limit.'}/', $str, $matches);
if (strlen($str) === strlen($matches[0]))
{
$end_char = '';
}
return rtrim($matches[0]).$end_char;
}