/**
* 拆分字符串
* @param type $string 要拆分的字符
* @param type $source_charset 输入字符的字符编码
* @param type $target_charset 输出字符的字符编码
* @return array 拆分后的字符以数组形式返回，键名为字符，键值为字符数量
*/
public static function split_word($string, $source_charset = '', $target_charset = 'utf-8', $load_all = TRUE)
{
$charset = C("CHARSET");
$source_charset = empty($source_charset) ? preg_replace("/utf8|utf-8/i", "utf-8", $charset) : $source_charset;
self::$addonDicFile = PATH_ORG . str_replace(PATH_ORG, '', self::$addonDicFile);
self::$mainDicFileZip = PATH_ORG . str_replace(PATH_ORG, '', self::$mainDicFileZip);
self::$mainDicFile = PATH_ORG . str_replace(PATH_ORG, '', self::$mainDicFile);
self::SetSource($string, $source_charset, $target_charset);
self::$isLoadAll = $load_all;
if (file_exists(self::$mainDicFile)) {
self::$isUnpacked = TRUE;
}
if (self::$loadInit) {
self::LoadDict();
}
self::StartAnalysis();
$string = self::GetFinallyIndex();
if (is_array($string)) {
$s = array();
foreach ($string as $k => $v) {
$k = string::remove_punctuation($k);
if (empty($k) || mb_strlen($k, $source_charset) == 1) {
continue;
}
$s[$k] = $v;
}
$string = $s;
}
return $string;
}
