# 字符串 **汉字转拼音** ``` echo String::pinyin('后盾'); ``` **PHP代码压缩/去空白注释** ``` String::stripWhitespace(file_get_contents('hdphp/hdphp.php')); ``` **全角转半角** ``` echo String::toSemiangle('，“'); ``` **去除标点符号** ``` echo String::removePunctuation('北京后盾网，免费开源框架。'); ``` **utf8转gbk** ``` String::utf8ToGbk("后盾网人人做后盾"); ``` **gbk转utf8** ``` String::gbkToUtf8("后盾网人人做后盾"); ``` **生成随机数** ``` //生成10位随机数 String::rand(10); ```