AmMrWu

摘要： <?php/* * php string @mrwu */$str=' let us learn php string';//format$str=trim($str);//clear blankecho "after trim str=$str <br/>";$str='this is <br/> a test';$str=nl2br($str);//<br/> to /necho "after nl2br str=$str <br/>";printf('my 阅读全文