<?phpheader('count-type:text/html');$link=@mysqli_connect('localhost','root','','',3306);if(mysqli_connect_errno()){?exit(mysqli_connect_error());}mysqli_set_charset($link,'utf-8');mysqli_select_db($link,'b');$query='insert into t1(name) values("孫勝利")';var_dump(mysqli_query($link,$query));mysqli_close($link);?>id是主鍵，b是數(shù)據(jù)庫名字，沒有密碼，最后執(zhí)行時怎么是false，有啥問題，問題在哪，求大神指出