代碼如下,運(yùn)行并沒有出錯(cuò),但是就是沒有創(chuàng)建表try{
????$pdo?=?new?PDO('mysql:host:localhost;dbname=test','root','136189');
}?catch(PDOException?$e)?{
????echo?$e->getMessage();
}
$sql=<<<STR
????CREATE?TABLE?IF?NOT?EXISTS?users(
????????id?INT?UNSIGNED?PRIMARY?KEY?AUTO_INCREMENT,
????????username?VARCHAR(20)?UNIQUE?NOT?NULL,
????????password?CHAR(32)?NOT?NULL,
????????email?VARCHAR(30)?NOT?NULL?
????);
STR;
$a?=?$pdo->exec($sql);
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