我的代码没有将 sql 导入数据库

Question

$model_1="ticketdokan";
$view_1="false";
$sqlfile3="insert into notification_user values(NULL,:uid,:model,:text,:time,:view)";
$resfile3=$connect->prepare($sqlfile3); 
$resfile3->bindparam(":uid",$fet_buyer['id']);
$resfile3->bindparam(":model",$model_1);
$resfile3->bindparam(":text",$url[2]);
$resfile3->bindparam(":time",$time);        
$resfile3->bindparam(":view",$view_1);
$resfile3->execute();
$resfi4=$resfile3->errorinfo();
var_dump($resfi4);

这段代码哪里出了问题？我的代码没有将sql导入数据库