非法字符串偏移量' d1 ' 怎能解决

Question

foreach($post_array as $val){     //组装数据入库,例如:     

$title = $val['d1'];     

$content= $val['t1'];      

$addtime = $val['t2'];     //ignore 忽略主键与唯一ID重复的元素，不出错 

$db = new DB();//查找全部数据

$db->Connect(DBHOST,DBUSER,DBPW,DBNAME);     

$sql1 = "INSERT INTO `phmessage`( `id`, `contect`, `sendtime`, `mobile`) VALUES (null,'".$title."','".$content."','".$addtime."')";  $stmt1 = $db->query($sql1);     

$res = $db->num_rows( $stmt1);  

}    

if($res){      

   die('success');    

}else{      

exit('fail');

Answer 1

$val是数组吗？数组才可以那样用