php - 访问 MySQL 查询的各个部分

Question

如何访问 mysql_query 的特定部分？我试图用下面的代码来做到这一点，但没有成功。任何帮助将不胜感激!

$rs = mysql_query("SELECT id,type FROM stuff WHERE stuffID = '$stuffID'");

   echo $rs['type']; <------ tried here

   // Add the rows to the array 
   while($obj = mysql_fetch_object($rs)) {
   $arr[] = $obj;
   }
 echo $arr['type']; <----- also tried here

Answer 1

在获取该行之前，您无法访问该行。

while($obj = mysql_fetch_object($rs)) {
    // NOTE: $arr[] = $obj, is the same as array_push($arr, $obj),
    // I dont think you want that
    $arr = $obj; // save the row

    echo $obj->type; // you are fetching an object, not an array
}

echo $arr->type;  // you can access it here too