PHP - 處理數組

Question

假設我有一個如下的數組，我該如何「檢查vid = 2，然後得到/ echo tid」？

Array 
(
    [29] => stdClass Object 
     (
      [tid] => 29 
      [vid] => 2 
      [name] => notebook 
      [description] => 
      [weight] => 0 
      [language] => 
      [trid] => 0 
     ) 

    [97] => stdClass Object 
     (
      [tid] => 97 
      [vid] => 1 
      [name] => DELL 
      [description] => 
      [weight] => 0 
      [language] => 
      [trid] => 0 
     ) 

) 

Answer 1

foreach($vids as $vid){ 
    if($vid->vid == 2){ 
     echo $vid->tid; 
    } 
} 

Answer 2

它應該是：

foreach($tid as $key => $value){ 
    if($value->vid == 2){ 
     echo $value->tid; 
    } 
    }