foreachの未定義のインデックス

Question

アム、私は以下の配列を取得しますが

「お知らせ：未定義のインデックス：名」取得しています私は走った

エラーを、ループ、何が間違っているの？ は親切

Array 
(
[0] => Array 
    (
     [0] => Array 
      (
       [ID] => 1 
       [name] => Paul 
       [email] => 32 
      ) 

     [1] => Array 
      (
       [ID] => 2 
       [name] => Allen 
       [email] => 25 
      ) 

     [2] => Array 
      (
       [ID] => 3 
       [name] => Teddy 
       [email] => 23 
      ) 

     [3] => Array 
      (
       [ID] => 4 
       [name] => 4 
       [email] => Mark 
      ) 

     [4] => Array 
      (
       [ID] => 5 
       [name] => Paul 
       [email] => 32 
      ) 

     [5] => Array 
      (
       [ID] => 6 
       [name] => Allen 
       [email] => 25 
      ) 

     [6] => Array 
      (
       [ID] => 7 
       [name] => Teddy 
       [email] => 23 
      ) 

     [7] => Array 
      (
       [ID] => 8 
       [name] => 4 
       [email] => Mark 
      ) 

     [8] => Array 
      (
       [ID] => 9 
       [name] => Paul 
       [email] => 32 
      ) 

     [9] => Array 
      (
       [ID] => 10 
       [name] => Allen 
       [email] => 25 
      ) 

     [10] => Array 
      (
       [ID] => 11 
       [name] => Teddy 
       [email] => 23 
      ) 

     [11] => Array 
      (
       [ID] => 12 
       [name] => 4 
       [email] => Mark 
      ) 

     [12] => Array 
      (
       [ID] => 13 
       [name] => Paul 
       [email] => 32 
      ) 

     [13] => Array 
      (
       [ID] => 14 
       [name] => Allen 
       [email] => 25 
      ) 

     [14] => Array 
      (
       [ID] => 15 
       [name] => Teddy 
       [email] => 23 
      ) 

     [15] => Array 
      (
       [ID] => 16 
       [name] => 4 
       [email] => Mark 
      ) 

     [16] => Array 
      (
       [ID] => 17 
       [name] => Paul 
       [email] => ibraq22@yahooo.com 
      ) 

     [17] => Array 
      (
       [ID] => 18 
       [name] => Opeyemi Adam 
       [email] => resfvr@yahoo.com 
      ) 

     [18] => Array 
      (
       [ID] => 19 
       [name] => Opeyemi Adam 
       [email] => info@ckdigital.net 
      ) 

     [19] => Array 
      (
       [ID] => 20 
       [name] => Paul 
       [email] => ibraq22@yahooo.com 
      ) 

    ) 

) 

私のPHPループ

foreach ($retr as $page) { 
     echo $page['name']; 
     //var_dump($page); 
    } 

よろしく

Answer 1

あなたの配列は、多次元でさらに19個の要素を含む単一要素の配列であることを下回っているのに役立ちます。その後、

あなただけの子要素をitterateしたい場合は、トップレベルのelelemtではなく、親配列をループを実行します。

foreach ($retr[0] as $page) {...}