展望凝聚与多个foreach循环（PHP，SQLite的）

Question

我有一个分析，并与INSERT OR IGNORE加上UPDATE查询进入我的数据库JSON FILE一份准备好的声明。该JSON被分成“守门员”，“向前”和“防守队员”，所以我落得这样做的：

try { 
     $db = new PDO('connection stuff'); 
     $db->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION); 
    } catch (Exception $e) { 
     echo "Error: Could not connect to database. Please try again later."; 
     exit; 
    } 
    $json = file_get_contents('http://nhlwc.cdnak.neulion.com/fs1/nhl/league/teamroster/SJS/iphone/clubroster.json'); 
    $json = json_decode($json, TRUE); 

    $goalie = $json['goalie']; 
    $defensemen = $json['defensemen']; 
    $forwards = $json['forwards']; 

    $query = "INSERT OR IGNORE INTO roster2015_2016 ('position','id','weight','height','imageURL','birthplace','age','name','birthdate','number') 
       VALUES (:position, :id, :weight, :height , :imageURL, :birthplace , :age , :name , :birthdate , :number)"; 
    $prepare = $db->prepare($query); 

    $query2 = "UPDATE roster2015_2016 
       SET position= :position, id= :id, weight= :weight, height= :height, imageURL= :imageURL, birthplace= :birthplace, age= :age, name= :name, 
          birthdate= :birthdate, number= :number 
       WHERE id= :id"; 
    $prepare2 = $db->prepare($query2); 

    foreach ($goalie as $pd) { 
     $a = array (':position' => $position = $pd['position'], 
           ':id' => $id = $pd['id'], 
           ':weight' => $weight = $pd['weight'], 
           ':height' => $height = $pd['height'], 
           ':imageURL' => $imageURL = $pd['imageUrl'], 
           ':birthplace' =>$birthplace = $pd['birthplace'], 
           ':age' => $age = $pd['age'], 
           ':name' => $name = $pd['name'], 
           ':birthdate' => $birthdate = $pd['birthdate'], 
           ':number' => $number = $pd['number']); 

     $prepare->execute($a); 
     $prepare2->execute($a); 
    } 

     foreach ($defensemen as $pd) { 
     $a = array (':position' => $position = $pd['position'], 
           ':id' => $id = $pd['id'], 
           ':weight' => $weight = $pd['weight'], 
           ':height' => $height = $pd['height'], 
           ':imageURL' => $imageURL = $pd['imageUrl'], 
           ':birthplace' =>$birthplace = $pd['birthplace'], 
           ':age' => $age = $pd['age'], 
           ':name' => $name = $pd['name'], 
           ':birthdate' => $birthdate = $pd['birthdate'], 
           ':number' => $number = $pd['number']); 

     $prepare->execute($a); 
     $prepare2->execute($a); 
    } 

     foreach ($forwards as $pd) { 
     $a = array (':position' => $position = $pd['position'], 
           ':id' => $id = $pd['id'], 
           ':weight' => $weight = $pd['weight'], 
           ':height' => $height = $pd['height'], 
           ':imageURL' => $imageURL = $pd['imageUrl'], 
           ':birthplace' =>$birthplace = $pd['birthplace'], 
           ':age' => $age = $pd['age'], 
           ':name' => $name = $pd['name'], 
           ':birthdate' => $birthdate = $pd['birthdate'], 
           ':number' => $number = $pd['number']); 

     $prepare->execute($a); 
     $prepare2->execute($a); 
    } 

正如你所看到的，我做同样的事情，3次在一排（1进攻，防守和守门员）。我试图使用一个&&运营商，并只做一个foreach循环，但我想你是不允许这样做的。那次失败的尝试是有人可以将我链接到一个资源，让我快速了解该做什么？我尝试了几次Google和Stack Overflow搜索，但找不到我在找的内容。 Here is a link to my roster output。不要担心滚动到查询的权利，这是工作得很好。

Answer 1

试试这个

$json = file_get_contents('http://nhlwc.cdnak.neulion.com/fs1/nhl/league/teamroster/SJS/iphone/clubroster.json'); 
$json = json_decode($json, TRUE); 
$resultArray = array(); 


$goalie = array(); 
if (is_array($json['goalie']) && count($json['goalie']) > 0) { 
    $goalie = $json['goalie']; 
} 

$defensemen = array(); 
if (is_array($json['defensemen']) && count($json['defensemen']) > 0) { 
    $defensemen = $json['defensemen']; 
} 
$resultArray = array_merge($goalie, $defensemen); 

$forwards = array(); 
if (is_array($json['forwards']) && count($json['forwards']) > 0) { 
    $forwards = $json['forwards']; 
} 

$resultArray = array_merge($resultArray, $forwards); 

foreach ($resultArray as $pd) { 
    $a = array(':position' => $position = $pd['position'], 
     ':id' => $id = $pd['id'], 
     ':weight' => $weight = $pd['weight'], 
     ':height' => $height = $pd['height'], 
     ':imageURL' => $imageURL = $pd['imageUrl'], 
     ':birthplace' => $birthplace = $pd['birthplace'], 
     ':age' => $age = $pd['age'], 
     ':name' => $name = $pd['name'], 
     ':birthdate' => $birthdate = $pd['birthdate'], 
     ':number' => $number = $pd['number']); 

    $prepare->execute($a); 
    $prepare2->execute($a); 
}