刪除關聯數組的一部分

Question

我想搜索一個關聯數組，當我找到一個值時，刪除數組的那一部分。

這裏是我的陣列的樣本：

Array 
(
    [0] => Array 
     (
      [id] => 2918 
      [schoolname] => Albany Medical College 
      [AppService] => 16295C0C51D8318C2 
     ) 

    [1] => Array 
     (
      [id] => 2919 
      [schoolname] => Albert Einstein College of Medicine 
      [AppService] => 16295C0C51D8318C2 
     ) 

    [2] => Array 
     (
      [id] => 2920 
      [schoolname] => Baylor College of Medicine 
      [AppService] => 16295C0C51D8318C2 
     ) 
} 

我想要做的就是找到在AppService價值16295C0C51D8318C2然後刪除陣列的一部分。因此，例如，如果代碼要在上面的數組上運行，那麼由於邏輯匹配該數組中的所有內容，因此它是整個數組中的空白。

這裏是我到目前爲止的代碼：

  foreach($this->schs_raw as $object) { 
       if($object['AppService'] == "16295C0C51D8318C2") { 
        unset($object); 
       } 
     } 

Answer 1

嘗試這樣的：

foreach ($this->schs_raw as &$object) { 
    if($object['AppService'] == "16295C0C51D8318C2") { 
     unset($object); 
    } 
} 

最後：

foreach ($this->schs_raw as $k => $object) { 
    if($object['AppService'] == "16295C0C51D8318C2") { 
     unset($this->schs_raw[$k]); 
    } 
} 

Answer 2

爲什麼不創建一個新的陣列？如果未找到匹配項，請將索引添加到新數組中...如果找到，請不要添加它。你的新陣列將只包含你想要的數據。

Answer 3

試試這個：

foreach($this->schs_raw as $key=>$object) { 
    if($object['AppService'] == "16295C0C51D8318C2") {  
    unset($this->schs_raw[$key]); // unset the array using appropriate index  
    break; // to exit loop after removing first item 
    } 
} 

Answer 4

array_filter將有助於（http://php.net/manual/en/function.array-filter.php）

$yourFilteredArray = array_filter(
    $this->schs_raw, 
    function($var) { 
     return $object['AppService'] != "16295C0C51D8318C2" 
    } 
); 

Answer 5

像這樣的事情？

<?php 

$array = [ 
    0 => [ 
     'id'   => 2918, 
     'schoolname' => 'Albany Medical College', 
     'AppService' => '16295C0C51D8318C2' 
    ], 
    1 => [ 
     'id'   => 2919, 
     'schoolname' => 'Albert Einstein College of Medicine', 
     'AppService' => '16295C0C51D8318C2' 
    ], 
    2 => [ 
     'id'   => 2920, 
     'schoolname' => 'Baylor College of Medicine', 
     'AppService' => '16295C0C51D8318C2' 
    ] 
]; 

foreach ($array as $key => $value) { 
    if ($value['AppService'] === "16295C0C51D8318C2") { 
     unset($array[$key]); 
     break; 
    } 
} 

echo '<pre>'; 
print_r($array);