循环和合并，如果有相同的密钥

Array ([0] => Array ([field_airline] => 18 [title] => FGGH [field_route_location] => Hongkong [field_time] => 01:10) 
     [1] => Array ([field_airline] => 19 [title] => DSSA [field_route_location] => Kuala Lumpur [field_time] => 01:10), 
     [2] => Array ([field_airline] => 19 [title] => ASAS [field_route_location] => Kuala Lumpur [field_time] => 01:10) 
)

合并结果我想循环和合并，如果有相同的密钥

Array ([0] => Array ([field_airline] => 18 [title] => FGGH [field_route_location] => Hongkong [field_time] => 01:10), 
     [1] => Array ([field_airline] => 19 [title] => array(DSSA,ASAS) [field_route_location] => Kuala Lumpur [field_time] => 01:10) 
)

我想

<?php 

$a= Array (0 => Array ('field_airline' => 18 , 
         'title' => 'FGGH', 
         'field_route_location' => 'Hongkong', 
         'field_time' => '01:10' 
       ), 
      1 => Array ('field_airline' => 19 , 
         'title' => 'DSSA', 
         'field_route_location' => 'Kuala Lumpur', 
         'field_time' => '01:10' 
         ), 
      2 => Array ('field_airline' => 19, 
         'title' => 'ASAS', 
         'field_route_location' => 'Kuala Lumpur', 
         'field_time' => '01:10' 
        ) 
    ); 
$b = array(); 
foreach ($a as $key=>$value){ 
    $b[$value['field_route_location']][] = $value; 
} 
echo '<pre>'; 
print_r($b); 
echo '</pre>'; 
?>

来源

2013-08-02 kn3l

我想你要删除从阵列 – cartina

重复的值不不重复[标题] =>数组（DSSA，ASAS） – kn3l

所以如果field_airline是重复的，我们需要合并标题，位置等？ – cartina

function sortByLocation($a, $b) 
{ 
    return strcmp($a["field_route_location"], $b["field_route_location"]); 
} 

$a = Array(
    0 => Array('field_airline' => 18, 
     'title' => 'FGGH', 
     'field_route_location' => 'Hongkong', 
     'field_time' => '01:10' 
    ), 
    1 => Array('field_airline' => 19, 
     'title' => 'DSSA', 
     'field_route_location' => 'Kuala Lumpur', 
     'field_time' => '01:10' 
    ), 
    2 => Array('field_airline' => 19, 
     'title' => 'ASAS', 
     'field_route_location' => 'Kuala Lumpur', 
     'field_time' => '01:10' 
    ) 
); 

usort($a, 'sortByLocation'); // sorting array by location 

$b = array(); 

foreach ($a as $key => $value) 
{ 
    $title = array(); 

    if (!isset($b[$value['field_route_location']])) 
     $b[$value['field_route_location']] = $value; 
    else 
    { 
     if (!is_array($b[$value['field_route_location']]['title'])) 
      array_push($title, $b[$value['field_route_location']]['title']); 
     else 
      $title = $b[$value['field_route_location']]['title']; 

     array_push($title, $a[$key]['title']); 
     $b[$value['field_route_location']]['title'] = $title; 
    } 
} 
echo '<pre>'; 
print_r($b); 
echo '</pre>';

输出

Array 
(
    [Hongkong] => Array 
     (
      [field_airline] => 18 
      [title] => FGGH 
      [field_route_location] => Hongkong 
      [field_time] => 01:10 
     ) 

    [Kuala Lumpur] => Array 
     (
      [field_airline] => 19 
      [title] => Array 
       (
        [0] => ASAS 
        [1] => DSSA 
       ) 

      [field_route_location] => Kuala Lumpur 
      [field_time] => 01:10 
     ) 

)

来源

2013-08-02 05:29:57

foreach ($a as $ka=>&$va) 
{ 
    foreach ($a as $kb=>$vb) 
    { 
     if ($va['field_airline'] == $vb['field_airline'] && $ka != $kb) 
     { 
      if (is_array($va['title'])) 
      { 
       $va['title'][] = $vb['title']; 
      } 
      else 
      { 
       $va['title'] = array($va['title'], $vb['title']); 
      } 
      // repeat if/else with the other fields if needed 
      unset($a[$kb]); 
     } 
    } 
}

来源

2013-08-02 05:23:28 ironcito

理念：

创建空白结果数组。遍历给定的数据。对于每个项目，如果它不在结果数组中，请按下它。如果确实存在，请将项目的title推送到该field_airline元素的结果数组。

代码：

$array_result = array(); 

if (! empty($array)){ 
    foreach($array as $item){ 
     // item already exists in results 
     if (isset($array_result[$item['field_airline']])){ 
      // prepare title 
      $title = $array_result[$item['field_airline']]['title']; 
      $title[] = $item['title']; // push into existing array 
      // replace array of titles 
      $array_result[$item['field_airline']]['title'] = $title; 
     } 
     // encountering for first time 
     else{ 
      $array_result[$item['field_airline']] = array(
       'field_airline' => $item['field_airline'], 
       'title' => array($item['title']), 
       'field_route_location' => $item['field_route_location'], 
       'field_time' => $item['field_time'], 
      );   
     } 
    } 
} 

$array_result = array_values($array_result); // reset the keys in results

测试代码：

$array = array(
     array(
      'field_airline' => 18, 
      'title' => 'FGGH', 
      'field_route_location' => 'Hongkong', 
      'field_time' => '01:10', 
     ), 
     array(
      'field_airline' => 19, 
      'title' => 'DSSA', 
      'field_route_location' => 'Kuala Lumpur', 
      'field_time' => '01:10', 
     ), 
     array(
      'field_airline' => 19, 
      'title' => 'ASAS', 
      'field_route_location' => 'Kuala Lumpur', 
      'field_time' => '01:10', 
     ), 
    );

来源

2013-08-02 05:25:47

试试这个。

<?php 
$arr=array('0' => array('field_airline' => 18, 
           'title' => 'FGGH', 
           'field_route_location' => 'Hongkong', 
           'field_time' => '01:10'), 

        '1' => array('field_airline' => 19, 
           'title' => 'DSSA', 
           'field_route_location' => 'Kuala Lumpur', 
           'field_time' => '01:10'), 

        '2' => array('field_airline' => 19, 
           'title' => 'ASAS', 
           'field_route_location' => 'Test', 
           'field_time' => '01:10') 
); 


$final=array(); 

$uniqkeys=array(); // to check for unique field_airline 
foreach($arr as $key => $subarr) 
{ 
    if(!in_array($subarr['field_airline'],$uniqkeys)) 
    { 
    $uniqkeys[]=$subarr['field_airline']; 
    $final[$subarr['field_airline']]= $subarr; 
    } 
    else 
    { 
    // Check if title is not same, add title to array 
    if($final[$subarr['field_airline']]['title'] != $subarr['title']) 
    { 
     $final[$subarr['field_airline']]['title']=array(
     $final[$subarr['field_airline']]['title'], $subarr['title']); 
    } 
    //Check for location 
    if($final[$subarr['field_airline']]['field_route_location'] != $subarr['field_route_location']) 
    { 
     $final[$subarr['field_airline']]['field_route_location']=array(
     $final[$subarr['field_airline']]['field_route_location'], $subarr['field_route_location']); 
    } 

// Check for filed time 
    if($final[$subarr['field_airline']]['field_time'] != $subarr['field_time']) 
    { 
     $final[$subarr['field_airline']]['field_time']=array(
     $final[$subarr['field_airline']]['field_time'], $subarr['field_time']); 
    } 

    } 
} 

print_r($final); 

?>

查看这里的工作示例（http://codepad.org/UkOZq9gy）。

来源

2013-08-02 05:29:34 cartina

循环和合并，如果有相同的密钥

回答

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