[英]Array Merge from multidimensional Array
我想將多維數組合並為單個數組。 我想知道是否有任何php built in array_function
來做到這一點。 我不想使用任何循環,因為我有導入文件中的數據。 可能有超過數千條記錄。
我在此代碼下方生成此數組:
$insert = array();
foreach ($data as $key => $value) {
$insert[$key][] = [
'name' => $value->name,
'email' => $value->email,
'mobile_no' => $value->mobile_no,
'password' => bcrypt($value->password),
'user_type_id' => $value->user_type_id,
'designation' => $value->designation,
$this->userTypeWiseFieldGenerateForImportInsert($value)
];
}
我的回調函數是
public function userTypeWiseFieldGenerateForImportInsert($data){
if($data->user_type_id == 1){
$insertArray['market_code'] = $data->market_code;
$insertArray['product_code'] = $data->product_code;
$insertArray['territori_code'] = $data->territori_code;
$insertArray['region_code'] = $data->region_code;
$insertArray['division_code'] = $data->division_code;
}elseif($data->user_type_id == 2){
$insertArray['territori_code'] = $data->territori_code;
$insertArray['region_code'] = $data->region_code;
$insertArray['division_code'] = $data->division_code;
}elseif($data->user_type_id == 3){
$insertArray['region_code'] = $data->region_code;
$insertArray['division_code'] = $data->division_code;
}elseif($data->user_type_id == 4){
$insertArray['division_code'] = $data->division_code;
}
return $insertArray;
}
我得到這個數組:
Array(
[0] => Array
(
[name] => Md. XXXX
[email] => abc@gmail.com
[mobile_no] => 1751017812
[password] => $2y$10$6Vmr61t896IxfJ1A0pxX5Of1hnfUVX9blmdmclAxt56cMd754NkDC
[user_type_id] => 1
[designation] => Sr. Software Engineer
[0] => Array
(
[market_code] => mirpurA203
[product_code] => Seclo201
[territori_code] => T352
[region_code] => Mirpur334
[division_code] => Dhaka31
)
)
[1] => Array
(
[name] => Md. XX
[email] => def@gmail.com
[mobile_no] => 1761017812
[password] => $2y$10$62fwqiAmrv.Jc89i5L3YNuMpcYeFVrpqewuBPKYIgmXiX/9sGRC/S
[user_type_id] => 2
[designation] => Sr. Software Engineer
[0] => Array
(
[territori_code] => T352
[region_code] => Mirpur334
[division_code] => Dhaka31
)
)
)
我期望制作單個數組,例如:
Array(
[0] => Array
(
[name] => Md. XXXX
[email] => abc@gmail.com
[mobile_no] => 1751017812
[password] => $2y$10$6Vmr61t896IxfJ1A0pxX5Of1hnfUVX9blmdmclAxt56cMd754NkDC
[user_type_id] => 1
[designation] => Sr. Software Engineer
[market_code] => mirpurA203
[product_code] => Seclo201
[territori_code] => T352
[region_code] => Mirpur334
[division_code] => Dhaka31
)
[1] => Array
(
[name] => Md. XX
[email] => def@gmail.com
[mobile_no] => 1761017812
[password] => $2y$10$62fwqiAmrv.Jc89i5L3YNuMpcYeFVrpqewuBPKYIgmXiX/9sGRC/S
[user_type_id] => 2
[designation] => Sr. Software Engineer
[territori_code] => T352
[region_code] => Mirpur334
[division_code] => Dhaka31
)
)
像這樣的事情可以解決問題:
function flatten($arr){
$res = [];
foreach($arr as $k=>$v){
if(is_array($v)){
$res= array_merge($res, $v);
}else{
$res[$k]=$v;
}
}
return $res;
};
$arr = ['one','two', 'three', ['four','five']];
print_r(test($arr));
// Output: Array ( [0] => one [1] => two [2] => three [3] => four [4] => five )
希望這可以幫助,
要修復您的原始導入...
您的子函數( userTypeWiseFieldGenerateForImportInsert()
)首先將子數組添加到數據中,您可以改為從初始數據創建一個部分,並合並來自此函數調用的附加數據...
foreach ($data as $key => $value) {
$newData = [
'name' => $value->name,
'email' => $value->email,
'mobile_no' => $value->mobile_no,
'password' => bcrypt($value->password),
'user_type_id' => $value->user_type_id,
'designation' => $value->designation,
];
$additionalData = $this->userTypeWiseFieldGenerateForImportInsert($value);
$insert[$key][] = array_merge($newData, $additionalData);
}
查看array_walk_recursive()函數。 例如:
$array = /*your array example*/;
$filter = [];
foreach ($array as $index => $item) {
array_walk_recursive($item, function($val, $key) use (&$filter) {
if (strpos($key, 'territori_code') === 0) {
$filter[$key] = $val;
}
});
}
注意:決定保留哪些密鑰的標准是什么?
我有一個參考: https : //codereview.stackexchange.com/questions/45281/merge-some-child-values-back-into-the-parent-multidimensional-array
沒有 PHP 內置函數可以幫助您輕松實現目標,您必須通過循環或遞歸函數。
它可以通過使用array_map().
創建一個簡單的函數來array_map().
在下面的代碼中,merge_my_array() 函數會將多維數組合並為單個數組,而不管嵌套數組如何包含它。
$arr = array(
0 => array(
'name' => 'Md. 1111',
'email' => 'abc@gmail.com',
'mobile_no' => '111111',
'password' => '$2y$10$6Vmr61t896IxfJ1A0pxX5Of1hnfUVX9blmdmclAxt56cMd754NkDC',
'user_type_id' => 1,
'designation' => 'Sr. Software Engineer',
0 => array(
'market_code' => 'mirpurA203',
'product_code' => 'Seclo201',
'territori_code' => 'T352',
'region_code' => 'Mirpur334',
'division_code' => 'Dhaka31',
)
),
1 => array(
'name' => 'Md. 222',
'email' => 'def@gmail.com',
'mobile_no' => '222222',
'password' => '$2y$10$62fwqiAmrv.Jc89i5L3YNuMpcYeFVrpqewuBPKYIgmXiX/9sGRC/S',
'user_type_id' => 2,
'designation' => 'Sr. Software Engineer',
0 => array
(
'territori_code' =>'T352',
'region_code' => 'Mirpur334',
'division_code' => 'Dhaka31',
)
)
);
$out = array();
array_map("merge_my_array",$arr);
echo "<pre> out: "; print_r( $out );echo "</pre>";
function merge_my_array( $elem ){
global $out;
if( is_array($elem) ){
array_map( "merge_my_array", $elem );
}else{
array_push($out,$elem);
return;
}
}
您也可以在沒有 for 循環的情況下解決合並數組。
您可以嘗試以下代碼嗎?
function reduce(&$item, $key){
$item = array_merge($item, $item[0]);
unset($item[0]);
}
array_walk($data, 'reduce');
var_dump($array);
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