PHP - 合并两个对象数组，包括其他对象
在我的 symfony 项目中，我需要能够在删除重复项的同时合并多个对象数组。
例如 ：
数组 1：
Array
(
[0] => Absence Object
(
[id] => 1
[type] => TypeConge Object ([id] => 4, [nom] => "Maladie")
[user] => User Object (......)
[debut] => 12-11-2019 00:00:00
)
[1] => Absence Object
(
[id] => 2
[type] => TypeConge Object ([id] => 5, [nom] => "CA")
[user] => User Object (......)
[debut] => 13-11-2019 00:00:00
)
[2] => Absence Object
(
[id] => 3
[type] => TypeConge Object ([id] => 4, [nom] => "Maladie")
[user] => User Object (......)
[debut] => 11-11-2019 00:00:00
)
)
阵列 2：
Array
(
[0] => Absence Object
(
[id] => 1
[type] => TypeConge Object ([id] => 4, [nom] => "Maladie")
[user] => User Object (......)
[debut] => 12-11-2019 00:00:00
)
[1] => Absence Object
(
[id] => 8
[type] => TypeConge Object ([id] => 4, [nom] => "Maladie")
[user] => User Object (......)
[debut] => 17-11-2019 00:00:00
)
)
输出：
Array
(
[0] => Absence Object
(
[id] => 1
[type] => TypeConge Object ([id] => 4, [nom] => "Maladie")
[user] => User Object (......)
[debut] => 12-11-2019 00:00:00
)
[1] => Absence Object
(
[id] => 2
[type] => TypeConge Object ([id] => 5, [nom] => "CA")
[user] => User Object (......)
[debut] => 13-11-2019 00:00:00
)
我使用这段代码来做到这一点：
$demandes = $this->getDemandesValidateur($unUser, $search, $superValidation);
$tabDemandes = array_merge($tabDemandes, $demandes);
$tabDemandes = array_map("unserialize", array_unique(array_map("serialize", $tabDemandes)));
但我的印象是，由于序列化和反序列化，它会导致错误。我得到了很好的决赛桌，但有些数据似乎无法使用。例如我不能打电话：
$absence->getType()->getNom();
它有时会返回 null。是因为我的代码吗？
MMMHUHU2回答
-
手掌心
根据 splash58 的评论，您可以使用array_column()然后合并数组，同时只保留第一项。可以在这里看到一个样本。<?php$records = array( array( 'id' => 2135, 'first_name' => 'John', 'last_name' => 'Doe', ), array( 'id' => 3245, 'first_name' => 'Sally', 'last_name' => 'Smith', ), array( 'id' => 5342, 'first_name' => 'Jane', 'last_name' => 'Jones', ), array( 'id' => 5623, 'first_name' => 'Peter', 'last_name' => 'Doe', ));$records2 = array( array( 'id' => 2135, 'first_name' => 'John', 'last_name' => 'Doe', ), array( 'id' => 3245, 'first_name' => 'Sally', 'last_name' => 'Smith', ), array( 'id' => 5342, 'first_name' => 'Jane', 'last_name' => 'Jones', ), array( 'id' => 5624, 'first_name' => 'Peter', 'last_name' => 'Doe', ));$first = array_column($records, null, 'id');$second = array_column($records2, null, 'id');$third = $first + $second;// if you want to reset indexes// $third = array_values($third);echo print_r($third); -
慕雪6442864
你可以这样做：$result = [];$array1 = [ [ "id" => 1, "other_data" => "text1" ], [ "id" => 2, "other_data" => "text2" ], [ "id" => 3, "other_data" => "text3" ], ];$array2 = [ [ "id" => 1, "other_data" => "text1" ], [ "id" => 8, "other_data" => "text8" ],];$merge_array = function($array, $result) { foreach($array as $element) { $id = $element["id"]; //In your case it could be $element->getId() if(!isset($result[$id])) { $result[$id] = $element; } } return $result;};$result = $merge_array($array1, $result);$result = $merge_array($array2, $result);print_r(array_values($result));
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