我需要一些幫助。我一直在嘗試解決這個問題，但我不能，所以我想做的是我試圖將對象數組 blackListUser 與contactUsers 進行比較。如果有匹配，我想返回新用戶的白名單，而沒有后備用戶，這是最后一個預期的新數組。for($counter = 0; $counter < count($blackListUsers); $counter++) { how i can check here}ContactUsersArray( [0] => stdClass Object ( [user_id] => 2 [full_name] => User B [image] => 1582735876user-a.png ) [1] => stdClass Object ( [user_id] => 3 [full_name] => User C [image] => 1582735876user-a.png ) [2] => stdClass Object ( [user_id] => 4 [full_name] => User D [image] => 1582735876user-a.png ) [3] => stdClass Object ( [user_id] => 5 [full_name] => User E [image] => 1582735876user-a.png ) [4] => stdClass Object ( [user_id] => 6 [full_name] => User F [image] => 1582735876user-a.png ) [5] => stdClass Object ( [user_id] => 8 [full_name] => User G [image] => 1582735876user-a.png ))blackListUsersArray( [0] => stdClass Object ( [user_id] => 2 [full_name] => User B [image] => 1582735876user-a.png ) [1] => stdClass Object ( [user_id] => 3 [full_name] => User C [image] => 1582735876user-a.png ))expected new array Array ( { "user_id": "4", "name": "User D", "image": "1582735876user-a.png" }, { "user_id": "5", "name": "User E", "image": "1582735876user-a.png" }, { "user_id": "6", "name": "User F", "image": "1582735876user-a.png" }, { "user_id": "8", "name": "User G", "image": "1582735876user-a.png" } )
1 回答
慕哥6287543
TA貢獻1831條經驗 獲得超10個贊
<?php
$user1->user_id = 2;
$user1->full_name = 'User B';
$user1->image = '1582735876user-a.png';
$user2->user_id = 3;
$user2->full_name = 'User C';
$user2->image = '1582735876user-a.png';
$user3->user_id = 4;
$user3->full_name = 'User D';
$user3->image = '1582735876user-a.png';
$user4->user_id = 3;
$user4->full_name = 'User C';
$user4->image = '1582735876user-a.png';
$users = [$user1, $user2, $user3];
$blackListedUsers = [$user4];
$res = array_filter($users, function ($user) use ($blackListedUsers) {
return !in_array($user, $blackListedUsers);
});
var_dump($res);
將array_filter與匿名函數一起使用；和in_array。閱讀in_array文檔以查看它是否符合您的需要，因為它正在比較兩個對象，您可以使用一個自定義函數，該函數僅在兩個對象的 ID 相等時進行測試。
更新
或者更適合初學者的代碼版本：
<?php
$user1->user_id = 2;
$user1->full_name = 'User B';
$user1->image = '1582735876user-a.png';
$user2->user_id = 3;
$user2->full_name = 'User C';
$user2->image = '1582735876user-a.png';
$user3->user_id = 4;
$user3->full_name = 'User D';
$user3->image = '1582735876user-a.png';
$user4->user_id = 3;
$user4->full_name = 'User C';
$user4->image = '1582735876user-a.png';
$users = [$user1, $user2, $user3];
$blackListedUsers = [$user4];
$validUsers = [];
foreach ($users as $user) {
if (!isBlacklisted($user, $blackListedUsers)) {
$validUsers[] = $user;
}
}
var_dump($validUsers);
function isBlacklisted($user, $blackListedUsers) {
foreach ($blackListedUsers as $blackListedUser) {
if ($user->user_id == $blackListedUser->user_id) {
return true;
}
}
return false;
}
- 1 回答
- 0 關注
- 137 瀏覽
添加回答
舉報
0/150
提交
取消