[英]How to Remove value from an array using another array with multiple values?
I have two array Array1 and Array2 and I need to remove Array2 value from Array1 I show my both the Array here. 我有两个数组Array1和Array2,我需要从Array1中删除Array2的值,在这里我将同时显示两个Array。
In Array1 I have utype_id is 11 and 14 and I need to remove this id record from Array2 so how can I do it can you please help me? 在Array1中,我的utype_id是11和14,我需要从Array2中删除此id记录,所以我该怎么办?
Array1(
[0] => stdClass Object
(
[id] => 22
[accessid] => 2
[utype_id] => 11
[discount] => 3434
[published] => 1
)
[1] => stdClass Object
(
[id] => 23
[accessid] => 2
[utype_id] => 14
[discount] => 2
[published] => 1
)
)
Array2
(
[0] => stdClass Object
(
[id] => 9
[type_name] => Admin
[description] => admin
[published] => 0
)
[1] => stdClass Object
(
[id] => 10
[type_name] => Senior sales
[description] => senior sales
[published] => 0
)
[2] => stdClass Object
(
[id] => 11
[type_name] => junior sales
[description] => junior
[published] => 1
)
[3] => stdClass Object
(
[id] => 14
[type_name] => dealer
[description] => dealer
[published] => 0
)
[4] => stdClass Object
(
[id] => 15
[type_name] => fgdg
[description] => dfg
[published] => 1
)
[5] => stdClass Object
(
[id] => 16
[type_name] => fgdfg
[description] => fgdfg
[published] => 0
)
)
I didn't get any solution for this. 我对此没有任何解决方案。 I need only 9,10,15,16 Record id from Array2.
我只需要Array2中的9,10,15,16记录ID。
Just for entertainment purposes (and I was feeling a bit left out :( ). Index both arrays by the ID (need php 7+ for array_column()
to support objects as input) and then array_diff_key()
to remove any from the second array... 仅出于娱乐目的(我感觉有点被遗忘了:()。按ID对两个数组进行索引(需要php 7+来支持
array_column()
以支持对象作为输入),然后使用array_diff_key()
从第二个数组中删除任何数组...
print_r(array_diff_key(array_column($array2, null, "id"),
array_column($array1, null, "utype_id")));
I would like to say that a foreach()
solution is faster than this, just wanted to join in and post some original content. 我想说一个
foreach()
解决方案比这要快,只是想加入并发布一些原始内容。
First, extract utype_id
s from first array, make them keys to speed up search: 首先,从第一个数组中提取
utype_id
,使其成为键以加快搜索速度:
$utype_ids = [];
foreach ($array1 as $item) {
$utype_ids[$item->utype_id] = 1;
}
Then, filter second array using $utype_ids
: 然后,使用
$utype_ids
过滤第二个数组:
$filtered_array = array_filter(
$array2,
function($v) use ($utype_ids) {
return !isset($utype_ids[$v->id]);
}
);
Demo: https://3v4l.org/i2heV 演示: https : //3v4l.org/i2heV
Use nested loops to perform the qualifying checks. 使用嵌套循环执行合格检查。 Use a
break
as a matter of best practice to avoid unnecessary iterations. 作为最佳实践,请使用
break
,以避免不必要的迭代。
$blacklist = [
(object)["id" => 22,"accessid" => 2, "utype_id" => 11, "discount" => 3434, "published" => 1],
(object)["id" => 23,"accessid" => 2, "utype_id" => 14, "discount" => 2, "published" => 1]
];
$rows = [
(object)["id" => 9, "type_name" => "Admin", "description" => "admin", "published" => 0],
(object)["id" => 10, "type_name" => "Senior sales", "description" => "senior sales", "published" => 0],
(object)["id" => 11, "type_name" => "junior sales", "description" => "junior sales", "published" => 1],
(object)["id" => 14, "type_name" => "dealer", "description" => "dealer", "published" => 0],
(object)["id" => 15, "type_name" => "fgdg", "description" => "dfg", "published" => 1],
(object)["id" => 16, "type_name" => "fgdfg", "description" => "fgdfg", "published" => 0]
];
foreach ($blacklist as $disqualifier) { // iterate the blacklist
foreach ($rows as $index => $row) { // iterate the list to be checked
if ($row->id === $disqualifier->utype_id) { // if row should be disqualified
unset($rows[$index]); // remove the row
break; // stop checking the $rows for this $disqualifier
}
}
}
var_export($rows);
...if you need the output to be reindexed, you can call array_values($rows)
. ...如果需要重新索引输出,则可以调用
array_values($rows)
。
If these arrays of objects are coming from a database table, you should be improving your query to do this filtration process in advance. 如果这些对象数组来自数据库表,则应改进查询以提前执行此过滤过程。
You can use.. 您可以使用..
$arr1ids = array();
foreach($array1 as $val1){
$arr1ids[] = $val1->utype_id;
}
$resArr = array();
foreach($array2 as $val2){
if(!in_array($val2->utype_id,$arr1ids)){
$resArr[] = $val2;
}
}
print_r($resArr);
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