php按值从多维数组中删除重复项 [英] php remove duplicates from multidimensional array by value

问题描述

我想按值删除重复项，正如您从 list_title 中看到的那样.我知道有几个问题和答案，但他们的解决方案对我不起作用.

I would like to remove duplicates by value as you can see from the list_title. I know there are several questions and answers to this but their solution doesn't work for me.

这是我尝试过的:

$uniqueArray = array_map("unserialize", array_unique(array_map("serialize", $notify)));

结果:

Array
(
[0] => Array
    (
        [list_id] => 86
        [list_reference] => 130948
        [list_title] => Offer:  apartment 2+kk 
        [list_city] => Prague
        [list_date] => 2017-03-03 11:20:35
        [list_status] => 0
        [list_creator] => Company A
        [list_price] => 30000
        [list_furniture] => ["1","0","0"]
        [list_accommodation] => flat
    )

[1] => Array
    (
        [list_id] => 87
        [list_reference] => 130947
        [list_title] => Offer:  apartment 2+kk 
        [list_date] => 2017-03-03 11:20:35
        [list_status] => 0
        [list_creator] => Company B
        [list_price] => 30000
        [list_furniture] => ["1","0","0"]
        [list_accommodation] => flat
    )

[2] => Array ...

由于标题，预期结果应该是其中之一:

Expected result should be one of those because of the title:

Array
(
[0] => Array
(
    [list_id] => 86
    [list_reference] => 130948
    [list_title] => Offer:  apartment 2+kk 
    [list_city] => Prague
    [list_date] => 2017-03-03 11:20:35
    [list_status] => 0
    [list_creator] => Company A
    [list_price] => 30000
    [list_furniture] => ["1","0","0"]
    [list_accommodation] => flat
)

推荐答案

谢谢大家，有时过度思考会影响常识.

Thanks everyone, sometimes over-thinking can affect common sense.

我只是从 MYSQL 查询中解决了它，例如:

I simply solved it from MYSQL query with something like:

 GROUP BY list_title ORDER BY list_date

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