如何在 laravel 中将数组转换为字符串

Question

$date = gc_head::select('DATE','point_no')->orderBy('DOCDATE','desc')->limit(7)->get();

这return类似于数组格式

[{"DATE":"2021-06-11 00:00:00","point_no":"SRT-358"},{"DATE":"2021-06-11 00:00:00","point_no":"SRT-359"},{"DATE":"2021-06-11 00:00:00","point_no":"SRT-360"},{"DATE":"2021-06-10 00:00:00","point_no":"SRT-357"},{"DATE":"2021-06-10 00:00:00","point_no":"SRT-356"},{"DATE":"2021-06-10 00:00:00","point_no":"SRT-355"},{"DATE":"2021-06-09 00:00:00","point_no":"SRT-348"}]

我想隔离 DATE 和 point_no。例如

$year=['2015','2016','2017','2018','2019','2020'];

我试过 $date['DOCDATE'] 来隔离它不起作用的日期。有没有更好的方法来解决这个问题？？

Answer 1

试试这个查询 -

$years= gc_head::select('DATE','point_no')->orderBy('DOCDATE','desc')->limit(7)->get()->map(function ($q) {
    return [Carbon::parse($q->DATE)->format('Y')];
});

Answer 2

您可以使用array_map函数。

$extractYear = function($date) {
    return substr($date["DATE"], 0, 4);
};

$years = array_map($extractYear, $date);

Answer 3

$date = gc_head::select('DATE','point_no')->orderBy('DOCDATE','desc')->limit(7)->get();

$date_array = array();

foreach($date as $dat){
  array_push($date_array, \Carbon\Carbon::parse($dat["DATE"])->format('Y');
}

return $date_array;

如何在 laravel 中将数组转换为字符串

How to convert array to string in laravel

php

laravel

laravel-query-builder