mysql - laravel php 数据存储 Array toJson
<code>$goods = ""; foreach($carts as $key => $c){ $good = Goods::where(["product_id" => $c->product_id,"merchant_id" => $c->merchant_id])->first(); $good -> number = $c->number; $goods[] = $good; } $order = new Order; $order -> json = $goods; if( $order->save()){ return response()->json(array( 'status' => 1, 'msg' => "下单成功")); }else{ return Redirect::back()->withInput()->withErrors('保存失败!'); } </code>
$goods 的到的数据 是一组数组
保存到数据库是就成了 Array 了
然后 用 json 转一下
<code>$goods = $goods->toJson(); </code>
toJson() 报错了
Call to a member function toJson() on array
有大神可以指导一下吗
回复内容:
<code>$goods = ""; foreach($carts as $key => $c){ $good = Goods::where(["product_id" => $c->product_id,"merchant_id" => $c->merchant_id])->first(); $good -> number = $c->number; $goods[] = $good; } $order = new Order; $order -> json = $goods; if( $order->save()){ return response()->json(array( 'status' => 1, 'msg' => "下单成功")); }else{ return Redirect::back()->withInput()->withErrors('保存失败!'); } </code>
$goods 的到的数据 是一组数组
保存到数据库是就成了 Array 了
然后 用 json 转一下
<code>$goods = $goods->toJson(); </code>
toJson() 报错了
Call to a member function toJson() on array
有大神可以指导一下吗
从你的foreach
来看,最后的$goods
是一个普通的数组,这个数组跟toJSON
没有什么必然联系,在我的记忆中,toJSON
应该不是php内置的吧。
想到的解决方案:
<code>$order -> json = json_encode($goods); </code>
对于上面的代码,还有以下的建议:
<code>foreach($carts as $key => $c){ $good = Goods::where(["product_id" => $c->product_id,"merchant_id" => $c->merchant_id])->first(); $good -> number = $c->number; $goods[] = $good; } </code>
上面这一段,我觉得你好好看看Eloquent的Relationship部分,这个应该会很好地解决了。
第二,else关键字其实很多时候是可以不用的:
<code>if( $order->save() ) { return response()->json(array( 'status' => 1, 'msg' => "下单成功")); } return Redirect::back()->withInput()->withErrors('保存失败!'); </code>
以上的代码应该也是行得通的
赞楼上,json_encode()是php最常用的内置函数之一,lz不要太过于依赖框架了

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

One of the major changes introduced in MySQL 8.4 (the latest LTS release as of 2024) is that the "MySQL Native Password" plugin is no longer enabled by default. Further, MySQL 9.0 removes this plugin completely. This change affects PHP and other app

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

CMS stands for Content Management System. It is a software application or platform that enables users to create, manage, and modify digital content without requiring advanced technical knowledge. CMS allows users to easily create and organize content

How to implement the table function of custom click to add data in dcatadmin (laravel-admin) When using dcat...

Arrays are linear data structures used to process data in programming. Sometimes when we are processing arrays we need to add new elements to the existing array. In this article, we will discuss several ways to add elements to the end of an array in PHP, with code examples, output, and time and space complexity analysis for each method. Here are the different ways to add elements to an array: Use square brackets [] In PHP, the way to add elements to the end of an array is to use square brackets []. This syntax only works in cases where we want to add only a single element. The following is the syntax: $array[] = value; Example
