Asksearch_php.cn

Community Learn Tools Library Leisure

English

Popular searches：
PHP
MySQL
jquery
HTML
CSS

How to access properties inside PHP?

Follow up on the basis of this document: https://www.php.net/manual/en/language.oop5.references.php A key point of PHP object-oriented programming that is often mentioned is that "objects pass by reference by default transfer". This is not entirely correct. In PHP, object variables do not ...

P粉518799557 2023-09-05 18:50:40

symfony - How to use $this->get non-bundle in your own newly created class.

I am using edusoho. It is developed based on symfony2. There is a service folder in it that provides operations on the database (not the service in the configuration file in symfony2). This service is not a bundle and is not registered in registerBundles. In fact, there are many custom installations...

我想大声告诉你 2017-05-16 16:43:43

Add different classes to dynamically created elements

I have an array of objects where each object has a textValue, an active, info etc. I will loop through this arrangement and display the buttons for each element. For each button inside I add a div and within the 3 paragraphs I try to add classes and conditionally show some paragraphs to each button....

P粉573809727 2023-09-11 13:34:46

php - Asking for advice on TP5 exception handling source code issues

In the TP5 source code Error.php file, there is the following code: Is the mark of this code redundant? Aren’t the parameters accepted by the appException() function all objects based on the base class \Exception? Could you please tell me what kind of exception is not based on the base class \Except...

PHP中文网 2017-05-24 11:34:35

[Must-read for front-end job hunting] Selected front-end development interview questions and answers_Outline

Front-end development interview knowledge points outline: 1. HTML&CSS: Understanding of Web standards, browser kernel differences, compatibility, hacks, basic CSS skills: layout, box model, selector priority and use, HTML5, CSS3, mobile terminal adaptation 2. JavaScript: Data type, object-ori...

天蓬老师 2017-11-13 12:02:37

After cross-class call, method cannot be found

Do static method overloading to achieve chained access to the database exercise demo5.php references the Query.php class and then accesses the method in Query. The page prompts me that the method 'table' is not found in the Database. The following is the source code. I hope it can help. The first er...

方人胥 2021-06-12 17:16:18

Cannot use an object of type Illuminate\Validation\Validator as an array

While testing a POST request to API/Register, I receive the following error in Postman. "Error: Cannot use an object of type Illuminate\Validation\Validator as an array in file C:\Users\azzam\laravel-app\azzamnewapi\app\Http\Controllers\AuthController.php on line 25" This is my AuthControl...

P粉930448030 2023-12-12 11:40:54

Ex-Admin uses graphical drag and drop to generate CURD without paying attention to JS. You can quickly build a backend system using only PHP code.

Ex-AdminEx-Admin is a backend system construction tool developed based on Ant Design of Vue. There is no need to pay attention to the page template JavaScript, and you can quickly build a fully functional backend system using only PHP code. . [Chinese Document][Demo / Online Demonstration][github] [...

Rocky 2022-07-21 12:27:18

Queue task making request to access file from Laravel

Hi everyone, I have a queued Laravel job for inserting some records into the database via a file imported by the user. But whenever I access the request object in the job to get the uploaded file, I get null. However, the file is received normally in the controller. Any ideas? Find the import method...

P粉762447363 2023-09-03 13:43:56

Why is the data I'm binding in a Vue 3 form not updating when printed on the console via a function?

I've created a form component in Vue3 and I'm trying to bind a reference object to an input element. Based on my understanding of two-way binding and the way Vue has behaved in my past works, I would expect any changes to affect my reference. Immediate object without any operations like I have to do...

P粉354602955 2023-09-04 11:50:33

Why does debug_backtrace() return empty?

I have a piece of PHP code in PHP7.4. Part of it is located in the top-level PHP script (/home/path/a.php) and contains a bunch of try-catch blocks and calls to objects and included files. These try-catch blocks throw exceptions when encountering situations such as custom errors and runtime errors. ...

P粉204136428 2023-07-31 11:21:13

How to use mysqli to determine whether a MySQL database exists in PHP?

How to use the mysqli statement in PHP to accurately determine whether a MySQL database exists? In addition, how to determine whether a table in the database exists? In addition, what do the two styles provided in the official PHP documentation mean? Object-oriented style and process-oriented style....

淡淡烟草味 2017-06-14 10:49:52

How to upload file array using formData

Because clicking input type='file' again will overwrite the previous fileList, I first convert the selected file into base64 as a preview image, similar to this. It can be added multiple times, but how do I add multiple preview images when uploading? Add it to the formdata object and accept paramete...

PHP中文网 2017-07-05 11:02:53

Teaching course preview for September 12, 2018: Detailed explanation of dom operations in Javascript

1. Teaching topic: DOM operation content in Javascript. (The full name of DOM is Document Object Model, which allows js scripts to control Web pages, windows and documents.) For more detailed explanations of JavaScript knowledge points, please pay attention to tonight's live class on time! Lecturer:...

藏色散人 2018-09-12 14:45:26

How to use PDO connection in other classes

I feel like I have a problem understanding how object-oriented programming (OOP) works. I've changed the code so that it works, but I don't think it's the right way. Here's a scenario (no, I'm not creating the user login myself, this is just to understand OOP better): I have a database.php file: cla...

P粉293550575 2023-08-24 15:10:58

I have the front-end source code, but I don't know how to connect it to the back-end.

I want to develop a backend management system, similar to cms. There are more than 1000 html files. I want to convert them into php or stored databases, but I don’t know how to operate them. I tried to transfer these files to the WordPress theme yesterday and failed many times. I want to Please tell...

P粉932382659 2022-05-24 16:47:40

Destructuring reactive objects in Vue script settings

I'm following the Vue3 documentation to see how I can move to using the <scriptsetup> tag to simplify my component code. One of the benefits of using this setup is that you no longer need to use the export default boilerplate to explicitly return objects: anything declared in the top-level sco...

P粉418214279 2024-03-25 20:03:34

The route is declared by name, but this.$route.name : undefined

I'm using Vue3CDN on top of a Django project to which I added a VueRouter and it was working fine until I decided to add a name to the route object. Inside my main component I try to check the value of the route name every time the user visits the page. constroutes=[{path:'/',name:'home',component:h...

P粉555696738 2024-03-27 10:20:02

Challenges when using window.location.href to redirect to a new page

I'm having trouble redirecting to a local domain php file, I've got it ready to redirect to thankyou.php is there anything I'm missing in the code that would allow me to do this? I've done a lot of research on this issue now and don't see any difference between what I'm doing and what I'm advised to...

P粉523335026 2024-04-04 12:57:06

Pass form with multiple ids and select to PHP using AJAX

I'm trying to collect selected checkboxes, update or delete them and pass this form to php via ajax. I'm very new to this and have spent a few days trying to figure out a way. Web research didn't give me any results, I tried sending ajax a few different ways - no results. Although using only PHP, I ...

P粉729198207 2024-02-26 14:17:13