javascript - How to preview uploaded images?

Similar to this kind of uploading pictures, you can also preview the display. How should I write the front end? Is there any similar code that you can provide me with? Thanks

滿天的星座 2017-06-13 09:24:13 0  4  867

javascript - Problems with previewing images uploaded by vue

As shown in the figure, this code implements the function of uploading preview images. But here, the path of the uploaded image is saved directly in items. If there are multiple fields such as title, img, etc. in items, how can I save the path of the uploaded image in the img field of items?

扔个三星炸死你 2017-06-26 10:52:32 0  1  714

php - Upload multiple pictures on the mobile terminal, but only one is processed in the background

1. Recently, PHP is used to interface with the IOS side. When uploading multiple pictures, the APP side calls the background's upload single picture interface in a loop, and the background saves the picture and stores the path in the database. But the final result is that as many pictures are upload...

伊谢尔伦 2017-05-24 11:30:54 0  1  486

Fix PHP image upload issue: replace previous image to upload new image in multiple posts

I'm running into an issue with the image upload functionality of my PHP application. Here's the situation: I have a form where the user can create a post and upload an image related to the post. When I upload my first post with an image attached, everything works fine and the image is saved correctl...

P粉788765679 2023-09-14 11:27:48 0  1  487

javascript - js image upload plug-in with preview function, which ones are easier to use?

js image upload plug-in with preview function, which ones are better to use? There are more information and many people use them. Please recommend.

高洛峰 2017-06-12 09:30:40 0  4  935

php - weui upload multiple images uploaded at the same time

The problem currently encountered is the application's weui image upload framework, but the preview part li in the code obtains images of type blob. But there is only one input, submitted to php through ajax, and only the last picture can be obtained.

巴扎黑 2017-06-05 11:09:24 0  2  784

PHP toolbox fails to build local server

When setting up the local server using the PHP toolbox downloaded from php.cn, it failed to modify the hosts according to the video steps (unable to upload images);

phpcn_u3114 2017-06-12 18:38:26 0  1  1037

laravel - How to write this in php?

Image description: I saw a lot of code in Laravel with the view:'welcome' style. I thought it was PHP's new syntax, but when I copied it, it disappeared. Is it a function of phpstorm?

習慣沉默 2017-05-27 17:43:34 0  1  485

javascript - Looking for ideas on how to build an e-commerce platform

1. Interviewed by HR, the boss wants to develop an e-commerce platform. 2. Traditional functions, such as promotion and sharing, sending mobile phone verification codes, puzzle verification, etc. 3. The specific implementation is a bit vague. After all, it is the first time to do it, there are 2 I d...

習慣沉默 2017-06-13 09:21:29 0  4  991

Sequentially rename files on upload based on existing files in directory

I'm using this (php) upload code I found online for an image upload form. I realize there are already a lot of questions/answers on the site about "renaming files" when uploading, and I've researched them quite a bit. So far...none of them seem to specifically address what I want to do. Ho...

P粉310931198 2023-09-10 13:14:12 0  1  713

Updating existing codebase to PHP 8.1: Handling non-nullable internal function parameters with Null values

I've just started upgrading my code to be compatible with php8.1. I have a lot of code snippets where I'm passing potential null values ​​to inner functions. if(strlen($row)>0){...} where $row comes from a source that may have null values ​​(such as a query). This may generate a deprecation warni...

P粉344355715 2023-10-31 20:01:48 0  2  809

My graduation project is to build a language learning website. Do you have any guidance or suggestions from senior experts?

As a novice, how long can it take to learn and practice at the same time? Also, do you have any practical suggestions for learning? Regarding domain name registration, server selection: which type of server to choose, as well as performance options such as space size and transmission rate. In terms ...

九号 2019-03-10 16:48:55 0  3  1201

I encountered some difficulties when developing the WeChat applet calculator. There is an error that I can't figure out, but it seems to be the same as what is written in the video. Please give me some guidance.

I encountered some difficulties when developing the WeChat applet calculator. There is an error that I can't figure out, but it seems to be the same as what is written in the video. I would like to ask for guidance. For example, if you enter: "7+7", the result will be displayed as 14 norma...

会玩的白先森 2018-03-24 16:43:36 0  1  1436

Visual Studio Code: Effective technique for clear dollar sign separation in variable names

I just switched from Atom to VisualStudioCode and I'm looking for a way to visually separate the dollar signs from variable names. Something like this is possible in Atom by editing a personal CSS stylesheet. After applying some CSS rules, this can be achieved: there is no space character between th...

P粉543344381 2024-03-21 20:31:19 0  1  546

How to create a satisfying web design

It cannot display my own designs. I want to create a redesign. Creating a web design is a multifaceted process that requires aesthetics, functionality, and user experience to be seamlessly blended together. It starts with a deep understanding of the website’s purpose, target audience, and brand. A w...

P粉908643611 2023-08-10 17:09:33 0  1  545

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47 0  1  829

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42 0  1  729

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28 0  1  619

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32 0  1  581

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44 0  1  1009