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  493

Images are uploaded asynchronously. If the user does not submit the form, what should I do if there are many useless images?

Images are uploaded asynchronously. If the user does not submit the form, what should I do if there are many useless images? Asking for help, gentlemen! ! Dear gentlemen! I upload the image asynchronously, but if the user does not submit the form, this useless image will exist! It’s no use either! H...

七喜 2018-11-12 14:26:37 0  6  1700

Problem: Images load too slowly

I made a craiglist-like website using Html, Css, Js, and Php. When the user clicks to upload an image larger than 1mb, the page becomes very slow or fails (503 error). There is no problem with images smaller than 100kb. There is a form on a php page with type=file input tag and preview img tag. >...

P粉676821490 2023-08-17 22:40:08 0  1  665

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  508

javascript - JS image compression and upload as file

JS image compression is used to upload images in WEBKIT. When selecting an image, compress the image and obtain the BASE64 data of the image, and then upload the image in the form of File when submitting the form. The BASE data has been obtained, but the uploaded file is also BASE64 data and cannot ...

淡淡烟草味 2017-05-18 10:58:12 0  4  1727

angular.js - ng-file-upload How to implement multiple image uploads

ng-file-upload How to upload multiple images? My code: html: {code...} javascript: {code...} If written like this, it is still a single image, and multiple images cannot be uploaded. Clicking upload will remove the previously uploaded image. {Code...} Supplement the code I wrote, the html part is a ...

phpcn_u1582 2017-05-15 17:04:39 0  3  852

Rich text editor - wangeditor+plupload+php uploads local images, and the images are loaded as usual

The code is the code from WangEditor official document. There is no problem in uploading network images, but there is no way to load local images. There is no problem with uploading screenshots and pasting images to the upload page, but there is an error in the display of locally uploaded images. Af...

PHP中文网 2017-05-16 13:02:17 0  1  703

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  790

html5 - How to use Canvas technology to create a music score that jumps up and down

I would like to ask how to use canvas technology to create a music score that jumps up and down. It is similar to this picture, with a simple effect of jumping up and down!

PHPz 2017-05-16 13:21:58 0  1  779

javascript - Paste a piece of content with pictures and text. How to use js to get the picture and upload it to the server?

I need to paste a piece of content with text and pictures, but the pictures need to be uploaded to the server separately. How to select the pictures from the pasted content. .

扔个三星炸死你 2017-06-24 09:43:22 0  1  1328

About the article publishing function of Peter Zhu's thinkphp teaching video?

The title image of the verification rule is set to require, and then the title image of the form has an uploaded image. Why is it still displayed that the title image cannot be empty? Why do we insist on deleting this verification rule?

柳东衾 2018-05-28 09:44:19 0  0  1007

How to upload php images and forms together with ajax?

Should the image be uploaded together with the form through ajax? I don’t know how to upload it together? I uploaded the image separately using formdata, but I don’t know how to associate it with the form submission?

PHP中文网 2017-06-23 09:11:57 0  4  950

javascript - Replace user avatar

There is such a requirement that users can change the displayed avatar. My idea is this: the user first uploads the avatar image, replaces the avatar image on the server, and then refreshes to display the updated image. The question is, how to upload images to the server using JS, combined with PHP ...

ringa_lee 2017-05-16 13:03:32 0  3  693

angular.js - The Content-Type of angular post is set, resulting in the inability to upload images. Please help! !

Due to some reasons, the following code is set in the angular project: {code...} As a result, files cannot be uploaded now, and the simplest form submission cannot work: {code...} Asking for help from the experts, how can it work normally? Upload a picture? Urgent, very urgent, the project has been ...

漂亮男人 2017-05-15 17:10:24 0  3  790

Change image via onclick() function

I want to change one picture to another when clicking on the object. The code is stacked in the following order: What I want is that when I click, the image is replaced with a colored version of the image, i.e. another image. Now, I know I can do it using JQuery/JS. But I don't want to add a lot of ...

P粉242535777 2023-08-18 08:53:28 0  1  513

7 cow deposit pictures php

Use php to upload images and then save them to 7Niu. Why don’t you see an interface? There is also 7Niu. Isn’t it very inconvenient to manage if you can’t upload images to folders? If I upload a css js file, will my css be updated every time? They all need to be uploaded again.

天蓬老师 2017-05-16 12:02:16 0  1  525

mysql - thinkphp3.2.3 uploads multiple images and passes them to three fields of the same data table

I want to upload three pictures at the same time in a form, and upload them to three fields in the data table, namely preview1, preview2, preview3, but now only one picture can be uploaded. I would like to ask everyone to help me see how to modify it. . 1. Front-end page 2. Back-end code 3. Database...

伊谢尔伦 2017-05-16 13:01:00 0  4  521

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  883

Changing the image path with css does not work

The image path in CSS is modified in the static website and then uploaded to the server. After opening the website, the original effect without modification is displayed. The image can be opened separately. The modified image has an absolute path. How should this be handled? Thanks!

PHP中文网用户-5675994 2023-07-20 22:29:02 0  0  1682

javascript - Baidu's webuploader upload problem

I want to ask all the masters who are passing by. I have such a need now... that is, I am using the webuploader upload plug-in. If the upload of a single picture fails, what should I do if I want to change the picture and continue uploading? I couldn't find the corresponding API on the official webs...

为情所困 2017-06-07 09:24:38 0  1  1046