In PHP, how to encode the generated verification code image into base64?

PHP server Android client I need to encode the verification code image generated by the server into base64. Note: Instead of generating a display image, the generated image resource is directly encoded into base64 so how to do? ? ? ? ? ? ?

阿神 2017-05-27 17:42:38 0  2  1655

java - Image verification code implementation principle

**Test website: http://con.monyun.cn:9960/acc... There is a verification code on this page. The url of this verification code is <img src="../aut_checkCode.hts?=0.8963835985936632" class="icd"> How to change the displayed image when clicking on the verification code...

怪我咯 2017-05-27 17:41:18 0  4  1066

Why does my verification code only show one number?

//My code for this lesson is like this. I checked it several times and didn't see any errors, but the verification code displayed only has one number...Why is this happening? Please give me some guidance<?php// Generate the background header of the verification code('Content-type:image/jpeg'); //...

丫头 2018-04-21 11:01:31 1  5  3038

How to save a good verification code image locally in php?

Use PHP to draw login verification pictures. Since the pictures are taken locally, I don't want to return the picture in the form of a link. I want to name the drawn verification code picture, then save it to the specified path, and then return a local URL address. To the front desk, the front end d...

phpcn_u1582 2017-05-16 13:04:04 0  2  585

php - How to output image in base64

It's like this. Today I wrote a template for PHP to generate verification codes based on the information on the Internet: {code...} But I don't want him to output the image directly, but output the image in base64. How should I do it? I have tried many methods without success, unless it is necessary...

伊谢尔伦 2017-05-24 11:32:19 0  1  912

objective-c - The appsecret of WeChat open platform cannot be generated, the appid already exists

When I click to generate appsecret, it prompts that the identity of the operator has not been verified. When verifying according to the prompt, I am asked to enter the password of an email address. The key is that the email address displayed is a QQ number, and the password is also entered incorrect...

高洛峰 2017-05-02 09:29:28 0  0  674

javascript - How to add a function method in validate to determine whether the input has a value?

Now there is a form, which is verified and submitted using validate. The product puts forward a requirement to judge the price value in the chart produced after clicking the "Add Price" button. I looked at the js structure and verified the entire existing form first: the form generated aft...

phpcn_u1582 2017-06-12 09:28:32 0  1  1121

Objective-c - Black bar appears after hiding TabBar push

Here is the hidden code. Here is the code to generate TabBar. The code is written in a class I wrote myself that inherits UITabBarController. Here is the rendering.

PHP中文网 2017-05-02 09:25:47 0  1  636

javascript - Is only the last data output after the forEach loop?

As shown in the code, is the data generated after the foreach loop only the last one? My console.log(index); console can print out 0, 1, 2, 3, 4, but the pictures finally displayed on the page are all the pictures in case: 4. {Code...} This is the effect displayed on the page. The pictures are all.....

高洛峰 2017-05-19 10:09:07 0  3  691

javascript - problem with reference to image path

Picture reference: {code...} Directory structure: written by Lu Jin, why is the picture not displayed? Console prompt: webpack: {code...} The reason is found: {code...} Lu Jin should write The path relative to dist, but now there is another problem! If written like this, it will definitely not be di...

给我你的怀抱 2017-06-26 10:57:28 0  4  797

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  782

php - Doubts about using JWT

Using JWT for API verification, how to design token refresh logic? Save the generated token and a refresh token? Does JWT also need to save the generated token? When users reapply for tokens, change passwords, and perform other operations, the original token is cleared? oAuth and JWT...

PHP中文网 2017-05-16 13:17:13 0  1  1171

javascript - The name parameter set by webpack url-loader is invalid

6-23 {Code...} I need to convert the image into base64. This is successful. The following 'name=resourse/[name].[ext]' should generate a resource folder in the dist directory. Then there will be pictures in it. But it does not take effect... 6-24 I continued to modify and found that it is even more ...

伊谢尔伦 2017-06-26 10:51:52 0  1  1172

php - generate a 4 digit number

For the verification code, the code below generates a 5-digit number. I want it to be 4 digits. what should I do. //generaterandomnumbers$sayilar='';for($x=15;$x<=95;$x+=20){$sayilar.=($sayi=rand(0,9));imagechar($image,rand (3,5),$x,rand(2,14),$sayi,$textcolor);}

P粉709644700 2024-02-25 20:05:18 0  1  444

How to use php to call the tesseract-ocr program in the windows environment

Making a local website can recognize text and pictures. The PHP environment has been set up using xampp and HBuilder. How can I use PHP to call the tesseract-ocr program in the Windows environment? Display the uploaded image on the same interface of the website and then the website will feedback the...

crush 2019-04-23 09:28:31 0  0  1056

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  990

uml - Java code automatically generates sequence diagrams

Recently I was looking at the code of an Android project. Since it is a 2-3 year old project, the amount of code is quite considerable, so I was wondering if there are any tools that can help sort out some of the code logic. What is currently known is that there are some tools that can automatically...

女神的闺蜜爱上我 2017-06-30 09:55:32 0  1  1410

Why is the picture not displayed when using the GD2 function to generate a 4-digit verification code?

<?phpsession_start();header("content-type:image/png"); //Set the format of the created image $image_width=70;

S.L 2017-08-21 20:38:54 0  1  1292

TypeScript validation not working properly

I'm having trouble with TypeScript validation. From my own hook, I get an array (posts) of type Post[]| Not defined. Then I use Array.prototype.map on that array. TypeScript should give an error like "'posts'islikely'undefined'" and let me change the code from posts.map to posts?.map. Unfo...

P粉269847997 2024-03-20 09:14:31 0  1  347

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  652