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

javascript - After following the WeChat official account, you will receive a picture with a WeChat avatar and a QR code. How was this image generated?

After following the WeChat official account, you will receive a picture with a WeChat avatar and a QR code. How was this image generated?

PHP中文网 2017-05-27 17:42:17 0  3  920

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

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

javascript - canvas uses toDataUrl() error, img setting img.crossOrigin = "*" is useless.

The page has a screenshot function, and a picture is generated locally, then converted to canvas, and then converted from canvas to png, but canvas.toDataUrl() keeps reporting an error: {code...} The code is as follows: {code... }

过去多啦不再A梦 2017-07-05 10:57:31 0  1  843

phpstorm registration code

I couldn't use the registration verification address attached to the PHP Chinese website. I found the cracked registration code online. This is a screenshot of my successful registration! Registration code address: http://idea.lanyus.com/getkey?userName=lan+yu

小生我怕怕啊 2018-07-05 11:23:36 0  6  6282

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

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

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 - WeChat jssdk injection configuration prompt config:invalid signature

1. Use official tools to verify that the generated signature is the same as the locally generated one. 2. The signature verification parameters are as follows {code...} 3. The official API says that the current page URL is used. This is a bit unclear. The background uses request. .getRequestURL().to...

怪我咯 2017-05-17 10:01:10 0  1  664

javascript - How to prevent img pictures from being opened by the picture viewer of mobile browsers

1. Hello everyone~ I found a problem when making the landing page of the advertising page. 2. For a page similar to the landing page advertising page, when clicking on the image in Android's UC browser, it changes to viewing the image (this is not found in other browsers) situation) 3. The page code...

巴扎黑 2017-06-17 09:16:19 0  2  977

How to get openid after scanning the QR code image generated with PHP?

I used the PHP QR code generation class library to generate a QR code picture (not generated by the WeChat interface). I want to get the openid of a WeChat user after scanning the QR code. How can I implement this function? (I previously thought of using web page authorization to achieve this, but t...

LRTRL 2017-06-28 16:57:44 0  1  2011

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  1171

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

: Property 'text' was accessed during rendering but is not defined on the Pug instance

I'm new to vue and am trying to create a view that uses code to verify an email after someone registers. I currently only have views and nothing to connect to the email or generate code. I'm using pug, typescript and scss in this vue project. I know this problem is usually due to typos, but I can't ...

P粉598140294 2024-03-27 16:15:26 0  1  351

Navigate to next page after making selection using Visible Values ​​option

I'm trying to create a flow using HTML (code is at the bottom) I select "Cisco" and then go to the next box for me to choose a type, I select "PE Router" and then go to the next set of options, select the device and so on , until completed How can I create something similar to co...

P粉351138462 2024-02-26 22:45:32 0  1  1774

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  443

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

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