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What is the principle of the PHP code online execution tool? eval( )?

What is the principle of the PHP code online execution tool in the website? Should the code be submitted to the backend as data, and then the backend will execute the eval function and then send the result to the front-end page?

王凱凱 2018-05-11 09:53:28 0  0  1075

javascript - I once saw an online real-time drawing tool. On the left is some code, and on the right is the relationship between them.

For example, if I write a-bb-cb-d, a relationship diagram similar to this will be displayed on the right, and the graph can choose whether to output svg or what format. Does anyone know the URL of this tool?

怪我咯 2017-05-19 10:18:19 0  1  818

PHP communicates with UDP using a fixed port number

Currently known server, ip192.168.10.1, port number 8123, language C++, communication protocol udp Note: The server only receives requests sent by clients with port number 8234. The following code was found online and can send successful requests, but No return value received. You can use the packet...

阿神 2017-06-23 09:11:29 0  2  1345

nginx configures gzip to compress css but not compress js

The nginx I use is 1.6. gzip is written in the configuration file. See {code...} but I used the online testing tool http://gtmetrix.com/ to test. Only the css was compressed and the js was not compressed (the same is true for the domestic webkaka speed test). How strange. I asked a lot of people, bu...

大家講道理 2017-05-16 17:27:04 0  1  729

svn migrate git

The current business scenario is as follows: The project team has been using svn as a version control tool for the code. It is recently planning to migrate to git, but it still wants to retain the historical submission records on svn (this is the key point). I've been searching online for a long tim...

給我你的懷抱 2017-05-02 09:23:56 0  1  890

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 0  0  926

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  592

Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use

明民 2017-10-10 17:04:14 0  2  1391

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

劉袁銘 2017-10-10 19:25:59 0  4  2944

mcrypt_get_key_size()

To use mcrypt_get_key_size() in php study, how to enable mcrypt_

劉袁銘 2017-10-10 19:47:34 0  1  1174

Detecting login status and preventing repeated login status in TP5 - My page is wrong

冥冥之中天注定 2017-10-10 22:49:15 0  0  1191

Issues with resending WeChat public account template messages?

For example: I am using PHP to develop WeChat public accounts. If I send a template message, the WeChat client may receive 1-3 messages. I checked Baidu and said that the WeChat server will resend in 5 seconds. How to solve this problem?

飛揚(yáng) 2017-10-11 08:00:11 0  0  1141

How to install php7

我無限黑暗里的小太陽▼ 2017-10-11 09:11:44 0  1  1145

Solve (no language limit)

A census taker asked a woman, "How many children do you have and how old are they?" The woman replied, "I have three children. Their ages multiplied is 36. The sum of their ages is equal to the house number of the segregated room." Census The enumerator immediately went to the ne...

路過 2017-10-11 10:20:08 0  1  1365

There is no WWW file in the phpStudy directory. Enter localhost in the website and the hello world solution will come out directly! I created the WWW folder in the root directory and then created an abc.php. localhost/abc.php still didn't come out and an error was reported. not found

<?phpphpinfo();?>

M..moli瞎 2017-10-11 11:45:27 0  7  5212

Find an authoritative and practical development tutorial or article on WeChat scan code authorization to log in to the website

Find an authoritative and practical development tutorial or article on WeChat scan code authorization to log in to the website

極世 2017-10-11 12:33:15 0  1  1684

How to uninstall phpstudy.

whlyx 2017-10-11 15:53:03 0  2  1764

An error warning appears when phpstudy enters the database

Hirtdye 2017-10-11 17:12:35 0  2  1622

Problem with bool value output

<?php//In fact, it can be lowercase, but it is difficult to distinguish, so we stipulate that it is usually uppercase define('xiaoxie',true);echo xiaoxie;$hello=flase;echo $hello;?>Why is the output result of the previous code 1? The subsequent output result is false, shouldn't it be 0?

益?zhèn)?2017-10-11 20:37:54 0  1  1720

PHP source code encryption problem

I just finished writing a website, and the concept of source code encryption has always been vague, and there is very little online information. I would like to know the following questions: 1: There are encryption tools on the Internet. This is easy to understand, but some of them are just function...

按鍵盤手指磨破皮 2017-10-12 01:29:15 0  2  1698