Programmer Think

1. Conditional control statement 1. if statement if(expression){ Statement 1; Statement 2; } rand() function: get a random integer. <?php $num=rand(1,31); if ($num%2==0){ echo "\$num=$num"; echo '<br>$num It's an even number';#Single quotation marks output an ordinary string } ?> 2. If else s ...

My five handwritten network models, welcome comments and suggestions from all gods; Environment preparation: php7.4, swoole4.8.2. (Here I use mac)         Hobrew installation: Install Homebrew Tutorial-Accent Maple-Blog Park in China under mac         php installation: Install php7.4+mysql5.7+nginx e ...

For beginners of Docker, the terms Docker start, docker run and docker create may be confusing. This article explains the differences through examples. catalogue The difference between Docker running, Docker starting and Docker creation If you are not familiar with docker and learn it through various tutorials, you may encounter terms such as ...

Article catalog1. Understand the harm of web attacks.2. Share three common attacks and corresponding defense methods1. Harm of Web attack.What are the hazards of web attacks?A minor attack may steal users' information from your website. Serious web attacks can delete the database, paralyze the website and so on.2. Types of sharing attacks: sql ...

Summary seen by boss General PHP interviews will ask about front-end knowledge, especially VUE. You need to know some front-end content PHP: What are CSRF and XSS attacks answer: 1.CSRF Basic concept, abbreviation and full name of CSRF(Cross-site request forgery) Cross-site request forgery 2.CSRF Attack principle of User is a website A ...

Create a new PHP file: a.php <?php $a = "a.txt"; include("php://filter/resource=" . $a); Create a new file in the same directory: a.txt (the content is <? PHP phpinfo();? > base64 encoding) PD9waHAgcGhwaW5mbygpOz8+ Next breakpoint in the related function of the corresponding file: [data] Post key codes: php_stream * php_strea ...

preface In the penetration test, sometimes the command cannot be executed after getting the webshell. In order to successfully raise the right, we need to bypass disable_function disable_ Introduction to function disable_ Functions is a setting option in php.ini. It can be used to set the PHP environment to prohibit the use of some fu ...

Work plan for March No. 3.8 Build and install nextcloud development environment through docker compose Completed. No. 3.9 There are two ways to develop new apps in apps. One is through the application skeleton generator app store , generate a skeleton app online. Another way is to download the framework on Github app-tutorial. No. 3.10 L ...

Learning ideas of YII deserialization chain: The first choice to learn deserialization is to find the chain in the yii framework. This is also a simple and slightly clear reproduction attempt to summarize the chains dug by other bosses Article 1: CVE-2020-15148 (0day) Idea: First, we must construct a chain according to a deserialized point. ...

Enter the topic Prompt to log in when posting. The password is 666 in bp Then, the posting form is very similar to the secondary injection of the previous question. First, construct the sql statement, and then output it in the message interface I tried it a little, but I couldn't leave a message if there was a problem After finding such a s ...