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<?php if(($sock = socket_create(AF_INET, SOCK_STREAM, 0)) < 0) { echo "failed to create socket: ".socket_strerror($sock)."n"; exit(); } if(($ret = socket_bind($sock,'127.0.0.1', 8888)) < 0) { echo "failed to bind socket: ".socket_strerror($ret)."n"; exit(); } if( ( $ret = socket_listen( ...

Installation and verification of JWT Auth in laravel   1. Use composer to install jwt, cmd to the project folder; Composer require tymon / JWT auth 1.0. * (here the version number is written according to your own needs) Install jwt, refer to official documentation https://jwt-auth.readthedocs.io/en/docs/laravel-installation/ 2. If the laravel v ...

Using PDO constructor to connect database and DSN <?php $dbms = 'mysql'; $dbname = 'test'; $user = 'root'; $pwd = '123456'; $host = 'localhost'; $dsn = "$dbms:host=$host;dbName=$dbname"; try{ $pdo = new PDO($dsn,$user,$pwd); echo 'pdo Successfully connected to database'; }catch(Exception $e){ echo $e->getMessage().'<br&gt ...

php connects to mysql database Five steps for PHP to access MYSQL database 1. Connect to MySQL database Using MySQL_ The connect() function establishes a connection to the MySQL server. 2. Select MySQL database Using MySQL_ select_ The db() function selects the database of the MySQL database server. 3. Execute SQL statement Using MySQL in the s ...

Verification details of php forms First of all, we process all the data submitted by the user through the htmlspecialchars() function of PHP. Converts special characters to HTML entities. This means that HTML characters such as < and > are replaced with & lt; and & gt. This prevents attackers from injecting HTML or JavaScript Code ...

BUG s have recently appeared online, and it is after server migration that a lua script that finds nginx cannot collect log data for nginx After sorting, it was found that because lua could not find the corresponding file, the nginx data could not be written to the file.That is, lua cannot create the create file directory and therefore cannot f ...

Install ThinkPHP6.0 cd to the project directory, and then do the following Prepare to install the framework: composer create project topthink / think thinkphp6.0 cd switch to the thinkPHP6.0 directory of PHP project Modify configuration file:. Env configuration file / / copy example.env Change to your own Open debug mode: app in. env_ DEBUG = ...

The input field mark introduced by PHP form element < input > Input field flag < input > The input field tag < input > is one of the most commonly used tags in forms. Common input field markers < input > include text box, button, radio button, check box, etc. type attribute values and examples and descriptions: 1. text e ...

Using FormData form data objects in H5, the name and value of all form elements in the form form form can be combined into a request string and submitted to the background.You can use js to simulate a series of form controls with some key-value pairs, or you can use the send() method of XMLHttpRequest to submit the form asynchronously. <bo ...

In the concurrency scenarios such as seckill and rush to buy, oversold may occur. There is no native concurrency solution in PHP language, so we need to use other methods to achieve concurrency control. Common solutions listed are: With queue, an extra process is set up to process the queue, and the concurrent requests are put into the queue. I ...