In PHP, using Socket extensions, we can implement network communication functions very flexibly, and even use it to create a basic network server. This article will focus on how to use socket_listen() and socket_accept() functions to build a simple TCP server.

We must be careful to avoid XSS (cross-site scripting attack) vulnerabilities when executing database queries and outputting data to HTML pages using PHP and MySQLi. This type of vulnerability usually occurs when directly outputting the content in the database to a web page without any escape or filtering.

pack() and unpack() are a pair of powerful functions that are often used to convert between binary data and human-readable formats. This article will take you through how to use these two functions to create a simple two-way data converter to realize the serialization and deserialization of data structures, which is suitable for file storage, network transmission and other scenarios.

When using MySQL database in PHP, the fetch_object() method of mysqli_result is a very common operation. It can convert query results into object format, making it easier for us to process data in an object way. Typically, the fetch_object() method returns a standard class stdClass object, but it can also be configured to return a custom class object. So, specifically, does the fetch_object() method return stdClass or a custom class? What are the differences between them? How should these two methods be used in actual development?

Many times we need to get data from the database and return it in JSON format, such as providing an API interface for the front-end. To do this, you can use the mysqli extension to execute the query, and then use the json_encode() function to encode the result array into a JSON string.

fputcsv() is a built-in function in PHP that writes the data of an array into a file and formats it into CSV format. Each row array is converted to CSV format lines, and each element in the array is separated by a comma (or a specified separator).

During PHP development, the mysqli_result object is usually a collection of data obtained from database queries. It is a good practice to further verify and filter the query results if we extract data from forms input by users or external sources and store them into the database. This article will introduce how to use mysqli and filter_var() function to safely process query results.

In PHP, get_defined_constants() is a very practical function that can be used to get all defined constants in the current script. This function is especially useful when we are debugging or want to understand the state of constants in the running environment.

When dealing with multibyte strings (such as UTF-8 encoded Chinese, Japanese, Korean, etc.), standard regular expression functions may not handle character set issues correctly. To solve this problem, PHP provides a set of multibyte string functions, one of which is mb_eregi_replace. This article will explain how to use this function to replace all numbers in a string with specified characters, such as an asterisk (*).

When using PHP for image processing, the GD library provides a wealth of functions for drawing operations. By default, edges may appear jagged when we draw a graph, especially when drawing slashes or polygons. To achieve a smoother graphic effect, the anti-alias function can be enabled using the imageantialias() function. This article will explain in detail how to use the imageantialias() function with the imagefilledpolygon() function to draw a smooth edge fill polygon.

When developing PHP website applications, we often need to dynamically display the data obtained from the database to the front end, and we hope that after the user refreshes or leaves the page, this data can be stored persistently to prevent loss. This can be achieved very easily by combining the mysqli_result function with PHP's Session storage. This article will introduce in detail how to use these two for dynamic display and persistence of data.

In website development, paging function is a very common requirement. Pagination can effectively reduce the time for page loading and make the user experience smoother. This article will introduce how to use the mysqli_result function in PHP to implement the paging function with LIMIT.

Optimizing database query performance is a common challenge when developing high-performance PHP applications. Especially when processing large amounts of data, repeatedly executing the same query can greatly slow down the application response time. At this time, cached query results become an effective optimization method. This article will explore how to optimize PHP application performance by caching the mysqli_result query results to Redis or file systems.

When dealing with large mysqli_result result sets, you may encounter performance and memory footprint bottlenecks. Especially when the data set is very large, conventional processing methods (such as loading all data into memory at once) can cause a program to degrade performance and even cause memory overflow. To improve this, we can use PHP generator to optimize the processing process.

How to use microtime() to test the specific time-consuming process of querying and reading data in mysqli_result?

In modern web development, the search function is a very important component. To improve the user experience, many websites display some search suggestions below the search box to help users find the information they want more quickly. This article will use a simple example to show how to implement a backend search suggestion interface function using PHP and mysqli_result function.

When developing using PHP, especially in the MVC (Model-View-Controller) architecture, how to manage database operations is a key issue. The mysqli extension is a common way to access MySQL databases in PHP, and the mysqli_result function is used to get the result set from a database query. In MVC architecture, if database queries and result sets are processed directly in the controller, it may cause the code to be bloated, difficult to maintain, and even difficult to scale. Therefore, how to elegantly encapsulate the mysqli_result function to improve the maintainability and scalability of the code is a problem that developers need to solve.

The str_split() function is a very practical tool that can split a string into an array of single characters. This function is especially useful when strings need to be processed by character characters. Next, we will introduce the basic usage of the str_split() function and parse its functions with some examples.