current location：Home > Technical Articles > Daily Programming > PHP Knowledge
- Direction：
- All web3.0 Backend Development Web Front-end Database Operation and Maintenance Development Tools PHP Framework Daily Programming WeChat Applet Common Problem Other Tech CMS Tutorial Java System Tutorial Computer Tutorials Hardware Tutorial Mobile Tutorial Software Tutorial Mobile Game Tutorial
- Classify：
- PHP tutorial MySQL Tutorial HTML Tutorial CSS Tutorial
-
- Convert fields to JSON and append to request when submitting Laravel form
- This document is intended to guide Laravel developers how to convert specific field data into JSON format when form is submitted and append it to the final request data. Through this article, you will learn how to effectively process nested data and store it in JSON format, thereby optimizing data structures and processing flow.
- PHP Tutorial . Backend Development 377 2025-08-24 11:21:01
-
- How to use for loops in php
- The answer is to use a for loop to repeat the code blocks in PHP to specify the number of times. The for loop is suitable for cases where the number of iterations is known. Its syntax structure is for (initialization; condition; increment) {execute code}, initialize setting counter, condition determines whether to continue looping, and incrementally update counter. For example for($i=1;$i
- PHP Tutorial . Backend Development 821 2025-08-24 11:18:01
-
- How to get datetime aggregated data by user time zone in MySQL and PHP
- This article elaborates on strategies for handling multi-time zone date-time aggregation in MySQL databases and PHP applications. By explaining MySQL's CONVERT_TZ function and its dependence on time zone system tables, as well as the powerful time zone conversion capabilities provided by the PHP DateTime class, this tutorial aims to guide developers how to accurately filter, group and aggregate data based on the user-specified time zone, thereby avoiding calculation errors caused by time zone differences.
- PHP Tutorial . Backend Development 659 2025-08-24 09:57:00
-
- Api-Platform: Best practices for adding custom PDF download routes to resources
- This article explores best practices for adding custom routing to existing resources such as Invoice in Api-Platform to provide non-standard output formats such as PDF documents. Unlike configuring the output format directly in ApiResource, we recommend a decoupling method: simplify implementation and optimize maintainability by exposing the document URL in the entity and using a separate Symfony controller to handle PDF generation and file response.
- PHP Tutorial . Backend Development 787 2025-08-24 09:09:01
-
- How to use cURL in php
- cURLinPHPenablessendingHTTPrequests,fetchingAPIdata,anduploadingfiles.Initializewithcurl_init(),setoptionslikeCURLOPT_URLandCURLOPT_RETURNTRANSFER,useCURLOPT_POSTforPOSTrequests,sendJSONwithproperheaders,handleerrorsviacurl_errno()andHTTPcodeswithcur
- PHP Tutorial . Backend Development 250 2025-08-24 08:32:01
-
- Data sharing between CodeIgniter controller methods: attributes and return value policies
- This article discusses in detail how to efficiently pass and share data between different methods in CodeIgniter controllers. By comparing the two main strategies for using controller class attributes and method return values, the article provides clear code examples, applicable scenario analysis and precautions, aiming to help developers build controller logic with clear structure and clear data flow.
- PHP Tutorial . Backend Development 882 2025-08-24 07:12:01
-
- How to handle contact form submissions and send email in php
- CreateanHTMLformwithname,email,subject,andmessagefields.2.ProcessdatainPHPusingfilter_varandhtmlspecialcharsforsanitization.3.Validateinputsanduseproperheaders.4.Sendemailviamail()orpreferablyPHPMailerwithSMTPforbetterdeliverability.5.AddCSRFprotecti
- PHP Tutorial . Backend Development 900 2025-08-24 06:00:02
-
- How to execute an UPDATE query in php
- Using MySQLi object-oriented method: establish a connection, preprocess UPDATE statements, bind parameters, execute and check the results, and finally close the resource. 2. Using MySQLi procedure method: connect to the database through functions, prepare statements, bind parameters, perform updates, and close the connection after processing errors. 3. Use PDO: Connect to the database through PDO, set exception mode, pre-process SQL, bind parameters, perform updates, use try-catch to handle exceptions, and finally release resources. Always use preprocessing statements to prevent SQL injection, verify user input, and close connections in time.
- PHP Tutorial . Backend Development 1017 2025-08-24 05:04:03
-
- What are public, private, and protected in php
- Public members can be accessed at will; 2. Private members can only be accessed within the class; 3. Protected members can be accessed in classes and subclasses; 4. Rational use can improve code security and maintainability.
- PHP Tutorial . Backend Development 564 2025-08-24 03:29:01
-
- What are interfaces in php
- AninterfaceinPHPdefinesacontractformethodsaclassmustimplement.Usingtheinterfacekeyword,itspecifiesmethodsignatureswithoutimplementation,ensuringconsistentstructureacrossunrelatedclasses.Forexample,interfaceAnimalrequiresmakeSound()andmove()methods.Cl
- PHP Tutorial . Backend Development 236 2025-08-24 01:53:01
-
- The root cause and solution for failed capture of Linux command stdout in WSL environment
- This article discusses in depth the problem that stdout cannot be captured and error codes are returned when calling WSL commands through exec functions in Windows PHP environment. The core reason is that web server services (such as Apache) run as an NT Authority\SYSTEM account, and WSL does not support starting processes under this account. The tutorial analyzes the internal mechanisms of PHP exec in detail and provides a solution to change the Web server service account to a standard user account, while highlighting security best practices for web service account permission management in production environments.
- PHP Tutorial . Backend Development 511 2025-08-23 18:30:02
-
- Avoid splitting strings in double quotes: PHP tutorial
- This tutorial is designed to solve how to avoid splitting contents in double quotes (or single quotes) when splitting strings using the exploit() function in PHP. With a custom parser, we can implement more precise string splitting to meet specific needs, such as parsing strings containing attribute values. The article will provide detailed code examples and steps to help readers understand and apply the method.
- PHP Tutorial . Backend Development 825 2025-08-23 18:24:01
-
- Integrating Api-Platform with custom binary outputs (such as PDF): Best Practices
- This article explores best practices for providing custom binary outputs (such as PDF documents) for resources in Api-Platform. By treating binary files as a URL attribute of the resource and using the standard Symfony controller to handle actual binary content generation and response, it can effectively avoid Api-Platform's complex custom encoder configuration while maintaining the clarity and maintainability of the API.
- PHP Tutorial . Backend Development 658 2025-08-23 18:21:01
-
- PHP multidimensional array traversal and HTML tag generation tutorial
- This tutorial explains in detail how to efficiently traverse multidimensional associative arrays in PHP and generate structured HTML tags based on the contents of the array. The article analyzes common traversal misunderstandings, especially when the internal array is an associative array, how to avoid unnecessary nested loops and provide the correct practice of using a single foreach loop and direct key access to ensure that the expected single, complete HTML structure is generated for each data item.
- PHP Tutorial . Backend Development 647 2025-08-23 18:15:00
Recommended Articles
Tool Recommendations
jQuery enterprise message form contact code
jQuery enterprise message form contact code is a simple and practical enterprise message form and contact us introduction page code.
form button
2024-02-29
HTML5 MP3 music box playback effects
HTML5 MP3 music box playback special effect is an mp3 music player based on HTML5 css3 to create cute music box emoticons and click the switch button.
Player special effects
2024-02-29
HTML5 cool particle animation navigation menu special effects
HTML5 cool particle animation navigation menu special effect is a special effect that changes color when the navigation menu is hovered by the mouse.
Menu navigation
2024-02-29
jQuery visual form drag and drop editing code
jQuery visual form drag and drop editing code is a visual form based on jQuery and bootstrap framework.
form button
2024-02-29
Organic fruit and vegetable supplier web template Bootstrap5
An organic fruit and vegetable supplier web template-Bootstrap5
Bootstrap template
2023-02-03
Bootstrap3 multifunctional data information background management responsive web page template-Novus
Bootstrap3 multifunctional data information background management responsive web page template-Novus
backend template
2023-02-02
Real estate resource service platform web page template Bootstrap5
Real estate resource service platform web page template Bootstrap5
Bootstrap template
2023-02-02
Simple resume information web template Bootstrap4
Simple resume information web template Bootstrap4
Bootstrap template
2023-02-02
Cute summer elements vector material (EPS PNG)
This is a cute summer element vector material, including the sun, sun hat, coconut tree, bikini, airplane, watermelon, ice cream, ice cream, cold drink, swimming ring, flip-flops, pineapple, conch, shell, starfish, crab, Lemons, sunscreen, sunglasses, etc., the materials are provided in EPS and PNG formats, including JPG previews.
PNG material
2024-05-09
Four red 2023 graduation badges vector material (AI EPS PNG)
This is a red 2023 graduation badge vector material, four in total, available in AI, EPS and PNG formats, including JPG preview.
PNG material
2024-02-29
Singing bird and cart filled with flowers design spring banner vector material (AI EPS)
This is a spring banner vector material designed with singing birds and a cart full of flowers. It is available in AI and EPS formats, including JPG preview.
banner picture
2024-02-29
Golden graduation cap vector material (EPS PNG)
This is a golden graduation cap vector material, available in EPS and PNG formats, including JPG preview.
PNG material
2024-02-27
Home Decor Cleaning and Repair Service Company Website Template
Home Decoration Cleaning and Maintenance Service Company Website Template is a website template download suitable for promotional websites that provide home decoration, cleaning, maintenance and other service organizations. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-05-09
Fresh color personal resume guide page template
Fresh color matching personal job application resume guide page template is a personal job search resume work display guide page web template download suitable for fresh color matching style. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-29
Designer Creative Job Resume Web Template
Designer Creative Job Resume Web Template is a downloadable web template for personal job resume display suitable for various designer positions. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
Modern engineering construction company website template
The modern engineering and construction company website template is a downloadable website template suitable for promotion of the engineering and construction service industry. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
