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- CSS style coverage tips: Accurately modify the background color of nested Div without class names
- This article explains in detail how to use the CSS direct subselector (>) to accurately cover the background color of multi-layer nested, non-specific class names. For scenarios where HTML cannot be modified, we emphasize the importance of correctly building selector chains, avoid misuses such as nth-child, ensure that the style can be applied effectively, and achieve precise control of complex DOM structures.
- HTML Tutorial . Web Front-end 636 2025-09-18 17:24:01
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- Automatic login implementation tutorial after PHP registration
- This article will introduce in detail how to implement the automatic login function after successful PHP registration. The main steps include: make sure that Session is enabled, setting Session variables after registration is successful, and redirecting the user to the homepage. By setting the Session variable, the user's login status is simulated, so that users can access pages that require login permissions without manually logging in after registering. This article provides detailed code examples to help you quickly implement this function.
- PHP Tutorial . Backend Development 605 2025-09-18 17:18:02
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- Use PHP cURL and JSON parsing to get nested data from the API
- This article details how to use PHP cURL to send API requests and parse returned JSON data, especially how to iterate through arrays and extract multi-layer nested specific field values, such as song titles and artist names, to efficiently handle complex API responses.
- PHP Tutorial . Backend Development 599 2025-09-18 17:09:01
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- Practical Guide to Fixing the 403 Error in Getting User Information in WooCommerce REST API
- When using the WooCommerce REST API to obtain user information, if you encounter a 403 error of "woocommerce_rest_cannot_view", even if the API key has read and write permissions and uses Basic Auth, the problem may be that the server fails to correctly parse the Authorization header. This tutorial will provide detailed explanations on how to effectively solve this problem by passing the consumer key and key as URL query parameters, and provide relevant practical suggestions.
- PHP Tutorial . Backend Development 373 2025-09-18 17:00:02
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- PHP dynamically generates flexible Bootstrap raster layouts
- This tutorial is designed to explain in detail how to dynamically build a Bootstrap raster system using PHP to adapt to different numbers of display items and number of items per row, enabling flexible and responsive layouts. The article will cover core logic, sample code, and key considerations to ensure that the generated HTML structure complies with the Bootstrap specification and automatically adjust the column width when the number of elements on the last row is insufficient.
- PHP Tutorial . Backend Development 950 2025-09-18 16:57:01
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- Troubleshooting and repairing problems in PHP login attempt failed counting
- This article aims to solve the problem of inaccurate counting of PHP login attempts. By analyzing common error causes and providing correct code examples, we can help developers implement the correct login attempt counting function and redirect to the registration page after the specified number of times is reached. This article will focus on session management and form data delivery to ensure the persistence and accuracy of counters.
- PHP Tutorial . Backend Development 758 2025-09-18 16:54:01
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- Tutorial on implementing 'and' conditional query in Symfony Query Builder
- This article explores in-depth how Symfony Query Builder correctly implements "And" conditional query when dealing with many-to-many relationships. The article analyzes common misunderstandings and reasons for directly using AND conditions, and provides an effective solution for dynamically building queries. By connecting the same association table multiple times and using different aliases, it ensures that entities that meet multiple association attributes can be accurately filtered out.
- PHP Tutorial . Backend Development 201 2025-09-18 16:51:02
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- Start multiple running scripts simultaneously in the terminal and keep running after the terminal session is finished
- This article describes a way to run multiple PHP scripts simultaneously on a Linux server and keep running after the terminal session is over. By creating a separate session using the screen command and then starting the script in parallel within that session, you can ensure that the script continues to run in the background, even if the terminal is shut down or the server is restarted. This approach simplifies the process of managing multiple resident tasks and allows users to view the output of the script at any time.
- PHP Tutorial . Backend Development 910 2025-09-18 16:48:01
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- How to retain leading zeros in PHP
- This tutorial shows how to add numbers in PHP and preserve leading zeros in the result. Mainly implemented by str_pad() function, which allows you to fill the specified characters on the left or right side of the string to achieve the desired string length. This article will provide detailed code examples and explanations to help you understand and apply this method.
- PHP Tutorial . Backend Development 520 2025-09-18 16:42:01
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- How to send attachments by mail in Laravel Nova
- This article details how to send attachments through custom Action-triggered Mailable mail in Laravel Nova. The core lies in using the attach() method of the Mailable class, combining file path information obtained from Nova resources. The article provides specific code examples and emphasizes key precautions such as file storage, path acquisition and permissions, aiming to help developers realize the email attachment function.
- PHP Tutorial . Backend Development 987 2025-09-18 16:33:01
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- Protect DataTables Ajax data source: Prevent unauthorized direct access
- This tutorial explores how to protect DataTables' AJAX data source to prevent users from getting raw JSON data through direct access to the URL. We will introduce a security mechanism based on the PHP $_SESSION variable. By setting temporary flags in the session, we ensure that the data interface only responds when DataTables initiates a legitimate request, effectively preventing unauthorized data crawling and leakage.
- PHP Tutorial . Backend Development 566 2025-09-18 16:30:01
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- Blank page appears after submission of Laravel form: In-depth analysis and solution
- When a blank page appears after a Laravel form is submitted, it is usually due to the improper configuration of the form's action attribute, which causes the request to be routed correctly to the expected controller method. This article will explore the meaning of action="" in detail, explain the working mechanism of Laravel resource routing, and guide you on how to properly configure form action and place commit logic in the resource controller's store method, thereby solving the blank page problem and following Laravel's best practices.
- PHP Tutorial . Backend Development 836 2025-09-18 16:27:01
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- Tutorial on using multiple separators to split strings and preserve separators and order in PHP
- This tutorial details how to deal with string splitting in PHP with multiple delimiters and ensures that the type and original order of the delimiters are preserved during the splitting process. We will explore two main implementation strategies: one is to combine regular expressions and exploit functions for preprocessing, and the other is to implement it manually tokenized, and provide specific code examples and practical guidance to help developers parse complex strings efficiently.
- PHP Tutorial . Backend Development 831 2025-09-18 16:24:01
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- Guide to the CodeMirror Multiple Instances Correct Initialization
- This article will guide developers on how to properly initialize multiple CodeMirror editor instances in a webpage. In response to common loop error references to DOM elements, we will show the correct traversal and binding methods to ensure that each target textarea can be instantiated independently and accurately by CodeMirror, avoiding errors in which the content is only displayed in the first editor.
- HTML Tutorial . Web Front-end 897 2025-09-18 16:21:01
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