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Article Introduction：PHP operates classes based on session and cookie user login status, sessioncookie. php based on session and cookie user login status operation class, sessioncookie 1. User login status operation class UserLogin? php final class UserLogin { public function __construct() { } publi

2016-07-12 comment 0  963

Article Introduction：PHP implements a complete instance of the Model base class based on mysqli, phpmysqlimodel base. PHP implements a complete example of the Model base class based on mysqli, phpmysqlimodel base This article describes an example of PHP implementing the Model base class based on mysqli. Share it with everyone for your reference, the details are as follows: DB.c

2016-07-12 comment 0  1052

Article Introduction：PHP operates class code based on session and cookie user login status, sessioncookie. PHP code based on session and cookie user login status operation class, sessioncookie 1. User login status operation class UserLogin phpfinal class UserLogin {public function __construct() {}pub

2016-07-12 comment 0  1078

Article Introduction：Retrieving DOM Elements Based on Class NameIn PHP DOM, extracting elements with specific class names is essential. This question presents a...

2024-12-04 comment 0  637

Article Introduction：Dynamically Creating PHP Objects from StringsIntroduction:In PHP, it is possible to create objects of a specific class dynamically based on a...

2024-11-14 comment 0  578

Article Introduction：Finding Elements by Class Name in DOMWhen working with a PHP DOM node, you may need to access sub-elements based on their class names. To...

2025-01-03 comment 0  950

Article Introduction：Getting DOM Elements by Classname Using PHP DOMWhen working with PHP DOM, obtaining specific elements within a node based on their class is...

2024-12-05 comment 0  344

Article Introduction：Best Practices for Retrieving DOM Elements by Class NameIn PHP DOM, obtaining a sub-element within a DOM node based on its class name is a common...

2024-12-31 comment 0  999

Article Introduction：Retrieving DOM Elements by ClassnameWhen navigating HTML documents using PHP DOM, accessing elements based on their class names can be crucial....

2024-12-05 comment 0  647

Article Introduction：Object Creation with Dynamic Class NamesIn PHP, we may encounter situations where we need to create an object instance based on a string value...

2024-11-27 comment 0  433

Article Introduction：This article explains PHP 7's autoloading, using spl_autoload_register() to load classes on demand. It details best practices like namespace-based autoloading and caching for performance optimization, addresses common issues (e.g., class not found

2025-03-10 comment 0  1017

Article Introduction：This article discusses two approaches for calculating a user's age based on their birth date: one using SQL and the other using PHP. The SQL approach involves utilizing the TIMESTAMPDIFF() function, while the PHP approach employs the DateTime class a

2024-10-24 comment 0  1182

Article Introduction：This article discusses two methods for determining the age of an individual based on their date of birth using PHP and MySQL. The PHP method employs the DateTime class to compute the age difference. The MySQL method utilizes the TIMESTAMPDIFF() funct

2024-10-24 comment 0  372

Article Introduction：This article presents multiple methods to compute a user's age based on their date of birth using PHP and MySQL. It compares approaches utilizing the Object-Oriented DateTime Class, Procedural Date Functions, and MySQL queries, providing code example

2024-10-24 comment 0  915

Article Introduction：This article continues our exploration of Yii Framework's CComponent class, focusing on event-driven programming in PHP. This is part 2 of a three-part series demonstrating how Yii leverages a component-based architecture to manage properties, confi

2025-03-01 comment 0  1074

Article Introduction：CSS selector is a key tool for precise control of web elements in front-end development. 1. The basic selector includes element selectors (such as p), class selectors (such as .btn) and ID selectors (such as #header), which are used to match tags, reusable class names and unique IDs, respectively, and the difference is priority and usage scenarios; 2. Combination selectors achieve more precise selection through descendants (such as divp), offspring (such as ul>li), adjacent brothers (such as h1 p) and general brothers (such as h1~p) relationships; 3. Attribute selectors select elements based on attribute values, such as [type="text"], [href] and [class*="col-"]

2025-07-03 comment 0  311

Article Introduction：Key Takeaways PSR-0 and PSR-4 are autoloading standards in PHP, with PSR-0 defining paths based on a class’s namespace and allowing underscores in class names, while PSR-4 aims to simplify the folder structure and remove remnants of PSR-0. PSR-4

2025-02-23 comment 0  305

Article Introduction：Laravel 11.35 introduces the Uri class based on the PHP League URI library. Uri simplifies the process of manipulating and processing URIs in Laravel applications and provides some convenient features about named routing. Basic Operation The core function of the Uri class is to create and manipulate URI strings, including queries, fragments, and paths: use Illuminate\Support\Uri; $uri = Uri::of('https://laravel-news.com') ->withPath('links') ->wit

2025-03-05 comment 0  789

Article Introduction：CSS selectors apply styles by matching elements in HTML structures. The main types include class selectors, ID selectors, attribute selectors, pseudo-classes and pseudo-elements. 1. The class selector starts with a dot (.) to match any element with a specific class name, which can be used in combination with the element type and avoid general naming; 2. The ID selector starts with a pound sign (#) to match the unique element in the page, and should be used with high priority with caution; 3. The attribute selector matches based on HTML attributes and their values, suitable for form or link filtering; 4. The pseudo-class starts with a colon (:) and applies styles according to the element status or location, such as:hover, :focus, etc.; 5. The pseudo-element starts with a double colon (::) and is used to modify part of the element's content or add the generated content.

2025-06-20 comment 0  263

Article Introduction：In PHP, there are two main methods: one is to use the DateTime class, and the other is to use the strtotime() function. 1. Use the DateTime class to be used for PHP5.3 and above, especially the DateTime::createFromFormat() method to parse strings in the specified format, such as $date=DateTime::createFromFormat('Y-m-d','2024-04-05'); 2. Use the strtotime() function to be suitable for processing natural language formats, such as strtotime("nextFriday"), but it is based on

2025-07-07 comment 0  623