Found a total of 10000 related content
How to Create Classes and Objects in PHP 7?
Article Introduction：This article explains class and object creation in PHP 7. It details the differences between classes (blueprints) and objects (instances), illustrates object-oriented programming principles (encapsulation, abstraction, inheritance, polymorphism), a
2025-03-10
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409
Re-introducing PDO: the Right Way to Access Databases
Article Introduction：PHP Data Objects (PDO): A Comprehensive Guide to Database Interaction
This article provides a thorough guide to using PHP Data Objects (PDO) for database interaction. PDO offers an object-oriented approach, enhanced security, and improved portabilit
2025-02-17
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785
What is stdClass in PHP and What is its Purpose?
Article Introduction：stdClass in PHP: A Deep Dive into its PurposestdClass, often referred to as a standard class, holds a significant place in PHP's object-oriented...
2024-12-20
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983
How to Calculate Age from a Given Birth Date?
Article Introduction：This article demonstrates how to extract a user's age from their birth date, which is often stored in database user profiles. It presents various methods using PHP object-oriented and procedural approaches, along with MySQL. The main issue addressed
2024-10-24
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592
PHP Extension Development with PHP-CPP: Object Oriented Code
Article Introduction：This article continues the exploration of building PHP extensions using PHP-CPP, focusing on object-oriented features. We'll create a Complex number class to illustrate the library's capabilities.
To begin, we'll adapt the PHP-CPP project template.
2025-02-21
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385
python sqlalchemy orm example
Article Introduction：First, install SQLAlchemy and use its ORM to define the model, create tables, insert and query data: 1. Define the User model and create the SQLite database and table structure; 2. Create a session and add a single or multiple user data and submit it; 3. Use the query method to query all, conditions, scope and fuzzy matching users; 4. Update data by modifying object properties or calling the update method; 5. Use the delete method to delete the specified user; 6. Close the session after the operation is completed; finally submit the changes through session.commit(), and the entire process realizes the database addition, deletion, modification and query operations, and can be adapted to MySQL or PostgreSQL to simplify database operations in an object-oriented manner.
2025-07-29
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860
How to connect PHP script to MySQL database
Article Introduction：In online form development, connecting PHP code with MySQL database is a common operation. User form data needs to be collected and added to the database. This article introduces two commonly used PHP and MySQL database connection methods.
PHP and MySQL database connection
To connect MySQL database to PHP, you need to install MySQL, database management tools and PHP on your computer. The two most commonly used connection methods are MySQLi and PDO.
First, we introduce the easier MySQLi to use.
First create a MySQL database, here we use TablePlus. TablePlus is a convenient database management tool that handles a variety of databases in a single interface. Through its user-friendly interface,
2025-04-11
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732
Collection Classes in PHP
Article Introduction：Core points
PHP collection class is an object-oriented alternative to traditional array data structures, providing a structured way to manage object groups and providing built-in data manipulation methods.
The basic collection class should provide methods for adding, retrieving, and deleting items, as well as methods for determining whether the collection size and given keys exist in the collection.
Collection classes can improve performance, especially when working with large datasets, because they use delayed instantiation, creating elements in the array only when needed, saving system resources.
Collection classes are especially useful when working with databases using PHP, because they can manage large datasets more efficiently and make the code easier to read and maintain.
Collection classes are object-oriented alternatives to traditional array data structures. Similar to arrays,
2025-02-23
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678
What is inheritance in PHP object-oriented programming?
Article Introduction：Inheritance in PHP object-oriented programming means that one class (subclass) can inherit the properties and methods of another class (parent class) to implement code reuse and clearer structure. 1. Create subclasses using extends keyword; 2. Subclasses can call parent class methods and modify their behavior through rewriting; 3. Applicable to "is-a" relationships to avoid deep inheritance hierarchy and tight coupling. For example, the Dog class inherits the Animal class and overrides the speak() method, which can both reuse code and customize functions.
2025-06-22
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872
