Home Backend Development PHP Tutorial 10 recommended articles about sizeof()

10 recommended articles about sizeof()

Jun 14, 2017 am 11:46 AM

1. Introduction In the previous article, we created a window from scratch. One of the very important steps is to register the window class, such as the following code: //Register window class BOOL Register(LPSTR lpClassName, WNDPROC wndProc) { WNDCLASSEX wce = { 0 }; wce.cbSize = sizeof(wce);            wce.cbClsExtra = 0; wce.cbWndExtra =&

1. 10 recommended articles about php sizeof()

10 recommended articles about sizeof()

Introduction: In the previous article, we created a window from scratch. One of the most important steps is to register the window class, as shown in the following code: //Register window class BOOL Register(LPSTR lpClassName, WNDPROC wndProc){    WNDCLASSEX ...

2. php array Chapter 4 Data processing-php array processing-Zheng Aqi

Introduction: php array: PHP Array Chapter 4 Data Processing - PHP Array Processing - Zheng Aqi: 1. Array processing: 1.1 Array creation and initialization: 1. The array() function creates an array. By default, element 0 is the first element of the array. The count() and sizeof() functions obtain the number of data elements 2. Use variables to create an array compact() to find the variable name in the current symbol table and add it to the output array. The variable name becomes the key name and the variable The content becomes the value of the key. Copy the code as follows:

3. Chapter 4 Data Processing - PHP Array Processing - Zheng Aqi_PHP Tutorial

Introduction: Chapter 4 Data Processing - PHP Array Processing - Zheng Aqi. 1. Processing of arrays: 1.1 Creation and initialization of arrays: 1. The array() function creates an array. By default, element 0 is the first element of the array. The count() and sizeof() functions obtain the of the data elements.

4. Detailed syntax of the PHP function sizeof()_PHP tutorial

Introduction: PHP function sizeof() Detailed explanation of the specific usage syntax. We pass the syntax for the PHP function sizeof(): sizeof(arrayname); Tips and Instructions Note: This function may return 0 if a variable is not set, but may also return 0 if a

5. PHPUnit Pocket Guide The Purpose of PHPUnit_PHP Tutorial

Introduction: PHPUnit Pocket Guide The Purpose of PHPUnit. So far, we have only two tests for Array and the built-in function sizeof(). When we start testing a large number of array_*() functions, we need a test for each one. We can start from scratch for each

6. php counts the number of array elements, the number of php arrays_PHP tutorial

Introduction: PHP counts the number of array elements and the number of PHP arrays. PHP counts the number of array elements, PHP array count(): counts the number of elements in the array; sizeof(): has the same purpose as count(), both functions can return the number of array elements

7. How to count the number of array elements in php, count the number of arrays in php_PHP tutorial

##Introduction: PHP method to count the number of array elements, PHP counts the number of arrays. PHP method to count the number of array elements, PHP counts the number of arrays count(): counts the number of elements in the array; sizeof(): has the same purpose as count(), both functions can return numbers

8. PHP Development Notes Series (9) - Array (3)

Introduction: PHP Development Notes Series ( 9) - Array (3) ??? I wrote two articles about the daily use of Php arrays. This article is "PHP Development Notes Series (9) - Arrays (3)" , mainly focusing on the size and sorting of the array. ??? 1. Get the array length ???The count() function returns the number of elements in the array. It is an alias of sizeof() and count(). It has the same function. ? file:count.php url: h

9. Chapter 4 Data Processing - PHP Array Processing - Zheng Aqi

Introduction: Chapter 4 Data Processing - PHP Array Processing -Zheng Aqi. 1. Processing of arrays: 1.1 Creation and initialization of arrays: 1. The array() function creates an array. By default, element 0 is the first element of the array. The count() and sizeof() functions obtain the of the data elements.

10. Detailed explanation of the specific usage syntax of the PHP function sizeof()

Introduction: The specific usage syntax of the PHP function sizeof() Detailed explanation. We pass the syntax for the PHP function sizeof(): sizeof(arrayname); Tips and Instructions Note: This function may return 0 if a variable is not set, but may also return 0 if a

[Related Q&A recommendations]:

c++ - Why sizeof() of pointer variables prints out 4;

c++ - Using the C compiler, how to set the int word length to be the same as the system word length

The above is the detailed content of 10 recommended articles about sizeof(). For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1664
14
PHP Tutorial
1268
29
C# Tutorial
1243
24
PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values ​​to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

Explain the difference between self::, parent::, and static:: in PHP OOP. Explain the difference between self::, parent::, and static:: in PHP OOP. Apr 09, 2025 am 12:04 AM

In PHPOOP, self:: refers to the current class, parent:: refers to the parent class, static:: is used for late static binding. 1.self:: is used for static method and constant calls, but does not support late static binding. 2.parent:: is used for subclasses to call parent class methods, and private methods cannot be accessed. 3.static:: supports late static binding, suitable for inheritance and polymorphism, but may affect the readability of the code.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

What are HTTP request methods (GET, POST, PUT, DELETE, etc.) and when should each be used? What are HTTP request methods (GET, POST, PUT, DELETE, etc.) and when should each be used? Apr 09, 2025 am 12:09 AM

HTTP request methods include GET, POST, PUT and DELETE, which are used to obtain, submit, update and delete resources respectively. 1. The GET method is used to obtain resources and is suitable for read operations. 2. The POST method is used to submit data and is often used to create new resources. 3. The PUT method is used to update resources and is suitable for complete updates. 4. The DELETE method is used to delete resources and is suitable for deletion operations.

How does PHP handle file uploads securely? How does PHP handle file uploads securely? Apr 10, 2025 am 09:37 AM

PHP handles file uploads through the $\_FILES variable. The methods to ensure security include: 1. Check upload errors, 2. Verify file type and size, 3. Prevent file overwriting, 4. Move files to a permanent storage location.

How does PHP type hinting work, including scalar types, return types, union types, and nullable types? How does PHP type hinting work, including scalar types, return types, union types, and nullable types? Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values ​​and handle functions that may return null values.

See all articles