Backend Development
PHP Tutorial
A comprehensive and detailed explanation of how PHP implements stack data structure examples
A comprehensive and detailed explanation of how PHP implements stack data structure examples
This article mainly introduces the stack data structure implemented by PHP, and analyzes the PHP definition stack and related operation skills such as stacking, popping, and traversing the stack in the form of examples. Friends who need it can refer to it. I hope it can help everyone.
Using PHP object-oriented thinking, the attributes of the stack include top, maximum storage number, and storage container (php array is used here).
The code is as follows: Several methods of pushing, popping, and traversing the stack are implemented:
<?php
class Stack{
const MAXSIZE = 4;// 栈最大容量
private $top = -1;
private $stack = array();// 利用数组存储数据
public function __construct(){
$this->stack = array();
}
// 入栈
public function push($ele){
if ($this->top >= self::MAXSIZE-1){
echo 'stack is full...';
return false;
}
$this->stack[++$this->top] = $ele;// 此处必须是++i，先计算再使用
}
// 出栈，返回出栈元素
public function pop(){
if ($this->top == -1){
echo 'stack is empty...';
return false;
}
$ele = $this->stack[$this->top];
unset($this->stack[$this->top--]);// 此处必须是i--，先使用再计算（注意出栈和入栈的区别）
return $ele;
}
// 遍历栈
public function show(){
if ($this->top == -1){
echo 'stack is empty...';
return false;
}
for($i=$this->top; $i>-1; $i--){
echo $this->stack[$i].'<br/>';
}
}
}
$stack = new Stack;
$stack->push(1);
$stack->push(2);
$stack->push(3);
$stack->push(4);
//print_r($stack);
$stack->show();
$a = $stack->pop();
$a = $stack->pop();
$a = $stack->pop();
$stack->show();Running results:
4
3
2
1
1
Related recommendations:
Code examples of how to implement stack data structure and bracket matching algorithm in php Detailed explanation
The code for using arrays to implement stack data structures in PHP
Plastic linear table push and pop example analysis_PHP tutorial
The above is the detailed content of A comprehensive and detailed explanation of how PHP implements stack data structure examples. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1673
14
1429
52
1333
25
1278
29
1257
24
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
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
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.
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.
PHP and Python: Different Paradigms Explained
Apr 18, 2025 am 12:26 AM
PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
PHP and Python: Code Examples and Comparison
Apr 15, 2025 am 12:07 AM
PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.
PHP: Handling Databases and Server-Side Logic
Apr 15, 2025 am 12:15 AM
PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.
