In-depth analysis of PHP article content pagination_PHP tutorial
In-depth analysis of PHP article content pagination
There are two main ways to paginate article content:
Method 1: Paging according to word count control
Paging by word count is simple and easy to use, but the effect is not good.
General idea: First, set the maximum number of words that can be accommodated on each page; then, calculate the total number of words in the article content, and then calculate the total number of pages based on the total number of words and the maximum number of words on a single page. In this way, the entire preparation for paging has been completed.
The specific display content of each page can be achieved through content interception. For example: if the page contains 500 words and the article contains 2200 words, then when page=2 is passed to the page, the content between 501st and 1000th should be displayed.
This method is simple, but you may encounter trouble when displaying. Article content is usually accompanied by HTML tags. It is difficult to close the HTML tags when cutting content. If this work is not done well, the effect after paging will be It's obviously not good either.
Method 2: Paging through page breaks
Paging through page breaks is more ideal than the first method.
General idea: When editing the article content, insert page breaks (such as:
) into the content, and divide the article content when the article is displayed. Each part represents the content of a page. Control which page to display by passing parameters.
This method is more user-friendly. After all, the content intercepted by manually controlled paging is more in line with our thinking, and it can avoid the situation of unclosed HTML tags to a certain extent.
Page display
Paging display is one of the important means to send large batches of data to the client in batches. Usually, the result set in the database is artificially divided into segments for display.
Category
PHP paging is divided into list paging and content paging. Whether it is list paging or content paging, the basic principle is the same, and the data is sent to the client in batches.
pager.class.php
This is a simple PHP paging display class that currently supports two paging modes. One is the simplest common paging mode [Home Page] [Previous Page] [Next Page] [Last Page] mode, and the other is the classic paging mode, namely: [1][2][3][4][5 ][6][7][8][9][10][next page][last page].
How to use
The code is as follows | |||||||||
$pager = new pager($totalPage,$currentPage); // $pager object
|
The two categories of PHP paging mentioned above (list paging and content paging), I believe that list paging is no stranger to everyone. For content paging, the commonly used method is in the form of page breaks (for example:
) Split the content into multiple segments, find the total number of pages, and use the current page number to get the paging display list.
The code is as follows | |
/** var $each_disNums;//The number of items displayed on each page |

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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 originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

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.


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

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Dreamweaver Mac version
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

WebStorm Mac version
Useful JavaScript development tools