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 |

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