thinkphp implementation of array paging example_PHP tutorial
Paging is implemented under the thinkphp framework . The company's website is based on the Thinkphp framework. I have been hearing about thinkphp for a long time and finally had the opportunity to put it into practice. thinkphp is based on MVC architecture. MVC is familiar to any ITers, model-view-controller. It handles logic and data separately, eliminating a lot of tedious processes. In fact, the official information has introduced in detail how to paginate, portal: http://document.thinkphp.cn/manual_3_2.html#data_page
, but it does not apply when the data has been taken out from the DB. And when converting to an array, I have been exposed to PHP for a full 2 months, and I have been exposed to thinkphp for only 3 weeks. I spent a lot of time on official documents to get familiar with thinkphp. It can be regarded as a worker who sharpens his sword and chops firewood. Here the official documents are explained as a comparison:
(only the first method in the document is cited): Using the Page class and the limit method, the code is as follows:
$User = M('User'); // Instantiate User object
$count= $User->where('status=1')->count();// Query the total number of records that meet the requirements
$Page = new ThinkPage($count,25);//Instantiate the paging class and pass in the total number of records and the number of records displayed on each page (25)
$show = $Page->show();// Display output in paging
// Perform paging data query. Note that the parameters of the limit method must use the attributes of the Page class
$list = $User->where('status=1')->order('create_time')->limit($Page->firstRow.','.$Page->listRows )->select();
$this->assign('list',$list);//Assign data set
$this->assign('page',$show);// Assign paging output
$this->display(); // Output template
The basic idea is to first calculate the total number of records, and then divide the pages according to the set number of records displayed on each page. It can be easily implemented using the Page class encapsulated by Thinkphp. The focus of the implementation is on line 11. The limit method extracts data from the query data according to certain rules. But what should I do if the data has been taken out?
We used the function array_slice() that comes with PHP. The definition is here: http://www.php.net/manual/en/function.array-slice.php
In fact, it is the array version of the limit method. Well, now that the tool is found, implementation is easy. Directly upload the code:
public function nodeslist(){
$portal = new PortalApi;
$nodelist = $portal->getNodeLists($this->uid);
$count = count($nodelist['data']);
$p = new Page($count, 10);
$lists = array_slice($nodelist['data'], $p->firstRow,$p->listRows);
$page = $p->show();
$this->assign('page',$page);
$this->assign('nodes',$lists);
$this->display();
}
The code has been deleted, only the implementation details are retained.
The getNodeLists method in line 3 retrieves data from the database and assigns it to the array nodelist.
Line 5 count calculates the number of array elements.
Line 6 passes in parameters to the Page class.
The array_slice function on line 7 replaces the limit method. The principle is the same.
Line 9 uses the assign method to assign a value to the template. The definition is here: http://document.thinkphp.cn/manual_3_2.html#assign
The same goes for line 10.
The following is the code in the view:
{$page}
If this is the only way, the displayed effect is not friendly. Then find out the definition of Page class:
//Page display customization
private $config= array(
'header' => 'Total %TOTAL_ROW% records',
'prev' => 'Previous page',
'next' => 'Next page',
'first'=> 'First page',
'last' => '...%TOTAL_PAGE%',
'theme'=> '%FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END%',
Add spaces before and after the page number. Now you can see the effect:
It goes well with the background. Of course, you can set different effects according to your own situation.

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.


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