Table of Contents
回复讨论(解决方案)
Home Backend Development PHP Tutorial 我如何把php得到的数据进行分类呢?

我如何把php得到的数据进行分类呢?

Jun 20, 2016 pm 12:48 PM

<?php$con = mysql_connect("localhost","root","123");if (!$con)  {  die('Could not connect: ' . mysql_error());  }mysql_select_db("task", $con);mysql_query("set names utf8");$result = mysql_query("SELECT * FROM tesk limit 0,10 ");echo "<table border='1'><tr><th>time</th><th>id</th><th>name</th><th>task</th><th>remark</th></tr>";while($row = mysql_fetch_array($result)){  echo "<tr>";  echo "<td>" . $row['date'] . "</td>";  echo "<td>" . $row['id'] . "</td>";  echo "<td>" . $row['name'] . "</td>";  echo "<td>" . $row['task'] . "</td>";   echo "<td>" . $row['remark'] . "</td>";  echo "</tr>";  }echo "</table>";<a herf=“”>下一页</a> mysql_close($con);?>
Copy after login

新手,求各位同仁指教


回复讨论(解决方案)

你可以从数据结构上进行分类,你现在的表字段是 日期,ID,姓名,工作,备注, 你可以再加一个分类,然后在做数据添加的时候,就要先把这条数据归于哪一类做好,这样以后你要获取哪一类数据就很容易了。

你可以从数据结构上进行分类,你现在的表字段是 日期,ID,姓名,工作,备注, 你可以再加一个分类,然后在做数据添加的时候,就要先把这条数据归于哪一类做好,这样以后你要获取哪一类数据就很容易了。


可是我要实现的是页面的分页啊,比如上一页,下一页

究竟是 分类,还是 分页 呢?

究竟是 分类,还是 分页 呢?


分页,大神,求源码

我以前写的分页,现在去看已经看不明白了。代码供参考:

class PageTool{	protected $total=0;	protected $perpage=10;	protected $page=1;	/*构造函数的参数分别为商品总条目数,每页多少条目,当前页*/	public function __construct($total,$page=false,$perpage=false){		$this->total = $total;		if($perpage){			$this->perpage = $perpage;		}		if($page){			$this->page = $page;		}	}	public function show(){		$cnt = ceil($this->total/$this->perpage);//$cnt表示一共需要多少页		$uri = $_SERVER['REQUEST_URI']; //从地址栏获取URL		$parse = parse_url($uri); //将获取的URL变成特定数组		//print_r($parse);exit;		$param = array();		if(isset($parse['query'])){ //如果地址栏传了参数(也就是url?之后的字符串),则获取参数放入$param数组中			parse_str($parse['query'],$param);		}			/*不管地址栏有没有传page参数,都要把page从$param中剔除		因为page参数是需要计算出来的,不能定死*/		unset($param['page']);		$url = $parse['path'].'?';		if(!empty($param)){			$param = http_build_query($param);  //把数组$param再变成字符串,这一次已经剔除了page参数			$url = $url.$param.'&'; //重新拼凑$url,最后的&符号用于连接计算出的page		}		/*			关键部分:计算页码导航			此处逻辑有点复杂,多思考下		*/		$nav = array(); //用于存放最终地址栏链接		$nav[0] = '<span class="page_now">'.$this->page.'</span>'; //把当前地址栏的page参数放入$nav数组		for($left=$this->page-1,$right=$this->page+1;		($left>=1||$right<=$cnt)&&count($nav)<=5;){			if($left>=1){				array_unshift($nav, '<a href="'.$url.'page='.$left.'">'.'['.$left.']'.'</a>');				$left-=1;			}			if($right<=$cnt){				array_push($nav, '<a href="'.$url.'page='.$right.'">'.'['.$right.']'.'</a>');				$right+=1;			}		}		return implode('', $nav);	}}/*	测试分页类效果	$page = isset($_GET['page'])?$_GET['page']:1;	$pagetool = new PageTool(20,$page,6);	echo $pagetool->show();*/
Copy after login

https://www.baidu.com/s?wd=php%E5%88%86%E9%A1%B5%E4%BB%A3%E7%A0%81&rsv_spt=1&issp=1&f=3&rsv_bp=0&rsv_idx=2&ie=utf-8&tn=monline_3_dg&rsv_enter=1&rsv_sug3=3&rsv_sug1=3&rsv_t=c733Uq%2FwiMQsWTsHbTpKlsGi28hrzNSMtk%2FPEGjmC0WhKU90JnZi4iR38%2FcmUPYPizwg&rsv_sug2=0&prefixsug=PHP%E5%88%86%E9%A1%B5&rsp=0&inputT=4321&rsv_sug4=5144

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 Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

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
1673
14
PHP Tutorial
1278
29
C# Tutorial
1257
24
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.

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.

PHP and Python: Different Paradigms Explained 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.

How do you prevent SQL Injection in PHP? (Prepared statements, PDO) How do you prevent SQL Injection in PHP? (Prepared statements, PDO) Apr 15, 2025 am 12:15 AM

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python: Code Examples and Comparison 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 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.

PHP's Purpose: Building Dynamic Websites PHP's Purpose: Building Dynamic Websites Apr 15, 2025 am 12:18 AM

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

Choosing Between PHP and Python: A Guide Choosing Between PHP and Python: A Guide Apr 18, 2025 am 12:24 AM

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.

See all articles