求一段源码
我要写一个分页
与 新浪微薄的分页有点相同 (向下拉到底就加载,加载三段后,就显示分页页数)。
还请教一下怎么写,我下了一个新浪微薄源码,可惜是JAVA的,看不懂。
有高手做过嘛?
------解决方案--------------------
按需加载?
这个效果需要由 js 实现,php只负责提供数据
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jquery 有这种插件 显示内容,比较多的是显示图片,屏幕到了哪一块就加载,不过插件名字 还是老样子 不记得了.
------解决方案--------------------
有好多:
10款无限滚动自动翻页jquery插件
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关键在于判断垂直滚动条的位置
当滚动条顶部到达某个位置时,通过 ajax 向 php 请求数据
如此循环而已
------解决方案--------------------
一面就10条微博, js维护当前用户页面上的条目个数, 用ajax拉更新, 更改条目个数, 条目个数超30就JS删除后20条, 添加下一页按钮.
其他状态是服务端维护的:
1,用户ajax拉数据,由服务端数据库维护上一次拉时间t1,将t1之后的条目推给用户。
2,用户点击下一页,服务端查数据库按时间排序,分页即可。
有难度吗。
------解决方案--------------------
我已经说了,这不是 php 的事情
给你个核心代码,接下来的事情你还是要自己学着做
- JScript code
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script><script>$(document).ready(function(){ $(window).scroll(function() { var h = $(this).scrollTop();// + $(this).height(); var t = $('#control').offset().top; if( h >= t) { $("#view").html($("#view").html() + h + ':' + t + ' new data '); } });});</script><div id="view"></div><div id="control" style="height:300pt">控制位</div><br><font color="#e78608">------解决方案--------------------</font><br>简单啊,滚动条滚动到指定位置就用AJAX拉取新的记录,每次拉取缓存一下最后一条记录的ID。<br><br>在DIV里显示内容,判断滚动条位置到达DIV底部的时候,执行拉取方法就好了。<br><font color="#e78608">------解决方案--------------------</font><br>document.documentElement.scrollTop || document.body.scrollTop|| 0;<br>先判断scroll距离顶部的值。你想要三页,你大概的算一下三页的高度。<br>if(s //假如3000是你三页的高,那么小于3000的就让它继续加载内容<br>}else{<br> //如果等于或者大于了,那么就在这里show出你的分页。<br>}<br><br>//根据你的实际情况去修改,思路你懂了吗<div class="clear"> </div>

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

PHP is not dead. 1) The PHP community actively solves performance and security issues, and PHP7.x improves performance. 2) PHP is suitable for modern web development and is widely used in large websites. 3) PHP is easy to learn and the server performs well, but the type system is not as strict as static languages. 4) PHP is still important in the fields of content management and e-commerce, and the ecosystem continues to evolve. 5) Optimize performance through OPcache and APC, and use OOP and design patterns to improve code quality.

PHP and Python have their own advantages and disadvantages, and the choice depends on the project requirements. 1) PHP is suitable for web development, easy to learn, rich community resources, but the syntax is not modern enough, and performance and security need to be paid attention to. 2) Python is suitable for data science and machine learning, with concise syntax and easy to learn, but there are bottlenecks in execution speed and memory management.

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.

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.

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.


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