本文实例讲述了smarty常见代码段。分享给大家供大家参考,具体如下:
1、
<select > {html_options values=$cust_ids selected=$customer_id output=$cust_names} </select>
说明:生成下拉菜单。values=一个数组,数组元素为列表值 selected=一个值,这个是默认的列
表值 output=一个数组,数组元素为显示的列表值
{html_checkboxes values=$cust_ids checked=$customer_id output=$cust_names separator="<br/>"}
说明:复选框。同上;separator="
"指以
分隔每个复选按钮的字符串
{html_radios values=$cust_ids checked=$customer_id output=$cust_names separator="<br/>"}
说明:单选按钮
2、
{counter start=0 skip=2 print=ture}
说明:计数器,其后使用时,以0 开始,每次增加 2 。
3、
{section loop=$data} <tr bgcolor="{cycle values="#eeeeee,#d0d0d0"}"> <td>{$data[rows]}</td> </tr> {/section}
说明:轮回返回数组元素(或一个数列)值
4、
{assign var="name" value="Bob"} The value of $name is {$name}.//The value of $name is Bob。
说明:赋值
5、
{fetch file="http://www.myweather.com/68502/" assign="weather"}
说明:fetch 用于从本地文件系统、HTTP或FTP上取得文件并显示文件的内容. 如果文件名称
以"http://"开头,将取得该网站页面并显示. 如果文件名称以"ftp://"开头,将从ftp服务器取得
该文件并显示.
6、
{html_image file="../path/relative/to/currdir/pumpkin.jpg" border="1" height="100" width="100" alt="图片" href="1.html"}
说明:图片
7、
{html_select_date}
说明:创建日期下拉菜单. 它可以显示任意年月日
{html_select_time}
说明:用于创建时间下拉菜单. 它可以显示任意时分秒
8、
{html_table loop=$data cols=4 table_attr='border="0"' tr_attr=$tr td_attr=$td}
说明:以$data数组元素形成一个4列的表。table_attl为表格属性,tr_attr为行属性,td_attr
为列属性
9、
{math equation="x + y" x=$height y=$width}
说明:数学运算函数
10、
{mailto address="me@domain.com" text="send me some mail"}
说明:生成电子邮件链接
11、
{popup}
说明:创建javascript弹出窗口,使用前必须先调用 popup_init 函数
希望本文所述对大家基于smarty模板的PHP程序设计有所帮助。

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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