symfony2 twig模板引擎,symfony2twig模板
1、基本语法
Says something:{{ }}
Does something:{% %}
Comment something:{# #}
{% extends "AppWebBundle::layout.html.twig" %}继承模板
2、核心概念:
用类的继承关系去管理页面之间的关系
如果要访问某个bundle里的资源文件,需要将文件拷贝到/web 目录下,或者linux/mac 软连接映射到/web目录下
windows: >php app/console assets:install web
linux: >php app/console assets:install web --symlink --relative
3、js css文件管理
(1)直接使用某个CSS/JS文件:{{asset('xxx.js')}}
(2)注册/定义资源:{% javascripts %} {% stylesheets %}
# 会将‘AppWebBundle/Resources/public/js/’目录下所有的js文件依次输出<br />{% block my_js %<span>} {</span>% javascripts '@AppWebBundle/Resources/public/js/*' %<span>} </span><script type="text/javascript" src="{{ asset_url }}"></script><span> {</span>% endjavascripts %<span>} {</span>% endblock %}
并在app/config/config.yml配置:
assetic:<span> bundles</span>: [ AppWebBundle ]
(3)页面间共享CSS/JS文件的通用策略

To protect the application from session-related XSS attacks, the following measures are required: 1. Set the HttpOnly and Secure flags to protect the session cookies. 2. Export codes for all user inputs. 3. Implement content security policy (CSP) to limit script sources. Through these policies, session-related XSS attacks can be effectively protected and user data can be ensured.

Methods to optimize PHP session performance include: 1. Delay session start, 2. Use database to store sessions, 3. Compress session data, 4. Manage session life cycle, and 5. Implement session sharing. These strategies can significantly improve the efficiency of applications in high concurrency environments.

Thesession.gc_maxlifetimesettinginPHPdeterminesthelifespanofsessiondata,setinseconds.1)It'sconfiguredinphp.iniorviaini_set().2)Abalanceisneededtoavoidperformanceissuesandunexpectedlogouts.3)PHP'sgarbagecollectionisprobabilistic,influencedbygc_probabi

In PHP, you can use the session_name() function to configure the session name. The specific steps are as follows: 1. Use the session_name() function to set the session name, such as session_name("my_session"). 2. After setting the session name, call session_start() to start the session. Configuring session names can avoid session data conflicts between multiple applications and enhance security, but pay attention to the uniqueness, security, length and setting timing of session names.

The session ID should be regenerated regularly at login, before sensitive operations, and every 30 minutes. 1. Regenerate the session ID when logging in to prevent session fixed attacks. 2. Regenerate before sensitive operations to improve safety. 3. Regular regeneration reduces long-term utilization risks, but the user experience needs to be weighed.

Setting session cookie parameters in PHP can be achieved through the session_set_cookie_params() function. 1) Use this function to set parameters, such as expiration time, path, domain name, security flag, etc.; 2) Call session_start() to make the parameters take effect; 3) Dynamically adjust parameters according to needs, such as user login status; 4) Pay attention to setting secure and httponly flags to improve security.

The main purpose of using sessions in PHP is to maintain the status of the user between different pages. 1) The session is started through the session_start() function, creating a unique session ID and storing it in the user cookie. 2) Session data is saved on the server, allowing data to be passed between different requests, such as login status and shopping cart content.

How to share a session between subdomains? Implemented by setting session cookies for common domain names. 1. Set the domain of the session cookie to .example.com on the server side. 2. Choose the appropriate session storage method, such as memory, database or distributed cache. 3. Pass the session ID through cookies, and the server retrieves and updates the session data based on the ID.


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