


Technical problems encountered in entrepreneurship in 2015: 131-140
131.ZendStudio copies files to remote.
Copying directories and files at the same time does not work.
Copying the normal files .php and .htaccess at the same time does not work.
In this case, you can only copy it individually.
132.After Thinkphp is deployed, the template file cannot be found.
The template does not exist: ./Application/Home/View/Index/index.html
Developed under Windows, debugging mode is turned on.
Controller name: IndexController.
View file directory name: index, file name index.html.
After deploying to Linux, it is said that debug mode is strictly case-sensitive to prevent errors.
Solution: Strictly case-sensitive, change the view directory index to start with an uppercase Index.
Same problem, when included in "Thinkphp include", it is not case sensitive.
That’s fine, you don’t need to change every page.
From the perspective of rigor, it is better to change it to start with a capital letter.
133.Java automated deployment problem.
Maven packaging
Stop tomcat
Delete files
Copy files
Start Tomcat.
A common problem is that there are problems stopping Tomcat and various problems starting Tomcat again.
It’s so annoying now that there is no longer a script to start Tomcat in the automated deployment script.
Take it out separately and startTomcat.sh.
134.php substr Chinese garbled characters.
echo mb_substr("php Chinese character encode",0,4,"utf-8");
?>
135. Intercept string in Thinkphp.
Find a msubstr method online, create a new function.php in the Common directory of the application, and put the function in it.
Reference: http://blog.csdn.net/rogerzhanglijie/article/details/40340439
136.JMS-ActiveMq, after the network is disconnected, it is difficult to restore
[2015-04-22 14:36:41 WARN ] [jmsContainerRecharge-385] listener.DefaultMessageListenerContainer - S
etup of JMS message listener invoker failed for destination 'queue://Consumer.Recharge.VirtualTopic.RECHARGE_SUCCESSE' -
trying to recover. Cause: The JMS connection has failed : Connection reset
The local Java program connects to the remote mq. Due to the temporary local disconnection, the connection cannot be restored and the "warn" is kept.
No solution has been found yet.
137. It’s easy to start a company, it only takes a month.
The operation of the company is quite troublesome. We are busy with technology and publicity is a problem.
Before, I found a little trick to set the QQ homepage to our official website http://jiutianniao.com.
I just found it, go to the QQ group to sign in and leave your footprints.
However, this method is not very efficient, and most people will not sign in.
138.log4j debug
Both places are set to debug, Only then will the sql statement be output.
139. Today I suddenly discovered that the Jiutianniao Q&A website cannot be logged in with one click through QQ.
I searched online for the reason and found that the QQ interface has been changed. The details are not clear yet.
After a few days, it got better again. It should be a problem with the Tencent interface itself.
140. Jiutianniao p2p online loan system has been initially developed.
I want to add copyright information to the backend java code.
I wrote a tool class and tested it, and it works.
It’s done quickly and can be reused next time if needed.
The above introduces the technical problems encountered in entrepreneurship in 2015: 131-140, including aspects of content. I hope it will be helpful to friends who are interested in PHP tutorials.

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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