Build a PHP learning framework mycake_PHP tutorial
The things I will take over immediately require the use of php. Although I have never been exposed to it at all, I can learn it freely. I basically decided to get started with PHP as soon as possible through practice.
After some understanding, I found that PHP is very fast for building websites, and there are many mature open source PHP frameworks on the Internet. I think it might be more efficient to learn PHP in this way. What you see is what you get.
1. Prepare the environment and install basic components such as apache, mysql, php, etc., which have been discussed in the previous article, so I will not repeat them here. Assume we have the basic environment ready.
2. Download cakephp, the official website is http://cakephp.org/.
3. Enter the /var/www/ directory -------- Because the web page directory of apache is in this directory by default. If you change the path yourself, then enter the root directory of your web page
Create a new folder mycake,
Then unzip the downloaded cakephp into mycake. At this point, theoretically, you can already access cakephp through 127.0.0.1/mycake.
4. The next problem is to deal with the various problems prompted on the homepage
4.1 There is a problem that some cannot be rewritten. This is a directory permissions issue
Enter the apache configuration directory, which is /etc/apache2/ by default, enter the sites-enabled/ directory, and modify the configuration,
DocumentRoot /var/www
Options FollowSymLinks
AllowOverride all
Options Indexes FollowSymLinks MultiViews
AllowOverride all
#Order allow,deny
allow from all
Modify the red part to indicate that you have writable permissions.
4.2 I continue to find that there is an app/tmp that cannot be written. This should be a problem with the permissions of the directory,
Enter /var/www/mycake/app, chmod -R 777 tmp
Then get it done
4.3 Found a rewrite problem with ulr. This is because apache has not loaded the rewrite module
Enter /etc/apache2/, enter mods-enable,
Then execute ln -s rewrite_load ../mods-available/rewrite.load
The effect is to establish a soft connection, rewrite.load -> ../mods-available//, and then restart apache
At this point, you’re done. The final rendering is as follows:
Next, I am going to start an e-commerce business in LCD, IGBT, and HMI
Excerpted from ShiningStarPxx’s column
www.bkjia.com

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.


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