Static php page, static php page
How to optimize page response time:
- Staticization of dynamic pages
- Optimize database
- Use load balancing
- Use caching
If some content in the page does not change frequently, you can use dynamic page staticization. The benefits are: reducing the calculation time of the server script; reducing the server's response time.
1. Dynamic URL address setting static form (pseudo-static)
For example: http://xxx.com/index.php?c=play&id=1111 =>
http://xxx.com/play/1111.html (not a purely static page)
2, buffer
buffer is actually a buffer, a memory address space, mainly used to store data areas.
Write a buffer.php file and save it. It does not save the file content directly on the disk, but writes the content into the buffer first. When a buffer is full, the data in the buffer will be written Into the disk, this is the buffer of the operating system.
When executing a PHP program, if there is output content, it will be put into the output buffer first, and then the data will be transmitted to the client or browser through tcp.
To put data into the output buffer, first turn on the output buffer, pass the php.ini file output_buffering = On or ob_start(), and then use ob_get_contents() to get the output buffer content.
3. PHP realizes pure static page
Purely static html files are placed on the server-side disk.
Basic method:
- file_put_contents() function;
int file_put_contents ( string $filename
, mixed $data
[, int $flags
= 0 [, resource $context
]] )
Success will return the number of bytes of data written to the file. Returns false on failure.
- Use PHP’s built-in caching mechanism to achieve page staticization-output_buffering
ob function
ob_start(); Open the output buffer
ob_get_contents(void); Returns the output buffer contents
ob_clean(void); Clear the output buffer
Ob_get_clean(void); Get the contents of the current buffer and delete the current output buffer
Three ways to generate pure static pages:
- Add cache time to page
<?<span>php<br />//存在index.html并且在有效时间以内(5分钟) </span><span>if</span> (<span>file_exists</span>('index.html') && (<span>time</span>()-<span>filemtime</span>('index.html') < 300<span>)) { </span><span>require_once</span> 'index.html'<span>; }</span><span>else</span><span>{ </span><span>ob_start</span><span>(); </span><span>//</span><span>连接数据库获取数据并填充到模板</span> <span>echo</span> 'helllo world'<span>; </span><span>file_put_contents</span>('index.html', <span>ob_get_contents</span><span>()); } </span>?>
- Manual trigger
Manually set in the background and automatically generated
- Linux crontab scheduled scan program
Crontab -e //Edit a crontab file, the file content is as follows: */5 * * * * Directory where the php execution program is located /xx/xx.php
http://www.cnblogs.com/peida/archive/2013/01/08/2850483.html
4. Pseudo-static
PHP handles pseudo-static: regular expression matching
<span>//</span><span>http://xxx.cn/xx/test4.php/2/11.html //http://xxx.cn/xx/test4.php?page=2&id=1,实际的访问路径</span> <span>if</span>(<span>preg_match</span>('/\/(\d+)\/(\d+).html/', <span>$_SERVER</span>['PATH_INFO'], <span>$matches</span><span>)){ </span><span>$param</span>['page'] = <span>$matches</span>[1<span>]; </span><span>$param</span>['id'] = <span>$matches</span>[2<span>]; }</span>
rewrite configuration under Apache :
http://myapps.com/detail/12.html ==> http://myapps.com/apps/detail.php?id=12 (actual access path)
httpd.conf file: Enable LoadModule rewrite_module modules/mod_rewrite.so
extra/httpd-vhosts.conf file is configured as follows:
ServerAdmin webmaster@dummy-host2.example.com
DocumentRoot "D:/wamp/www/myProject"
ServerName myapps.com
ErrorLog "logs/dummy-host2.example.com-error.log"
CustomLog "logs/dummy-host2.example.com-access.log" common
RewriteEngine on
#If there is a 12.html file in the detail directory, access the file in that directory first
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-d
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} ! -f
RewriteRule ^/detail/([0-9]*).html$ /apps/detail.php?id=$1
http://www.onexin.net/apache-rewrite-detailed/

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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