


Configuration of PHP development environment (installing Apache and PHP on Linux platform)_PHP tutorial
Configuration of PHP development environment (installing Apache and PHP on Linux platform)
Configuration of PHP development environment (install Apache and php on Linux platform):
Download Apache (httpd-2.4.12.tar.gz), download PHP (php-5.6.9.tar.gz), download libxml2 (libxml2-2.7.8.tar.gz) related to PHP installation, Download three files related to Apache installation: apr(apr-1.5.2.tar.gz), apr-util(apr-util-1.5.4.tar.gz), pcre (pcre-8.10.zip)
(1) Install Apache: apr, apr-util and pcre must be installed before installing apache, otherwise an error will occur:
Install apr:
Gunzip apr-1.5.2.tar.gz
Tar xvf apr-1.5.2.tar
Enter the apr-1.5.2 directory and execute:
./configure --prefix=/usr/local/apr
Make && make install
Install apr-util:
After decompressing, enter the apr-util directory and execute:
./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr/bin/apr-1-config
Make && make install
Install pcre: Before installation, gcc must be installed first, otherwise the pcre file cannot be compiled
Install gcc: yum -y install gcc gcc-c
Then install pcre:
After decompressing, enter the pcre directory, and then execute:
./configure --prefix=/usr/local/pcre
Make && make install
After installing these files, you can install apache and unzip httpd-2.4.12.tar.gz:
Gunzip httpd-2.4.12.tar.gz
Tar xvf httpd-2.4.12.tar
Enter the decompression directory: cd httpd-2.4.12, then execute:
./configure --prefix=/usr/local/apache --enable-so --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util
--with-pcre=/usr/local/pcre
Make && make install
(2) Install PHP:
Install libxml2 before installing php:
After decompression, enter the directory: libxml2-2.7.8, and then execute:
./configure --prefix=/usr/local/libxml2
Make && make install
Install php: After unzipping, enter the directory php-5.6.9, and then execute:
./configure --prefix=/usr/local/php --with-libxml-dir=/usr/local/libxml2 --with-apxs2=/usr/local/apache/bin/apxs
Make && make install
After installing php, copy php.ini-development in the unzipped php-5.6.9 directory to the following directory:
cp php.ini-development /usr/local/php/lib/php.ini
(3) Configure httpd-conf in Apache's conf folder and add the following content (if it does not exist):
Add LoadModule php5_module module/libphp5.so at LoadModule
Add AddType application/x-httpd-php .php at AddTypeapplication
(4) Start or restart Apache:
/usr/local/apache/bin/apachectl restart (or start)
(5) Test whether Apache and PHP are installed correctly:
Go to the htdocs directory in Apache,
[root@Masterpc htdocs]# vim hello.php
echo "Hello world!";
phpinfo();
?>
Input in the browser: http://172.16.2.42/hello.php (the IP address of my Linux host is 172.16.2.42, through remote access). If the access is successful, it will be displayed as follows:

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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