What is PHP? Explain it.
PHP stands for Hypertext Preprocessor or we can say PHP is the short form of Hypertext Preprocessor. It is a general-purpose and an extremely popular scripting language that is used to develop dynamic and interactive web pages and web sites. The first version of PHP was developed in 1994 by Rasmus Lerdorf.
PHP is the first server side scripting language that can be used with HTML. It can also be merged with the syntax of C, Java and Perl languages that makes easier to insert extra functionality to web pages without calling external files for data.
PHP is a speedy, open source and feature-rich scripting language. It is mainly used for creating web based applications or web development (Internet Applications).
The dynamic content of PHP is directly interacts with databases. Means we connect the PHP file with the database. MySQL is a open source and most widely used database that is established on a relational database management system (RDBMS) and is able and efficient to handle a big coexisting database connection.
Zend Engine generated the common PHP interpreter. It is a free open source software published under the PHP License. PHP is widely used and can be installed on most of the web servers on different operating systems and platforms.
Things you need to make a PHP program :
You need two things to begin:
Follow these steps to get started with PHP.
You’ve to save your PHP code file into the htdocs folder then follow the following steps.
A simple PHP program for addition of two numbers.
echo "The sum of given both digits is: ",$addition;
PHP coding is started with <?php and ending with ?>. In above example we take two variables named number1 and number2. These variables are taken with $. Now we pass the values to the both variables as number1=35 and number2=20. Now you have to take a third variable, in this example we’ve taken addition. Both variables (number1 and number2) are passed to the third variable addition. Now calculation is done and it will add both numbers. Now ‘echo’ is used to print and displaying the message on the screen. In this example the output displayed on the screen will be -
The sum of given both digits is: 55
PHP framework :
Without a framework PHP is like C++ with no standard library.
A PHP framework is a platform that provides a basic foundation to develop PHP web applications.
Some PHP frameworks are as following :
1. CakePHP 2. CodeIgniter 3. FuelPHP · 4. Zend Framework 5. Yii 6. Symfony7. Phalcon. 8. Laminas Project. 9. Slim10. Laravel
PHP Features :
PHP features are listed as follows.
Benefits of Php compare to other programming languages :
PHP advantages are listed as follows.
Disadvantages of PHP :
PHP disadvantages are listed as follows.
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