(Translated by https://www.hiragana.jp/)
PHP Tutorial
Open In App

PHP Tutorial

Last Updated : 10 May, 2024
Summarize
Comments
Improve
Suggest changes
Like Article
Like
Save
Share
Report
News Follow

PHP (Hypertext Preprocessor) is a versatile and widely used server-side scripting language for creating dynamic and interactive web applications. This PHP tutorial will give you an in-depth understanding of the PHP scripting language. Whether you are a beginner or a professional PHP developer this free PHP tutorial will provide valuable knowledge about PHP scripting language.

What is PHP?

PHP is a popular scripting language used for creating dynamic web pages and web applications. The term PHP is an acronym of Hypertext Preprocessor. It is an open-source, interpreted, object-oriented server-side scripting language.PHP Tutorial

With our PHP tutorial, you'll learn all the important topics, including control statements, functions, arrays, strings, file handling, form handling, regular expressions, date and time manipulation, object-oriented programming in PHP, mathematical operations, working with PHP and MySQL, integrating PHP with Ajax, harnessing the power of PHP with jQuery, and more.

Table of Content

Prerequisites for this PHP Tutorial

  • HTML and CSS: Understanding of basic HTML and CSS.
  • Basic programming concepts

Features of PHP

  • Open-Source and Free: PHP is firstly open source which means anyone can use PHP code without any licensing. Along with this one can run PHP on any operating system like Windows, macOS, Linux, Unix and more.
  • PHP Server-Side Scripting: PHP code executes on the server before sending HTML content to the user's browser, allowing for the dynamic generation of web pages and handling user interactions.
  • Interpreted language: PHP code is interpreted line by line, eliminating the need for compilation and simplifying development and testing processes.
  • Database connectivity: PHP integrates seamlessly with various databases like MySQL, PostgreSQL, and Oracle, facilitating data storage and retrieval for web applications.
  • Object-oriented programming (OOP): PHP supports OOP concepts like classes, objects, inheritance, and polymorphism, enabling better code organization and modularity.
  • Built-in functions: PHP comes with a rich set of built-in functions for various tasks such as string manipulation, date and time handling, file handling, and more, reducing the need for external libraries.
  • Session management: PHP allows for user session management, enabling personalized experiences and storing user data across multiple page visits.
  • Security features: While security considerations are essential for any development language, PHP offers several built-in security features and best practices to help mitigate vulnerabilities.

History of PHP

PHP is developed by Rasmus Lerdorf in 1994 the very first version of PHP that simply designed to set the Common Gateway Interface (CGI) binaries, which are written in C programming language. The latest version of PHP is PHP version 8 which is released on November 24, 2022. It can be easily embedded with HTML files. HTML codes can also be written in a PHP file. The PHP codes are executed on the server side whereas HTML codes are directly executed on the browser.

PHP Characteristics

  1. Simple
  2. Efficient
  3. Secure
  4. Flexible

First Hello World Program in PHP

Simple program to print "Hello world!" message on the screen.

PHP 
<?php
 
/* echo is a print command */
echo "Hello world!"; 

?>

Output:

Hello world!

Why We Learn PHP ?

PHP is one of the widely used open-source general-purpose scripting languages for backend Development. Apart from this, let's see why we should learn it.

  • Easy to Learn: It is easier to learn for anyone who has come across any programming language for the first time.
  • Free of Cost: Since it is an open-source language, therefore developers are allowed to use its components and all methods for free.
  • Flexible: Since It is a dynamically typed language, therefore there are no hard rules on how to build features using it.
  • Supports nearly all databases: It supports all the widely used databases, including MySQL, ODBC, SQLite etc.
  • Secured: It has multiple security levels and provides us with a secure platform for developing websites as it has multiple security levels.
  • Huge Community Support: It is loved and used by a huge number of developers. The developers share their knowledge with other people in the community who want to know about it.

These applications demonstrate the versatility and widespread use of PHP in web development, powering a vast array of websites and applications.

Also Check: Recent Articles on PHP

Getting Started with PHP Tutorial

Explore the power of the web with this, free PHP tutorial! We'll guide you through the essential building blocks, transforming you from a beginner to a confident PHP developer. Get ready to craft dynamic web applications and robust server-side functionality with the versatile PHP language!

Functions Complete References


Applications of PHP

  • Server-side web development: It is a development where the program runs on a server dealing with the generation of content of web pages.
  • Content management systems (CMS): It is a framework already designed by other programmers and coders on which you can either contribute your knowledge and skills or just use those coders’ skills to design your own website or blog
  • E-commerce websites: E-commerce, or electronic commerce, refers to the buying and selling of goods and services over the Internet.
  • Database-driven applications: It is a software application that relies on a database to store, manage, and retrieve data. It utilizes a database management system (DBMS) to organize and manipulate data, enabling efficient data storage, retrieval, and management.
  • Web APIs: It is an API as the name suggests, it can be accessed over the web using the HTTP protocol. It is a framework that helps you to create and develop HTTP-based RESTFUL services.

Interview Questions and Answers:

PHP Online Quiz

PHP Programming Examples

Here in the section, we have listed some PHP programming examples that will help you to level up your PHP programming skills.

Frequently Asked Questions on PHP Tutorial

What is PHP full form?

The full form of PHP is Hypertext Preprocessor It was abbreviated previously as Personal Home Page.

Is PHP easy to learn?

Yes, to get a pro in PHP it will take 6 to 12 months so it more towards the easy programming language to learn.

Can you learn PHP on your own

Yes, you one can easily learn PHP by its own, just get some good resource like GeeksforGeeks and YouTube

Why is PHP used for?

PHP is used for a wide range of web development tasks, but here are some of its most common applications:

What is a PHP developer's salary?

The average salary of the PHP developer lies between 3.5 Lakh to 11 Lakh.


K
kartik
News
Improve
Next Article
PHP Introduction

Similar Reads

PHP 5 vs PHP 7
PHP is a server side scripting language designed for web development by Rasmus Lerdorf in 1994. Since its launch in 1994 PHP has become an industry standard supporting almost 80% of the websites ( 79.8% to be precise) with its closest competitor being ASP.Net at 19.8% and others like Ruby, Java trailing far behind. The PHP development team released
4 min read
How to include content of a PHP file into another PHP file ?
Including the content of a PHP file into another file reduces the complexity of code by reducing the code and improving its modularity by splitting the code into different files so that it is easy to understand and manage. There are two ways to do it by using the following PHP functions. PHP include() Function: It will show the warning if the file
2 min read
What is New in PHP Type Hinting Support in PHP 8?
PHP 8 introduced several enhancements and new features related to type hinting. That will check the code for their respective type so that we can use our code efficiently. These are the following features used in PHP Type Hitting Support: Table of Content Union TypesMixed TypeStatic Return TypeInheritance of Contravariant ParametersInheritance of P
3 min read
LAMP installation and important PHP configurations on Ubuntu
PHP is the Web development (Server Side Scripting Language) written and developed for web developers.It was developed by Rasmus Lerdorf in 1994, for maintaining his personal homepage. Later he added the feature to communicate with web forms and to connect with databases, named it as Personal Home Page Tools (PHP), Lerdorf wrote those using C binari
5 min read
PHP | imagecreatetruecolor() Function
The imagecreatetruecolor() function is an inbuilt function in PHP which is used to create a new true-color image. This function returns a blank image of the given size. Syntax: resource imagecreatetruecolor( $width, $height ) Parameters: This function accepts two parameters as mentioned above and described below: $width: This parameter is used to s
2 min read
PHP fpassthru( ) Function
The fpassthru() function in PHP is an inbuilt function which is used to read data from a current position from a specified file until end of file and then write the result to the output buffer. The file which has to be read is sent as a parameter to the fpassthru() function and it returns the number of characters passed on success or FALSE on failu
2 min read
PHP | ImagickDraw getTextAlignment() Function
The ImagickDraw::getTextAlignment() function is an inbuilt function in PHP which is used to get the alignment applied when annotating with text. It helps to format the text by making it stick to left, right or middle. Syntax: int ImagickDraw::getTextAlignment( void ) Parameters: This function doesn’t accept any parameter. Return Value: This functio
2 min read
PHP | Ds\Sequence last() Function
The Ds\Sequence::last() function is an inbuilt function in PHP which is used to return the last element from the sequence. Syntax: mixed abstract public Ds\Sequence::last( void ) Parameters: This function does not accept any parameters. Return value: This function returns the last element from the sequence. Below programs illustrate the Ds\Sequence
1 min read
PHP | array_udiff_uassoc() Function
The array_udiff_uassoc() Function is an inbuilt function in PHP and is used for distinguishing between two or more array. The function computes the differences array by use of two user-defined functions with the additional index key. It compares both data and index by use of callback functions and returns the difference. Syntax : array_udiff_uassoc
5 min read
How to generate Json File in PHP ?
In this article, we are going to generate a JSON file in PHP by using an array. JSON stands for JavaScript object notation, which is used for storing and exchanging data. JSON is text, written with JavaScript object notation. Structure: {"data":[ { "sub_data1":"value1", "sub_data2":"value2","sub_data_n":"value n" }, { "sub_data2":"value2","sub_data
3 min read
Difference and Similarities between PHP and C
PHP is a server-side scripting language designed specifically for web development. It can be easily embedded in HTML files and HTML codes can also be written in a PHP file. The thing that differentiates PHP from a client-side language like HTML is, PHP codes are executed on the server whereas HTML codes are directly rendered on the browser. C is a
3 min read
PHP | geoip_continent_code_by_name() Function
The geoip_continent_code_by_name() function is an inbuilt function in PHP which helps to generate a two-letter continent code(Each continent has assigned a two-letter code. For example - AF for Africa, AS for Asia, and many more). The function takes the hostname or IP Address as an argument and generates the two-letter continent code. Syntax : stri
1 min read
How to secure database passwords in PHP?
Most of the websites are providing sing up and login facility to the user. User has to create a password and use it for login to the website. But it is very important to secure the password of the user. password_hash() function provides the facility to securely store the password of the user to the database. Syntax password_hash(Password, PASSWORD_
2 min read
PHP | GmagickPixel setcolor() function
The GmagickPixel::setcolor() function is an inbuilt function in PHP which is used to set the color of the GmagickPixel object. Syntax: GmagickPixel GmagickPixel::setcolor( string $color ) Parameters:This function accepts a single parameter $color which holds the color. Return Value: This function returns GmagickPixel object on success. Exceptions:
1 min read
PHP Calendar Functions Complete Reference
The calendar extension contains a series of functions to represent the calendar date into a different format. The standard date is based on Julian Day Count. The date count starting from January 1st, 4713 B.C. is known as Julian Day Count. First, the date is converted into Julian Day Count and then converted into a calendar system. Example: The pro
2 min read
PHP | opendir() Function
The opendir() function in PHP is an inbuilt function which is used to open a directory handle. The path of the directory to be opened is sent as a parameter to the opendir() function and it returns a directory handle resource on success, or FALSE on failure. The opendir() function is used to open up a directory handle to be used in subsequent with
2 min read
PHP | cal_to_jd() Function
The cal_to_jd() function is an inbuilt function in PHP which is used to converts a specified date into Julian Day Count. The cal_to_jd() function calculates the Julian day count for a date in the specified calendar. This function supports CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH and CAL_FRENCH calendars.Syntax: int cal_to_jd( $calendar, $month, $day,
2 min read
PHP | stream_get_transports() Function
The stream_get_transports() function is an inbuilt function in PHP which is used to get the list of registered socket transports. This function returns the indexed array containing the name of all available socket. Syntax: array stream_get_transports( void ) Parameters: This function does not accept any parameter. Return Value: This function return
1 min read
When do we need Interfaces in PHP?
Interface are definitions of the public APIs that classes (implementing an interface) must implement. It is also known as contracts as an interface allows to specify a list of methods that a class must implement. Interface definition is similar to the class definition, just by changing the keyword class to interface.Example: PHP Code <?php inter
3 min read
How to write Into a File in PHP ?
In this article, we are going to discuss how to write into a text file using the PHP built-in fwrite() function. The fwrite() function is used to write into the given file. It stops at the end of the file or when it reaches the specified length passed as a parameter, whichever comes first. The file has to close by using the PHP fclose() function. S
2 min read
PHP | Ds\Deque pop() Function
The Ds\Deque::pop() function is an inbuilt function in PHP which is used to remove the last element from Deque (if Deque is not empty) and return it. If Deque is empty then it throws an exception. Syntax: public Ds\Deque::pop( void ) : mixed Parameters: This function does not accept any parameter. Return Value: This function returns the removed las
2 min read
PHP | SimpleXMLElement children() Function
Pre-requisite: Read XML BasicsThe SimpleXMLElement::children() function is an inbuilt function in PHP which returns children of a given node in a SimpleXML object. Syntax: SimpleXMLElement SimpleXMLElement::children( $namespace, $is_prefix ) Parameter: This function accepts two parameters as mentioned above and described below: $namespace: It is op
3 min read
Javascript | JSON PHP
JSON stands for the JavaScript Object Notation. It is used to exchanging and storing the data from the web-server. JSON uses the object notation of JavaScript. JavaScript objects can be converted into the JSON and receive JSON format text into the JavaScript objects. Converting the JavaScript object into the JSON format is done by the given functio
7 min read
PHP | dir() (Get instance of the Directory)
The dir() function in PHP used to find the instance of a Directory class. This function read directory, which includes the following: The given directory is opened. The two properties handle and path of dir() are available. The handle property can be used with other directory functions such as readdir(), rewinddir(), closedir(). The path property i
2 min read
PHP | array_intersect_ukey() Function
The array_intersect_ukey() function is an inbuilt function in PHP which is used to compute the intersection of two or more array against keys with the help of user-defined function and the function return an array. The returned array is the first array, which is matching keys and present in all parameters is the final output. Syntax: array array_in
5 min read
PHP | is_numeric() Function
The is_numeric() function is an inbuilt function in PHP which is used to check whether a variable passed in function as a parameter is a number or a numeric string or not. The function returns a boolean value. Syntax: bool is_numeric ( $var ) Parameters: The function accepts a single parameter which is mandatory and described below: $var: This inpu
2 min read
PHP | Imagick adaptiveSharpenImage() Function
The Imagick::adaptiveSharpenImage() function is an inbuilt function in PHP which provides an adaptive sharpen image feature to the image. The intensity of an adaptive sharpen image depends on dramatically decreased at the edge of the image. Syntax: bool Imagick::adaptiveSharpenImage ( $radius, $sigma, $channel ) Parameters: This function accepts th
1 min read
PHP | Coding Standards
PHP follows few rules and maintains its style of coding. As there are many developers all over the world, if each of them follows different coding styles and standards this will raise great confusion and difficulty for a developer to understand another developer's code. It will be very hard to manage and store the code for future reference. The cod
3 min read
PHP | ctype_print() Function
The ctype_print() Function in PHP used to check each and every character of a string are visible or not. If all characters of string are visible then returns TRUE , else if there are any control character then return FALSE. Control Character: A character that does not represent a printable character but serves to initiate a particular action. for e
2 min read
PHP | MySQL UPDATE Query
The MySQL UPDATE query is used to update existing records in a table in a MySQL database. It can be used to update one or more field at the same time. It can be used to specify any condition using the WHERE clause. Syntax : The basic syntax of the Update Query is - Implementation of Where Update Query : Let us consider the following table "Data" wi
2 min read
Article Tags :
three90RightbarBannerImg
We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy
Lightbox