PHP Programs Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report PHP Programs is a collection of coding examples and practical exercises designed to help beginners and experienced developers. This collection covers a wide range of questions based on Array, Stirng, Date, Files, ..., etc. Each programming example includes multiple approaches to solve the problem.Whether you are preparing for coding interviews, working on web development projects, or simply looking to improve your PHP skills, these programs offer clear explanations, step-by-step solutions, and best practices to enhance your understanding and proficiency in PHP programming.Table of ContentPHP Basic ProgramsPHP Array ProgramsPHP Function ProgramsPHP Date ProgramsPHP String ProgramsPHP Classes ProgramsPHP JSON ProgramsPHP File Systems ProgramsPHP Basic ProgramsExplore essential PHP programs covering fundamental concepts and syntax examples.1How to write PHP code in different ways?2How to write comments in PHP?3How to use Codeignitor (PHP)?4How to echo HTML in PHP?5How to do Error handling in PHP?6How to show All Errors in PHP?7How to Start and Stop a Timer in PHP?8How to create default function parameter in PHP?9How to check if mod_rewrite is enabled in PHP?10How to do Web Scrapping in PHP Using Simple HTML DOM Parser?11How to pass form variables from one page to another page in PHP?12How to display logged in user information in PHP?13How to find out where a function is defined using PHP?14How to Get $_POST from multiple check-boxes?15How to Secure hash and salt for PHP passwords?16How to detect search engine bots with PHP?17How to set PHP development environment in windows?18How to turn off PHP Notices?19How to use ‘<?=’ short open tag in PHP programming?PHP Array ProgramsEnhance your PHP skills with array-focused programs covering key concepts and functionalities.1How to insert a new item in an array on any position in PHP?2How to append one array to another in PHP?3How to delete an Element From an Array in PHP?4How to print all the values of an array in PHP?5How to perform Array Delete by Value Not Key in PHP?6How to remove Array Element and do Re-Indexing in PHP?7How to count all array elements in PHP?8How to insert an item at the beginning of an array in PHP?9How to check if two arrays contain the same elements?10How to merge two arrays keeping original keys in PHP?11How to find the maximum and the minimum in a PHP array?12How to check a key exists in an array in PHP?13How to find the second most frequent element in a PHP array?14How to sort an array of objects by object fields in PHP?15How to sort an array of strings in natural and standard orders?16How to print the last value of an array without affecting the pointer?17How to merge the first index of an array with the first index of the second array?18How to create a string by joining the array elements using PHP?19How to sort an Array of Associative Arrays by Value of a Given Key in PHP?20How to make a leaderboard using PHP?21How to check an array is multidimensional or not in PHP?22How to create Multidimensional Associative Array in PHP?23How to merge the duplicate value in multidimensional array in PHP?24How to convert multidimensional array to XML file in PHP?25How to search by multiple key => value in PHP array?26How to search by key=>value in a multidimensional array in PHP?27How to write a PHP program to find the Standard Deviation of an array?28How to write PHP program to check for Anagram?PHP Function ProgramsExplore PHP functions through various programs, covering fundamental concepts and advanced functionalities for comprehensive understanding and practice.1How to pass PHP Variables by reference?2How to format Phone Numbers in PHP?3How to use php serialize() and unserialize() Function4How to implement callback in PHP?5How to merge two or more arrays using array_merge()?6How to print an arithmetic progression series using inbuilt functions in PHP?7How to prevent SQL Injection in PHP?8How to extract the user name from the email ID using PHP?9How to count rows in MySQL table in PHP?10How to parse a CSV File in PHP?11How to generate simple random password from a given string using PHP?12How to upload images in MySQL using PHP PDO?13How to check foreach Loop Key Value in PHP?14How to properly Format a Number With Leading Zeros in PHP?15How to get a File Extension in PHP?16How to build a Grocery Store Web App using PHP with MySQL?17How to delete text from file using preg_replace() function in PHP?PHP Date ProgramsEnhance PHP expertise with date programs demonstrating manipulation, formatting, and processing of dates, catering to various scenarios and requirements.1How to get the current Date and Time in PHP?2How to change the date format using PHP?3How to convert DateTime to String using PHP?4How to get Time Difference in Minutes in PHP?5How to return all dates between two dates in an array in PHP?6How to sort an array of dates in PHP?7How to get the time of the last modification of the current page in PHP?8How to convert a Date into Timestamp using PHP?9How to add 24 hours to a unix timestamp in PHP?10How to sort a multidimensional array by date element in PHP?11How to convert timestamp to readable date/time in PHP?12How to find number of week days between two dates?13How to convert string to Date and DateTime in PHP?14How to get last day of a month from date in PHP?PHP String ProgramsLearn PHP String Programs, covering a wide range of string operations such as manipulation, searching, and formatting for diverse applications.1How to change strings in an array to uppercase?2How to convert first character of all the words uppercase using PHP?3How to get the last character of a string in PHP?4How to convert uppercase string to lowercase using PHP?5How to extract Numbers From a String in PHP?6How to replace String in PHP?7How to Encrypt and Decrypt a PHP String?8How to display string values within a table using PHP?9How to write Multi-Line Strings in PHP?10How to check if a String Contains a Substring in PHP?11How to append a string in PHP?12How to remove white spaces only beginning/end of a string using PHP?13How to Remove Special Character from String in PHP?14How to create a string by joining the array elements using PHP?15How to prepend a string in PHP?16How to replace a word inside a string in PHP?17How to remove all white spaces from a string in PHP?18How to count the number of words in a string in PHP?19How to find number of characters in a string in PHP?20How to get a substring between two strings in PHP?21How to get a variable name as a string in PHP?22How to remove occurrences of a specific character from end of a string in PHP?23How to convert string to boolean in PHP?24How to generate Random String Using PHP?25How to generate a random, unique, alphanumeric string in PHP?26How to remove new lines from string in PHP?27How to insert string at specified position in PHP?28How to check a string is a rotation of another string?PHP Classes ProgramsLearn PHP Classes Programs, delving into object-oriented programming concepts like inheritance, encapsulation, and polymorphism for robust application development.1How to use PHP Access Specifiers?2How to use PHP Constructors and Destructors?3How to do Type Casting?4How to convert of an Object to an Object of other class?5How to merge two PHP objects?6How to use Abstract Classes in PHP?PHP JSON ProgramsLearn PHP JSON Programs to manipulate JSON data, parse JSON strings, and encode PHP arrays into JSON format for efficient data exchange.1How to parse a JSON File in PHP?2How to generate JSON File in PHP?3How to Convert JSON file into CSV in PHP?4How to Convert XML data into JSON using PHP?5How to Insert JSON data into MySQL database using PHP?6How to convert PHP array to JavaScript or JSON?7How to receive JSON POST with PHP?8How to use cURL to Get JSON Data and Decode JSON Data in PHP?PHP File Systems ProgramsLearn PHP File Systems Programs to perform file operations such as reading, writing, deleting, and manipulating files and directories efficiently.1How to Create a Folder if It Doesn’t Exist in PHP?2How to check if File Exists in PHP?3How to write Into a File in PHP?4How to delete all files from a folder using PHP?5How to get file name from a path in PHP?6How to log errors and warnings into a file in PHP?7How to extract extension from a filename using PHP?8How to get names of all the subfolders and files present in a directory using PHP? Comment More infoAdvertise with us Next Article PHP Syntax K kartik Follow Improve Article Tags : PHP Similar Reads PHP Tutorial PHP is a popular, open-source scripting language mainly used in web development. It runs on the server side and generates dynamic content that is displayed on a web application. PHP is easy to embed in HTML, and it allows developers to create interactive web pages and handle tasks like database mana 9 min read BasicsPHP SyntaxPHP, a powerful server-side scripting language used in web development. It’s simplicity and ease of use makes it an ideal choice for beginners and experienced developers. This article provides an overview of PHP syntax. PHP scripts can be written anywhere in the document within PHP tags along with n 4 min read PHP VariablesA variable in PHP is a container used to store data such as numbers, strings, arrays, or objects. The value stored in a variable can be changed or updated during the execution of the script.All variable names start with a dollar sign ($).Variables can store different data types, like integers, strin 5 min read PHP | FunctionsA function in PHP is a self-contained block of code that performs a specific task. It can accept inputs (parameters), execute a set of statements, and optionally return a value. PHP functions allow code reusability by encapsulating a block of code to perform specific tasks.Functions can accept param 8 min read PHP LoopsIn PHP, Loops are used to repeat a block of code multiple times based on a given condition. PHP provides several types of loops to handle different scenarios, including while loops, for loops, do...while loops, and foreach loops. In this article, we will discuss the different types of loops in PHP, 4 min read ArrayPHP ArraysArrays are one of the most important data structures in PHP. They allow you to store multiple values in a single variable. PHP arrays can hold values of different types, such as strings, numbers, or even other arrays. Understanding how to use arrays in PHP is important for working with data efficien 5 min read PHP Associative ArraysAn associative array in PHP is a special array where each item has a name or label instead of just a number. Usually, arrays use numbers to find things. For example, the first item is at position 0, the second is 1, and so on. But in an associative array, we use words or names to find things. These 4 min read Multidimensional arrays in PHPMulti-dimensional arrays in PHP are arrays that store other arrays as their elements. Each dimension adds complexity, requiring multiple indices to access elements. Common forms include two-dimensional arrays (like tables) and three-dimensional arrays, useful for organizing complex, structured data. 5 min read Sorting Arrays in PHPSorting arrays is one of the most common operation in programming, and PHP provides a several functions to handle array sorting. Sorting arrays in PHP can be done by values or keys, in ascending or descending order. PHP also allows you to create custom sorting functions.Table of ContentSort Array in 4 min read OOPs & InterfacesPHP ClassesA class defines the structure of an object. It contains properties (variables) and methods (functions). These properties and methods define the behavior and characteristics of an object created from the class.Syntax:<?phpclass Camera { // code goes here...}?>Now, let us understand with the hel 2 min read PHP | Constructors and DestructorsIn PHP, constructors and destructors are special methods that are used in object-oriented programming (OOP). They help initialize objects when they are created and clean up resources when the object is no longer needed. These methods are part of the class lifecycle.In this article, we will discuss w 5 min read PHP Access ModifiersIn object-oriented programming, access specifiers are also known as access modifiers. These specifiers control how and where the properties or methods of a class can be accessed, either from inside the class, from a subclass, or from outside the class. PHP supports three primary access specifiers: p 4 min read Multiple Inheritance in PHPMultiple Inheritance is the property of the Object Oriented Programming languages in which child class or sub class can inherit the properties of the multiple parent classes or super classes. PHP doesn't support multiple inheritance but by using Interfaces in PHP or using Traits in PHP instead of cl 4 min read MySQL DatabasePHP | MySQL Database IntroductionWhat is MySQL? MySQL is an open-source relational database management system (RDBMS). It is the most popular database system used with PHP. MySQL is developed, distributed, and supported by Oracle Corporation. The data in a MySQL database are stored in tables which consists of columns and rows.MySQL 4 min read PHP Database connectionThe collection of related data is called a database. XAMPP stands for cross-platform, Apache, MySQL, PHP, and Perl. It is among the simple light-weight local servers for website development. Requirements: XAMPP web server procedure: Start XAMPP server by starting Apache and MySQL. Write PHP script f 2 min read PHP | MySQL ( Creating Database )What is a database? Database is a collection of inter-related data which helps in efficient retrieval, insertion and deletion of data from database and organizes the data in the form of tables, views, schemas, reports etc. For Example, university database organizes the data about students, faculty, 3 min read PHP | MySQL ( Creating Table )What is a table? In relational databases, and flat file databases, a table is a set of data elements using a model of vertical columns and horizontal rows, the cell being the unit where a row and column intersect. A table has a specified number of columns, but can have any number of rows. Creating a 3 min read PHP AdvancePHP SuperglobalsPHP superglobals are predefined variables that are globally available in all scopes. They are used to handle different types of data, such as input data, server data, session data, and more. These superglobal arrays allow developers to easily work with these global data structures without the need t 6 min read PHP | Regular ExpressionsRegular expressions commonly known as a regex (regexes) are a sequence of characters describing a special search pattern in the form of text string. They are basically used in programming world algorithms for matching some loosely defined patterns to achieve some relevant tasks. Some times regexes a 12 min read PHP Form HandlingForm handling is the process of collecting and processing information that users submit through HTML forms. In PHP, we use special tools called $_POST and $_GET to gather the data from the form. Which tool to use depends on how the form sends the data—either through the POST method (more secure, hid 4 min read PHP File HandlingIn PHP, File handling is the process of interacting with files on the server, such as reading files, writing to a file, creating new files, or deleting existing ones. File handling is essential for applications that require the storage and retrieval of data, such as logging systems, user-generated c 4 min read PHP | Uploading FileHave you ever wondered how websites build their system of file uploading in PHP? Here we will come to know about the file uploading process. A question which you can come up with - 'Are we able to upload any kind of file with this system?'. The answer is yes, we can upload files with different types 3 min read PHP CookiesA cookie is a small text file that is stored in the user's browser. Cookies are used to store information that can be retrieved later, making them ideal for scenarios where you need to remember user preferences, such as:User login status (keeping users logged in between sessions)Language preferences 9 min read PHP | SessionsA session in PHP is a mechanism that allows data to be stored and accessed across multiple pages on a website. When a user visits a website, PHP creates a unique session ID for that user. This session ID is then stored as a cookie in the user's browser (by default) or passed via the URL. The session 7 min read Like