$get and $post variables in php with syntax and examples In PHP, $_GET and $_POST are superglobal variables used to access data sent to the server through HTTP requests. Syntax: - $_GET: $_GET['variable_name'] - $_POST: $_POST['variable_name'] Examples: 1. $_GET: Retrieves data from the URL query string. Example: // URL: (link unavailable)?name=John&age=30 echo $_GET['name']; // outputs...

Server variables in php with syntax and examples Server variables in PHP provide information about the server environment, request headers, and other relevant data. These variables are stored in the $_SERVER superglobal array. Syntax: $_SERVER['variable_name'] Examples: 1. $_SERVER['HTTP_HOST']: Returns the hostname of the server. Example: echo $_SERVER['HTTP_HOST']; // outputs "(link unavailable)" 1. $_SERVER['REQUEST_METHOD']: Returns the...

Arrays in php with syntax and examples Arrays are a fundamental data structure in PHP, allowing you to store and manipulate collections of values. Syntax: $array = array(value1, value2, ...); Examples: $fruits = array("apple", "banana", "orange"); $numbers = array(1, 2, 3, 4, 5); Array Types: 1. Indexed Arrays: Arrays with numerical keys. Example: $colors =...

Outputting Data in PHP PHP provides two primary ways to output data: echo and print. Echo: - Outputs one or more strings - Does not return a value - Can output multiple strings separated by commas Syntax: echo $string1, $string2, ...; Examples: echo "Hello, World!"; echo "Hello", " ", "World!"; Print: - Outputs a single...

Local and global variables in php with syntax and examples In PHP, variables are used to store and manipulate data. There are two types of variables: local and global. Local Variables: - Declared within a function or block - Only accessible within that function or block - Destroyed when the function or block ends Syntax:...

Functions in php with syntax and examples Functions are reusable blocks of code that perform a specific task. They can take arguments, return values, and be used to organize and simplify code. Syntax: function function_name($argument1, $argument2, ...) { // code to be executed return $return_value; } Examples: function greet($name) { echo "Hello, $name!"; } greet("John");...

Conditions in php with syntax and examples Conditions are used to control the flow of a program's execution. PHP supports several types of conditions, including: 1. If Statement: Executes a block of code if a condition is true. Syntax: if (condition) { // code to be executed } Examples: $a = 10; if ($a >...

Operators in php with syntax and examples Operators are symbols used to perform operations on variables and values. PHP supports various types of operators, including: 1. Arithmetic Operators: Perform mathematical operations. Syntax: $x + $y $x - $y $x * $y $x / $y $x % $y Examples: $a = 10; $b = 5; echo...

Concatination in php with syntax and examples Concatenation is the process of joining two or more strings together to form a new string. In PHP, concatenation is achieved using the dot (.) operator. Syntax: $string1 . $string2 Examples: $hello = 'Hello, '; $world = 'World!'; $greeting = $hello . $world; // outputs "Hello, World!" Concatenation...

Data types in php with syntax and examples PHP supports various data types to store and manipulate different types of data. Here are the main data types in PHP: 1. Integer: Whole numbers, either positive, negative, or zero. Syntax: $integer = 123; Examples: $age = 25; $temperature = -5; 2. Float: Decimal numbers, also known...