PHP Syntax

PHP syntax refers to the rules that govern the structure and formatting of PHP code. PHP code is typically written within PHP tags, which consist of the opening tag <?php and the closing tag ?>. Within these tags, you can write PHP code that is executed on the server and generates HTML output for the client.

Defining variables:

<?php
$name = "John";
$age = 25;
?>

Outputting text to the screen:

<?php
echo "Hello, World!";
?>

Conditional statements:

<?php
if ( $age > 18 ) {
    echo "You are an adult.";
} else {
    echo "You are a minor.";
}
?>

Loops:

<?php
for ( $i = 0; $i < 10; $i++ ) {
    echo $i;
}
while ( $i < 10 ) {
    echo $i;
    $i++;
}
?>

Functions:

<?php
function add_numbers( $num1, $num2 ) {
    $sum = $num1 + $num2;
    return $sum;
}
$result = add_numbers( 5, 10 );
echo $result;
?>

These are just a few examples of the many features of PHP syntax. PHP also includes many built-in functions and libraries for performing common tasks, such as database operations, file manipulation, and string manipulation.

When writing PHP code, it is important to follow proper syntax and formatting conventions to ensure that your code is easy to read and maintain. This includes using proper indentation, commenting your code, and following established coding standards and best practices.