Explain the control structures used in PHP, including if-else statements, loops, and switch statements.

In PHP, control structures are used to control the flow of execution in a program. They allow for making decisions, repeating actions, and switching between different cases based on specific conditions. Let's explore the three main control structures in PHP: if-else statements, loops, and switch statements. 1. If-else Statements: * If-else statements allow you to execute different blocks of code based on specific conditions. * Syntax: ``` php`if (condition) { // Code to execute if condition is true } else { // Code to execute if condition is false }` ``` * Example: ``` php`$age = 20; if ($age >= 18) { echo "You are an adult."; } else { echo "You are a minor."; }` ``` * In the above example, if the condition `$age >= 18` is true, the code within the first block is executed. Otherwise, the code within the else block is exec....