How can conditional statements like IF and ELSE be effectively used in PHP to streamline code and improve readability?

Conditional statements like IF and ELSE can be effectively used in PHP to streamline code and improve readability by allowing for the execution of certain code blocks based on specified conditions. By using these statements, you can create more organized and structured code that is easier to understand and maintain. Additionally, you can use logical operators such as AND (&&) and OR (||) to combine multiple conditions for more complex decision-making.

// Example of using IF and ELSE statements in PHP
$age = 25;

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