What are the best practices for handling conditional statements in PHP scripts?

When handling conditional statements in PHP scripts, it is important to follow best practices to ensure readability and maintainability of the code. This includes using clear and concise conditions, avoiding nested if statements when possible, and utilizing ternary operators for simple conditions. 

// Example of best practices for handling conditional statements in PHP scripts

// Clear and concise condition
$age = 25;
if ($age >= 18) {
    echo "You are an adult.";
} else {
    echo "You are a minor.";
}

// Avoiding nested if statements
$grade = 85;
if ($grade >= 90) {
    echo "A";
} elseif ($grade >= 80) {
    echo "B";
} elseif ($grade >= 70) {
    echo "C";
} else {
    echo "D";
}

// Utilizing ternary operators
$is_admin = true;
$message = $is_admin ? "You have admin privileges." : "You do not have admin privileges.";
echo $message;

Keywords

if statement else statement switch statement ternary operator error handling

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