How can conditional statements in PHP be structured to ensure that specific conditions are met before executing code?

To ensure specific conditions are met before executing code in PHP, you can use if statements to check the conditions and only run the code if the conditions are true. You can also use else if and else statements to handle multiple conditions. Additionally, you can use logical operators such as && (AND) and || (OR) to combine conditions.

// Example of conditional statements in PHP
$age = 25;

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