Decision Making in PHP Language

Decision making is a fundamental aspect of programming, and in PHP, you can use conditional statements to control the flow of your

code. In this post, we’ll explore decision making in PHP, which allows you to execute different code blocks based on specific conditions. We’ll cover the most commonly used decision-making structures and provide practical examples to illustrate how they work.

The if Statement in PHP Language

The if statement is used to execute a block of code if a specified condition is true. If the condition is false, the code block is not executed.

Example:

$age = 20;

if ($age < 18) {
    echo "You are a minor.";
}

The if...else Statement in PHP Language

The if...else statement allows you to execute one block of code if a condition is true and another block if the condition is false.

Example:

$age = 20;

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

The if...elseif...else Statement in PHP Language

The if...elseif...else statement lets you handle multiple conditions. It will execute the first block of code where the condition is true and skip the rest.

Example:

$age = 65;

if ($age < 18) {
    echo "You are a minor.";
} elseif ($age < 65) {
    echo "You are an adult.";
} else {
    echo "You are a senior citizen.";
}

The switch Statement in PHP Language

The switch statement is used to select one of many code blocks to be executed. It’s often employed when you have multiple conditions to check against a single variable.

Example:

$day = "Monday";

switch ($day) {
    case "Monday":
        echo "It's the start of the workweek.";
        break;
    case "Friday":
        echo "It's almost the weekend!";
        break;
    default:
        echo "It's an ordinary day.";
}

The Ternary Operator in PHP Language

The ternary operator (? :) provides a concise way to make decisions and assign values based on a condition.

Example:

$age = 20;
$status = ($age < 18) ? "Minor" : "Adult";
echo "You are a $status.";

Nested Conditional Statements in PHP Language

You can nest conditional statements within each other to handle more complex decision-making scenarios.

Example:

$age = 20;
$isStudent = true;

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