Control Structures in PHP

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Control structures are essential elements in programming that allow you to control the flow of your PHP code. In PHP, you can use conditional statements and loops to make your code more dynamic and responsive. Let's dive into these control structures:

Conditional Statements

Conditional statements allow you to execute different code blocks based on whether a specified condition is true or false.

1. if, elseif, else:

php code

$age = 25;

if ($age < 18) {

    echo "You are underage.";

} elseif ($age >= 18 && $age < 65) {

    echo "You are an adult.";

} else {

    echo "You are a senior citizen.";

}

2. switch, case, break:

php code

$day = "Monday";

switch ($day) {

    case "Monday":

        echo "It's Monday!";

        break;

    case "Tuesday":

        echo "It's Tuesday!";

        break;

    default:

        echo "It's another day.";

}

Loops

Loops allow you to repeatedly execute a block of code as long as a specific condition is met or for a fixed number of iterations.

1. for loop:

php code

for ($i = 1; $i <= 5; $i++) {

    echo "Iteration $i<br>";

}

2. while loop:

php code

$counter = 1;

while ($counter <= 5) {

    echo "Iteration $counter<br>";

    $counter++;

}

3. do...while loop:

php code

$counter = 1;

do {

    echo "Iteration $counter<br>";

    $counter++;

} while ($counter <= 5);

4. foreach loop (for iterating over arrays):

php code

$colors = ["red", "green", "blue"];

foreach ($colors as $color) {

    echo "Color: $color<br>";

}

These control structures are fundamental in PHP programming and allow you to create dynamic and efficient scripts. You can use them to control the flow of your code, iterate over arrays, and make decisions based on conditions.

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