PHP For Loop

The for loop in PHP is used when you know exactly how many times you want to execute a block of code. It consists of three parts:

  • Initialization: Set a loop counter.
  • Condition: Defines when the loop should stop.
  • Increment/Decrement: Updates the counter in each iteration.

Syntax of a PHP For Loop

<?php
for (initialization; condition; increment/decrement) {
    // Code to be executed
}
?>

📝 Example 1: Simple For Loop

Prints numbers from 1 to 5.

<?php
for ($i = 1; $i <= 5; $i++) {
    echo "Number: $i <br>";
}
?>

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📝 Example 2: For Loop with Decrement

Prints numbers from 5 to 1.

<?php
for ($i = 5; $i >= 1; $i--) {
    echo "Countdown: $i <br>";
}
?>

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📝 Example 3: For Loop with Step

Counts from 0 to 10 in steps of 2.

<?php
for ($i = 0; $i <= 10; $i += 2) {
    echo "Step: $i <br>";
}
?>

Try It Now

🎯 When to Use a For Loop?

  • When you know the number of iterations in advance.
  • For iterating over a range of numbers with a fixed step.
  • When updating an index variable systematically.

📝 Practice Time!

Modify the examples above and experiment with different values to understand how for loops work.