PHP Tutorials

How to print Hour Glass Pattern in PHP

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How to print Hour Glass Pattern in PHP ?

Answer

To print an Hourglass Pattern in PHP, we can use loops and string manipulation to achieve the desired pattern.

✐ Examples

1 Hourglass Pattern

In this example,

We define a function printHourglass that takes the desired number of rows $n as a parameter.
We use two nested loops, where the outer loop runs from $n to 1 and the inner loops control the spaces and stars in each row.
Within the inner loops, we concatenate spaces and stars to form the hourglass pattern.

PHP Program

<?php
function printHourglass($n) {
    for ($i = $n; $i >= 1; $i--) {
        $spaces = str_repeat(' ', $n - $i);
        $stars = str_repeat('*', 2 * $i - 1);
        echo $spaces . $stars . "\n";
    }
    for ($i = 2; $i <= $n; $i++) {
        $spaces = str_repeat(' ', $n - $i);
        $stars = str_repeat('*', 2 * $i - 1);
        echo $spaces . $stars . "\n";
    }
}

// Example usage
printHourglass(5);
?>

Output

*********
 *******
  *****
   ***
    *
   ***
  *****
 *******
*********

Summary

In this tutorial, we learned How to print Hour Glass Pattern in PHP language with well detailed examples.