How to use Single Loop and String Manipulation In PHP

An alternative approach involves using a single loop and string manipulation to create each row.

PHP

<?php 
  
function printDiamond($rows) { 
    for ($i = 1; $i <= $rows; $i++) { 
        echo str_repeat(" ", $rows - $i); 
        echo str_repeat("*", 2 * $i - 1) . "\n"; 
    } 
  
    for ($i = $rows - 1; $i >= 1; $i--) { 
        echo str_repeat(" ", $rows - $i); 
        echo str_repeat("*", 2 * $i - 1) . "\n"; 
    } 
} 
  
// Driver code 
$row = 5; 
printDiamond($row); 
  
?>

Output:

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

PHP Program to Print Diamond Shape Star Pattern

Printing a diamond-shaped star pattern is a classic programming exercise that involves nested loops to control the structure of the pattern. In this article, we will explore different approaches to creating a PHP program that prints a diamond-shaped star pattern.