PHP Star Pattern 9

Posted in PHP Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 90 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

PHP Star Pattern 9

Here`s a program that prints the above star pattern using PHP Programming:

example.php

Copied

<?php
// First Part
for($i=1; $i<=5; $i++)
{
 for($j=5; $j>=1; $j--)
 {
  if($i == $j)
   echo "*";
  else
   echo "&nbsp;&nbsp;";
 }
 for($k=2; $k<=5; $k++)
 {
  if($i == $k)
   echo "*";
  else
   echo "&nbsp;&nbsp;";
 }
 echo "<br>";
}
// Second Part
for($i=4; $i>=1; $i--)
{
 for($j=5; $j>=1; $j--)
 {
  if($i == $j)
   echo "*";  
  else  
   echo "&nbsp;&nbsp;";
 }
 for($k=2; $k<=5; $k++)
 {
  if($i == $k)
   echo "*";
  else 
   echo "&nbsp;&nbsp;";
 }
 echo "<br>";
}
?>

💻 Testing the Program

When you run the above program, it will print the following output:

Output

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

🧠 How the Program Works

Let's break down the logic behind the code:

First Part:
This part of the program generates an ascending pattern of asterisks.
1. The outer loop (for($i=1; $i<=5; $i++)) iterates through values of $i from 1 to 5, inclusive. This controls the rows of the pattern.
2. The first inner loop (for($j=5; $j>=1; $j--)) iterates through values of $j from 5 to 1, inclusive. This controls the first set of spaces or asterisks on the left side of each row.
3. Inside this loop, an if condition checks if $i is equal to $j, and if true, it prints an asterisk (*). Otherwise, it prints two non-breaking spaces (  ) to create a visual gap.
4. The second inner loop (for($k=2; $k<=5; $k++)) iterates through values of $k from 2 to 5, inclusive. This controls the second set of spaces or asterisks on the right side of each row.
5. Inside this loop, an if condition checks if $i is equal to $k, and if true, it prints an asterisk (*). Otherwise, it prints two non-breaking spaces (  ) again to create a visual gap.
6. After both inner loops complete, the program prints a line break (<br>) to move to the next row.
Second Part:
This part of the program generates a descending pattern of asterisks.
1. Another outer loop (for($i=4; $i>=1; $i--)) is used to iterate through values of $i from 4 to 1, inclusive. This controls the rows of the pattern.
2. Similar to the first part, the first inner loop (for($j=5; $j>=1; $j--)) iterates through values of $j from 5 to 1, inclusive. This controls the first set of spaces or asterisks on the left side of each row.
3. Inside this loop, an if condition checks if $i is equal to $j, and if true, it prints an asterisk (*). Otherwise, it prints two non-breaking spaces (  ).
4. The second inner loop (for($k=2; $k<=5; $k++)) iterates through values of $k from 2 to 5, inclusive. This controls the second set of spaces or asterisks on the right side of each row.
5. Inside this loop, an if condition checks if $i is equal to $k, and if true, it prints an asterisk (*). Otherwise, it prints two non-breaking spaces (  ).
6. After both inner loops complete, the program prints a line break (<br>) to move to the next row.

💯 Tips for Enhancement:

Explore the versatility of this pattern by adjusting its parameters. Whether you increase or decrease the size, tweak the spacing, or modify the characters used, each change opens up a world of possibilities, allowing you to customize and create your unique visual effects.

✔ Conclusion:

Creating visually appealing patterns is not only a fun endeavour but also a great way to enhance your programming or design skills. We hope this tutorial has inspired you to explore the world of creative coding. Share your creations with us, and let your imagination run wild!

🤗 Closing Call-to-Action:

We'd love to see your unique interpretations of the star pattern. Share your creations in the comments below, and don't hesitate to reach out if you have any questions or suggestions for future tutorials. Happy coding!