Tutorials

PHP Alphabet Pattern 34

Posted in PHP Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 232 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

PHP Alphabet Pattern 34

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

example.php

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<?php
$alpha = range('A', 'Z');
// First Part
for($i=0; $i<=4; $i++)
{
 for($j=4; $j>=0; $j--)
 {
  if($i == $j)
   echo "<div>".$alpha[$j]."</div>";
  else
   echo "<div>&nbsp;</div>";
 }
 for($k=1; $k<=4; $k++)
 {
  if($i == $k)
   echo "<div>".$alpha[$k]."</div>";
  else
   echo "<div>&nbsp;</div>";
 }
 echo "<br>";
}
// Second Part
for($i=3; $i>=0; $i--)
{
 for($j=4; $j>=0; $j--)
 {
  if($i == $j)
   echo "<div>".$alpha[$j]."</div>";
  else
   echo "<div>&nbsp;</div>";
 }
 for($k=1; $k<=4; $k++)
 {
  if($i == $k)
   echo "<div>".$alpha[$k]."</div>";
  else
   echo "<div>&nbsp;</div>";
 }
 echo "<br>";
}
?>

💻 Testing the Program

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

Output

    A
   B B
  C   C
 D     D
E       E
 D     D
  C   C
   B B
    A

🧠 How the Program Works

Let's break down the logic behind the code:

Initialize an array $alpha containing uppercase letters from 'A' to 'Z'.
First Part (Upper Triangle):
1. Outer loop: for($i=0; $i<=4; $i++)
  - This loop iterates from 0 to 4, representing the rows of the pattern.
2. First inner loop: for($j=4; $j>=0; $j--)
  - This loop iterates from 4 to 0, representing the columns before the diagonal in each row.
  - Inside the loop, if $i (current row) is equal to $j (current column), it prints the corresponding letter from $alpha wrapped in a <div> element.
  - If they are not equal, it prints an empty <div>.
3. Second inner loop: for($k=1; $k<=4; $k++)
  - This loop iterates from 1 to 4, representing the columns after the diagonal in each row.
  - Inside the loop, if $i (current row) is equal to $k (current column), it prints the corresponding letter from $alpha wrapped in a <div> element.
  - If they are not equal, it prints an empty <div>.
4. After both inner loops complete, a <br> tag is added to move to the next line.
Second Part (Lower Triangle):
1. Outer loop: for($i=3; $i>=0; $i--)
  - This loop iterates from 3 to 0, representing the rows of the pattern in the second part.
2. First inner loop: for($j=4; $j>=0; $j--)
  - Similar to the first inner loop in the first part, this loop iterates from 4 to 0, representing the columns before the diagonal in each row of the second part.
3. Second inner loop: for($k=1; $k<=4; $k++)
  - Similar to the second inner loop in the first part, this loop iterates from 1 to 4, representing the columns after the diagonal in each row of the second part.
4. After both inner loops complete for each row, a <br> tag is added to move to the next line.
The program execution completes, and the final result is a pattern that resembles two triangles stacked on top of each other. The upper triangle contains letters in an ascending diagonal pattern, and the lower triangle contains letters in a descending diagonal pattern.

💯 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 alphabet 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!