PHP Alphabet Pattern 30

Posted in PHP Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 90 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

PHP Alphabet Pattern 30

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

example.php

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<?php
$alpha = range('A', 'Z');
$k = 4;
for($i=0; $i<=4; $i++)
{
 for($j=$i; $j>0; $j--)
  echo $alpha[$j];
 for($k=0; $k<=4-$i ; $k++)
  echo $alpha[$k];
 echo "<br>";
}
?>

💻 Testing the Program

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

Output

ABCDE
BABCD
CBABC
DCBAB
EDCBA

🧠 How the Program Works

Let's break down the logic behind the code:

<?php: This is the opening tag for embedding PHP code in an HTML file.
$alpha = range('A', 'Z');: This line initializes an array $alpha containing the uppercase letters of the English alphabet from 'A' to 'Z'.
$k = 4;: A variable $k is initialized with the value 4.
for($i=0; $i<=4; $i++): This is the start of the outer loop, which iterates from 0 to 4 (inclusive) and represents the number of rows in the pattern.
Inside the outer loop:
1. for($j=$i; $j>0; $j--): This is the start of the first inner loop, which iterates from $i (current row number) to 1 (inclusive) in reverse order. It prints the letters from $alpha array in descending order.
  - echo $alpha[$j];: Prints the letter at index $j from the $alpha array.
2. for($k=0; $k<=4-$i ; $k++): This is the start of the second inner loop, which iterates from 0 to 4 - $i (inclusive). It prints the letters from $alpha array in ascending order.
  - echo $alpha[$k];: Prints the letter at index $k from the $alpha array.
3. echo "<br>";: Prints an HTML line break <br> to move to the next line after each row of letters.
After both inner loops have completed, the program moves to the next iteration of the outer loop, which results in a new row being generated.
The entire process repeats until the outer loop completes its iterations.
?>: This is the closing tag for PHP code.

💯 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!