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Alphabet Triangle Method

There are three methods to print the alphabets in a triangle or in a pyramid form.

  • range() with for loop
  • chr() with for loop
  • range() with foreach loop

Logic:

  • Two for loops are used.
  • First for loop set conditions to print 1 to 5 rows.
  • Second for loop set conditions in decreasing order.

Using range() function

This range function stores values in an array from A to Z. here, we use two for loops.

Example:

Output:

PHP Alphabet triangle method 1

Using chr() function

Here the chr() function returns the value of the ASCII code. The ASCII value of A, B, C, D, E is 65, 66, 67, 68, 69 respectively. Here, also we use two for loops.

Example:

Output:

PHP Alphabet triangle method 2

Using range() function with foreach

In this methods we use foreach loop with range() function. The range() function contain values in an array and returns it with $char variable. The for loop is used to print the output.

Example:

Output:

PHP Alphabet triangle method 3



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