How to print alphabet series in php

In first program we are using range function which store values in an array from A to Z.
Now we use two ‘FOR’ loops. In first ‘for’ loop we run condition from 1 to 5 to print 5 rows, and in second ‘for’ loop we set conditions in decreasing order to print our objects. And the value of $i will responsible for the output. i.e.
If $i = 0 then $letter[‘0’] = A, $i=1 then $letter[‘1’] = B and so on.

<?php $letters = range('A', 'Z'); for($i=0; $i<5; $i++){ for($j=5; $j>$i; $j--){ echo $letters[$i]; } echo "<br>"; } ?>

Method:2
In method second we use chr() function to get the output in character. The ASCII value of A,B,C,D,E is 65,66,67,68,69.
The chr() function return the value of ASCII code i.e.
chr(65) = A, chr(66) = B and so on.
The working of both the ‘for’ loops is same as above method.

<?php for( $i=65; $i<=69; $i++){ for($j=5; $j>=$i-64; $j--){ echo chr($i); } echo "<br>"; } ?>

Method: 3
In third method we again use range() function from A to Z. But here we use ‘foreach’ loop along it.
The range function contain values from A to Z in an array and the ‘foreach’ loop return all values one by one with $char variable. Here we use a single ‘for’ loop to print the output in a periodic method.

<?php $k=1; foreach(range('A','Z') as $char){ for($i=5; $i>=$k; $i--){ echo $char; } echo "<br>"; $k=$k+1; } ?>