PHP Alphabet Triangle Program - javatpoint
Alphabet Triangle Pattern
Some different alphabet triangle patterns using range() function in PHP are shown below.
Pattern 1
- <?php
- $alpha = range('A', 'Z');
- for($i=0; $i<5; $i++){
- for($j=5; $j>$i; $j--){
- echo $alpha[$i];
- }
- echo "<br>";
- }
- ?>
Output:
Pattern 2
- <?php
- $alpha = range('A', 'Z');
- for($i=0; $i<5; $i++){
- for($j=0; $j<=$i; $j++){
- echo $alpha[$i];
- }
- echo "<br>";
- }
- ?>
Output:
Pattern 3
- <?php
- $alpha = range('A', 'Z');
- for($i=0; $i<5; $i++){
- for($j=0; $j<=$i; $j++){
- echo $alpha[$j];
- }
- echo "<br>";
- }
- ?>
Output:
Pattern 4
- <?php
- $alpha = range('A', 'Z');
- for($i=0; $i<5; $i++){
- for($j=4; $j>=$i; $j--){
- echo $alpha[$j];
- }
- echo "<br>";
- }
- ?>
Output:
Pattern 5
- <?php
- $alpha = range('A', 'Z');
- for ($i=5; $i>=1; $i--) {
- for($j=0; $j<=$i; $j++) {
- echo ' ';
- }
- $j--;
- for ($k=0; $k<=(5-$j); $k++) {
- echo $alpha[$k];
- }
- echo "<br>\n";
- }
- ?>
Output: