PHP for loop Exercises: Print alphabet pattern A
Write a PHP program to print alphabet pattern 'A'.
Visual Presentation:
Sample Solution:
PHP Code:
<?php
// Loop for rows
for ($row = 0; $row <= 7; $row++)
{
// Loop for columns
for ($column = 0; $column <= 7; $column++)
{
// Condition to determine if '*' or ' ' should be printed
if ((($column == 1 or $column == 5) and $row != 0) or (($row == 0 or $row == 3) and ($column > 1 and $column < 5)))
echo "*"; // Print '*' if conditions are met
else
echo " "; // Print ' ' if conditions are not met
}
echo "\n"; // Move to the next line after each row is printed
}
?>
Output:
*** * * * * ***** * * * * * * * *
Explanation:
In the exercise above,
- The code begins with a PHP opening tag <?php.
- It uses a nested loop structure to iterate over rows and columns to create a pattern.
- The outer loop (for ($row = 0; $row <= 7; $row++)) controls the rows of the pattern, iterating from 0 to 7.
- Inside the outer loop, there's another loop (for ($column = 0; $column <= 7; $column++)) that controls the columns by iterating from 0 to 7.
- Within the inner loop, there's a conditional statement that determines whether to print an asterisk ('*') or a space ( ) based on the position of the current row and column indices.
- The condition checks whether the current position corresponds to the desired pattern of asterisks and spaces.
- If the condition is met, an asterisk ('*') is echoed out. Otherwise, a space ( ) is echoed out.
- After printing each row, the code moves to the next line by echoing a newline character ('\n').
- Once all rows and columns are printed according to the pattern, the PHP code ends with a closing PHP tag ?>.
Flowchart :
PHP Code Editor:
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Previous: Write a PHP program to generate and display the first n lines of a Floyd triangle. (use n=5 and n=11 rows).
Next: Write a PHP program to print alphabet pattern 'B'.
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