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PHP for loop Exercises: Print alphabet pattern A

PHP for loop: Exercise-13 with Solution

Write a PHP program to print alphabet pattern 'A'.

Visual Presentation:

PHP for loop Exercises: Print alphabet pattern A

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 :

Flowchart: Print alphabet pattern A

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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