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PHP for loop Exercises: Print alphabet pattern G


19. Alphabet Pattern 'G'

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

Visual Presentation:

PHP for loop Exercises: Print alphabet pattern G

Sample Solution:

PHP Code:

 <?php
// Loop for rows
for ($row=0; $row<7; $row++)
{
    // Loop for columns
    for ($column=0; $column<=7; $column++)
    {
        // Condition to determine whether to print '*' or ' '
        if (($column == 1 and $row != 0 and $row != 6) or (($row == 0 or $row == 6) and $column > 1 and $column < 5) or ($row == 3 and $column > 2 and $column < 6) or ($column == 5 and $row != 0 and $row != 2 and $row != 6))
            echo "*";    // Print '*' if condition is met
        else  
            echo " ";    // Print ' ' if condition is not met
    }        
    echo "\n";  // Move to the next line after each row is printed
}
?>

Output:

  ***                                                       
 *   *                                                      
 *                                                          
 * ***                                                      
 *   *                                                      
 *   *                                                      
  ***

Explanation:

In the exercise above,

  • The code starts with a PHP opening tag <?php.
  • It uses a nested loop structure to iterate over rows and columns to create a specific pattern.
  • The outer loop (for ($row=0; $row<7; $row++)) controls the rows of the pattern, iterating from 0 to 6.
  • Inside the outer loop, there's another loop (for ($column=0; $column<=7; $column++)) that controls the columns, 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 multiple conditions:
    • If the column is at index 1 and the row is not at indices 0 or 6.
    • If the row is at index 0 or 6 and the column is between indices 2 and 4 (inclusive).
    • If the row is at index 3 and the column is between indices 3 and 5 (inclusive).
    • If the column is at index 5 and the row is not at indices 0, 2, or 6.
  • If any of these conditions are 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 G

For more Practice: Solve these Related Problems:

  • Write a PHP script to create the letter 'G' pattern using loops, ensuring the inner gap is correctly handled.
  • Write a PHP function that prints a 'G' pattern of a given size, including a break in the horizontal line for the "open" area.
  • Write a PHP program to display a 'G' pattern using a combination of echo statements and loop constructs to manage curved edges.
  • Write a PHP script to output the letter 'G' pattern with a partial inner horizontal line that distinguishes it from 'C'.

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PHP Code Editor:



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