Sort check

• Write a function isSorted($numbers) that checks whether the array $numbers is sorted (return true;) or not (return false;)
• Make a (two-dimensional) array $rows, each element of which is an array of numbers
  • $rows[0] = [3, 7, 10, 19, 25];
  • $rows[1] = [3, 7, 30, 19, 25];
  • $rows[2] = [3, 7, 10, 19, 17];
• Call the function isSorted() on these number arrays, and give some feedback to the user in the following form
  • 3, 7, 10, 19, 25 => sorted
  • 3, 7, 30, 19, 25 => NOT sorted
  • 3, 7, 10, 19, 17 => NOT sorted

Tip

Use the PHP function implode() to convert an array (of numbers) into a string (with the numbers separated by commas)