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  1. <?php
  2.  
  3. function number_string($n, $order = 'desc', $string = '') {
  4. 	if($order == 'asc') {
  5. 		$string = $n . $string;
  6. 	}
  7. 	else {
  8. 		$string .= $n;
  9. 	}
  10.  
  11. 	if($n == 1) {
  12. 		return $string;
  13. 	}
  14. 	else {
  15. 		return number_string($n - 1, $order, $string);
  16. 	}
  17. }
  18.  
  19. echo number_string(5), PHP_EOL;
  20. echo number_string(5, 'asc'), PHP_EOL;
Success #stdin #stdout 0s 82880KB
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https://ideone.com/nLWsVm
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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