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  1. <?php
  2.  
  3. $n = 5;
  4.  
  5. if($n === 1) echo 1;
  6. if($n === 0) echo 1;
  7.  
  8. if($n > 1) {
  9. 	$a = 1; 
  10. 	for($i=2; $i<=$n; $i++) { 
  11. 		$a *= $i; 
  12. 	}
  13. 	echo $a;
  14. }
Success #stdin #stdout 0.02s 52432KB
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https://ideone.com/lYXfa6
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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