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  1. <?php
  2. function is_number($n = null){
  3. 	if (is_null($n)){
  4. 		return false;
  5. 	}
  6. 	if (is_int($n)){
  7. 		return true;
  8. 	}
  9. 	$n = $n.'';
  10. 	$decimal = explode('.',$n);
  11. 	if (is_int($decimal[0]*1) && is_int($decimal[1]*1)){
  12. 		return true;
  13. 	}
  14.  
  15. 	return false;
  16.  
  17. }
  18.  
  19. if (is_number(1.2)){
  20. 	echo "yes";
  21. }
  22. else{
  23. 	echo "no";
  24. }
  25.  
  26. // your code goes here
Success #stdin #stdout 0.02s 24448KB
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yes
https://ideone.com/Xzm7pL
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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