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  1. <?php
  2.  
  3. function test($q=5)
  4. {
  5.   return $q;
  6. }
  7.  
  8.   printf("%d", test());
  9.  
  10. $b = NULL;
  11.  
  12. if(is_null($b)) 
  13.   printf("is NULL");
  14.  
  15. ?>
Success #stdin #stdout 0.02s 13112KB
comments (?)
stdin 
Standard input is empty
stdout 
5is NULL
https://ideone.com/h1zCE
language:
PHP (php 7.3.5)
created:
14 years ago
visibility:
public

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