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  1. <?php
  2.  
  3.  
  4. $var = 5;
  5. $var2 = 4;
  6.  
  7.  
  8. $total = isset($var) + isset($var2) + isset($var3);
  9. echo $total;
Success #stdin #stdout 0.02s 52472KB
comments (?)
stdin 
Standard input is empty
stdout 
2
https://ideone.com/1fPXlr
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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