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  1. <?php
  2.  
  3. var_dump((int) '0' == null); // true
  4.  
  5. $array['zero'] = 0;
  6. var_dump(isset($array['zero'])); // false
  7.  
  8. $array['zero'] = '';
  9. var_dump(isset($array['zero'])); // false, z tego co pamiętam
Success #stdin #stdout 0.02s 24448KB
comments (?)
stdin 
Standard input is empty
stdout 
bool(true)
bool(true)
bool(true)
https://ideone.com/lQ3Vfk
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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