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  1. <?php
  2.  
  3. echo "Bits in an int: ".(count_bits(PHP_INT_MAX) + 1);
  4. die;
  5.  
  6. // Counts how many bits are needed to represent $value
  7. function count_bits($value) {
  8.     for($count = 0; $value != 0; $value >>= 1) {
  9.         ++$count;
  10.     }
  11.     return $count;
  12. }
  13.  
Success #stdin #stdout 0.01s 20568KB
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Standard input is empty
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Bits in an int: 32
https://ideone.com/U9PSdt
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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