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  1. <?php
  2.  
  3. function bin2si($bin, $bits = 32) { 
  4.     if (strlen($bin) == $bits) { 
  5.         if (substr($bin,0,1) == 0) { // positive or zero 
  6.             $si = base_convert($bin,2,10); 
  7.         } else { // negative 
  8.             $si = base_convert($bin,2,10); 
  9.             $si = -(pow(2,$bits)-$si); 
  10.         } 
  11.         return $si; 
  12.     } 
  13. } 
  14.  
  15. echo bin2si('11111101', 8);
  16.  
  17. //https://pt.stackoverflow.com/q/78335/101
Success #stdin #stdout 0.02s 24232KB
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-3
https://ideone.com/y8WJmw
language:
PHP (php 7.3.5)
created:
4 years ago
visibility:
public

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