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  1. <?php
  2.  
  3. function html_dereference($match) {
  4.     if (strtolower($match[1][0]) === 'x') {
  5.         $codepoint = intval(substr($match[1], 1), 16);
  6.     } else {
  7.         $codepoint = intval($match[1], 10);
  8.     }
  9.     return mb_convert_encoding(pack('N', $codepoint), 'UTF-8', 'UTF-32BE');
  10. }
  11. $str = '&#151;';
  12. $str = preg_replace_callback('/&#(x[0-9a-f]+|[0-9]+);/i', 'html_dereference', $str);
  13. var_dump(unpack('C*', $str));
Success #stdin #stdout 0.02s 13112KB
comments (?)
stdin 
Standard input is empty
stdout 
array(2) {
  [1]=>
  int(194)
  [2]=>
  int(151)
}
https://ideone.com/3TruR
language:
PHP (php 7.3.5)
created:
14 years ago
visibility:
public

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