fork download
copy 
  1. <?php
  2.  
  3. function foo($match) {
  4.     if (strtolower($match[1][0]) === 'x') {
  5.         $codepoint = hexdec(ltrim(substr($match[1], 1), '0'));
  6.     } else {
  7.         $codepoint = (int)ltrim($match[1], '0');
  8.     }
  9.     return mb_convert_encoding(pack('N', $codepoint), 'UTF-8', 'UTF-16BE');
  10. }
  11. var_dump( preg_replace_callback('/&#(x[0-9a-f]+|[0-9]+);/i', 'foobar', '&#151;') );
Success #stdin #stdout 0.02s 13112KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Warning: preg_replace_callback(): Requires argument 2, 'foobar', to be a valid callback in /home/VudSV7/prog.php on line 11
string(6) "&#151;"
https://ideone.com/yMawJ
language:
PHP (php 7.3.5)
created:
14 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!