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Simple example of PHP filtering BOM data in the page

WBOY
WBOYOriginal
2016-07-25 08:51:251370browse
  2. /**
  3. * Filter the bom in the page
  4. * edit bbs.it-home.org
  5. */
  6. function checkBOM ($filename) {
  7. $contents = file_get_contents($filename);
  8. $charset[1] = substr($contents, 0, 1);
  9. $charset[2] = substr($contents, 1, 1);
  10. $charset[3] = substr($contents, 2, 1);
  11. if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
  12. $rest = substr($contents, 3);
  13. rewrite $rest;
  14. }else{
  15. 　return false;
  16. }
  17. }
  18. ?>
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