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An example of regular filtering in php to prevent sql injection

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Release： 2016-07-25 09:11:49
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  2. include("config.php");
  3. if($_GET["id"])
  4. {
  5. $_GET["id"]=inject_check($_GET["id"] );
  6. echo $id;
  7. }

  9. function inject_check($sql_str) {

  10. $check= eregi('select|insert|update|delete|'|/* |*|../|./|union|into|load_file
  11. |outfile', $sql_str);
  12. if($check)
  13. {
  14. echo "Illegal character!";
  15. exit();
  16. }else
  17. {
  18. return $sql_str;
  19. }
  20. }
  21. ?>

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