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How to name PHP uploaded images with timestamp and PHP file saving path method

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Release： 2016-07-25 08:52:59
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  3. Image import



  9. < ;/div>
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2, php code (file upload, name the file with timestamp, save file path in session)

  2. /**
  3. *Mwbe Version1.0
  4. *-----------------------------------------------
  5. *Copy 2013-2014 ylt
  6. *Web: communicate
  7. *-----------------------------------------------
  8. *Author: tao *Data: 2014-7-22
  9. */
  10. header("Content-Type:text/html;charset=utf-8");
  11. //step 1 Use $_FILES['pic ']["error"] Check for errors
  12. if(isset($_GET["action"])=="img"){
  13. if($_FILES["img"]["error"] > 0){
  14. switch($_FILES["img"]["error"]) {
  15. case 1:
  16. echo "";
  17. break;
  18. case 3:
  19. echo "";
  20. break;
  21. case 4:
  22. echo "";
  23. break;
  24. default:
  25. echo "";
  26. }
  27. exit;
  28. }
  29. $maxsize=2000000; //50k
  30. //step 2 Use $_FILES["pic"]["size"] to limit the size unit in bytes 2M=2000000
  31. if($_FILES["img"]["size"] > $maxsize ) {
  32. echo "";
  33. exit;
  34. }
  35. //step 3 Use $_FILES["pic"]["type"] or the file extension Name restriction type MIME image/gif image/png gif png jpg
  36. /* list($dl, $xl) = explode("/", $_FILES["pic"]["type"]);
  37. if($dl !="image"){
  38. echo "Please upload an image, other types of files are not allowed";
  39. exit;
  40. }
  41. */ bbs.it-home.org
  42. $allowtype=array("png", "gif ", "jpg", "jpeg");
  43. $arr=explode(".", $_FILES["img"]["name"]);
  44. $hz=$arr[count($arr)-1] ;
  45. if(!in_array($hz, $allowtype)){
  46. echo "" ;
  47. session_start();
  48. $_SESSION['images'] = $fileimgweb.$randname;
  49. }else{
  50. echo "";
  51. }
  52. }else{
  53. echo"
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