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File Upload / File type

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File Upload / File type Having problems with a PHP script you are coding? This is the place to get help!

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  #1  
Old August 10th, 2002, 03:48 AM
postalcow postalcow is offline
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File Upload / File type
I am writing a file upload script. before I write the file I only want to write it if it is a jpg.

So I wrote this line

$check_extention = explode(".", $image_upload_name);

if I echo ($check_extention[1] it shows jpg. now in the following line it does not work.

if ($check_extention[1] == "jpg") { $write_image = "ok"; }

Now if I echo $write_image it is empty. so it does not write as I directed it to do. Any clue to what I am doing wrong.
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  #2  
Old August 10th, 2002, 04:19 AM
D1NGO D1NGO is offline
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RE: File Upload / File type
well because you only want one file type, no need for explode function me thinks...try this:
php Code:
Original - php Code 
  1.  
  2. <?php
  3. $string_extension = ".jpg"; //sets your extension
  4. if($string_extension == '.jpg')
  5. {
  6.     $write_image = "ok";
  7. }
  8. ?>

not tested yet, but looks simple enough
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  #3  
Old August 10th, 2002, 04:29 AM
siteworkspro.com siteworkspro.com is offline
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RE: File Upload / File type
why done you just use this??/

if($image_upload_type != "image/jpeg")
//dont upload!
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  #4  
Old August 10th, 2002, 12:12 PM
Gipz Gipz is offline
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RE: RE: File Upload / File type
I'm taking it a little bit futher:

php Code:
Original - php Code 
  1.  
  2. <?php
  3. function validateType($file_data_type)
  4. {
  5.     $acceptedFileTypes = array('image/pjpeg', 'image/jpeg');
  6.  
  7.     if (!in_array($file_data_type, $acceptedFileTypes)) { 
  8.         echo('Invalid filetype: '.$file_data_type);
  9.         die;
  10.     } else {
  11.         return true;
  12.     }
  13. } // validateType()
  14. ?>
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Old August 10th, 2002, 01:56 PM
greggory greggory is offline
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RE: File Upload / File type
I think this may be set in the <input type="file"> tag with the 'accept' attribute...

php Code:
Original - php Code 
  1.  
  2. <input type="file" name="pic" accept="image/pjpeg;image/jpeg">
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  #6  
Old August 10th, 2002, 02:00 PM
cjrobs cjrobs is offline
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RE: File Upload / File type
yes, but as with any client-side thing - that can be bypassed. Client-Side stuff is great for making wizzy effects/design/doing a primary check of forms, but you can't trust anything your script is given from a form - you have to check it with your server-side script to make sure it is valid.
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