Image upload script

[textbox]

Hello again, this script works 'ok'

It uploads fine, but then whenever I go to the page where the script sits, it deletes my current image and replaces it in the db as a period stop.

 

Any ideas?!

Also, as an add on, id like to create 3 different sized images from this script, can this be done?! If so, any help as to where id start would be great.

 

<?php
include "../include/session.php";
session_start();
header("Cache-control: private");
if (!$_SESSION['username']) {
    print "You're not logged in!";
    include("index.php");
    exit();
}


include "../global/db.php";
//set the username for testing
$username  = $_SESSION['username'];

########################################

//load the config file
include("imageconfig.php");

//if the for has submittedd
if (isset($_POST['upForm'])){

       $file_type = $_FILES['imgfile']['type'];
       $file_name = $_FILES['imgfile']['name'];
       $file_size = $_FILES['imgfile']['size'];
       $file_tmp = $_FILES['imgfile']['tmp_name'];

       //check if you have selected a file.
       if(!is_uploaded_file($file_tmp)){
          echo "Error: Please select a file to upload!. <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
          exit(); //exit the script and don't do anything else.
       }
       //check file extension
       $ext = strrchr($file_name,'.');
       $ext = strtolower($ext);
       if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
          echo "Wrong file extension.  <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
          exit();
       }
       //get the file extension.
       $getExt = explode ('.', $file_name);
       $file_ext = $getExt[count($getExt)-1];

       //create a random file name
       $rand_name = md5(time());
       $rand_name= rand(0,999999999);
       //get the new width variable.
       $ThumbWidth = $img_thumb_width;

       //keep image type
       if($file_size){
          if($file_type == "image/pjpeg" || $file_type == "image/jpeg"){
               $new_img = imagecreatefromjpeg($file_tmp);
           }elseif($file_type == "image/x-png" || $file_type == "image/png"){
               $new_img = imagecreatefrompng($file_tmp);
           }elseif($file_type == "image/gif"){
               $new_img = imagecreatefromgif($file_tmp);
           }
           //list width and height and keep height ratio.
           list($width, $height) = getimagesize($file_tmp);
           $imgratio=$width/$height;
           if ($imgratio>1){
              $newwidth = $ThumbWidth;
              $newheight = $ThumbWidth/$imgratio;
           }else{
                 $newheight = $ThumbWidth;
                 $newwidth = $ThumbWidth*$imgratio;
           }
           //function for resize image.
           if (function_exists(imagecreatetruecolor)){
           $resized_img = imagecreatetruecolor($newwidth,$newheight);
           }else{
                 die("Error: Please make sure you have GD library ver 2+");
           }
           imagecopyresized($resized_img, $new_img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
           //save image
           ImageJpeg ($resized_img,"$path_thumbs/$rand_name.$file_ext");
           ImageDestroy ($resized_img);
           ImageDestroy ($new_img);
           //print message
           echo "<br>Image Thumb: <a href=\"$path_thumbs/$rand_name.$file_ext\">$path_thumbs/$rand_name.$file_ext</a>";
        }

        //upload the big image
        move_uploaded_file ($file_tmp, "$path_big/$rand_name.$file_ext");

        echo "<br>Image Big: <a href=\"$path_big/$rand_name.$file_ext\">$path_big/$rand_name.$file_ext</a>";

        echo "<br><br>--<a href=\"$_SERVER[php_SELF]\">back</a>";

}else{ //if the form hasn't been submitted.

      //print the form
      echo "<br><h3>:: Browse an Image to Upload:</h3>\n
      <form method=\"post\" name=\"upForm\" enctype=\"multipart/form-data\" action=\"$_SERVER[php_SELF]\">\n
      <input type=\"file\" name=\"imgfile\"> <img src='' name='img_vv' width='0'><br>\n
      Image width will resize to <b>$img_thumb_width</b> with height ratio.
      <br><input type=\"Submit\" name=\"upForm\" value=\"Upload & Resize\">\n
      </form>
";

}

//enter the information into the correct table <br>


$query="UPDATE images SET imagelocation='$path_big/$rand_name.$file_ext', thumblocation='$path_thumbs/$rand_name.$file_ext' WHERE username = '$username'";
mysql_query($query);
//echo "Image Updated, please refresh!";
?>

 

Thanks

Nick

[textbox]

Is it because of the action of the form?!

[Trium918]

What is wrong with your script?

[textbox]

It uploads fine, but then whenever I go to the page where the script sits, it deletes my current image and replaces it in the db as a period stop.

 

Any ideas?!

 

Also, as an add on, id like to create 3 different sized images from this script, can this be done?! If so, any help as to where id start would be great.

[Trium918]

Does this script resize and to what dimension?

[textbox]

Yes it does resize, currently just once, using this part here;

 

//path to store images
$path_thumbs = "userimages/thumbs";
$path_big = "userimages/normal";

//the new width of the resized image.
$img_thumb_width = 115; // in pixels

$extlimit = "no"; //Do you want to limit the extensions of files uploaded (yes/no)
//allowed Extensions
$limitedext = array(".gif",".jpg",".png",".jpeg",".bmp");

[trq]

Move this...

 

$query="UPDATE images SET imagelocation='$path_big/$rand_name.$file_ext', thumblocation='$path_thumbs/$rand_name.$file_ext' WHERE username = '$username'";
mysql_query($query);

 

Into the first if clause. This way it is only executed when the form is actually submitted.

[textbox]

Nice one, thanks Thorpe.

 

Any ideas about the multiple resizes?!

 

Nick

[Trium918]

How does this work?

 

<?php
//check file extension
       $ext = strrchr($file_name,'.');
       $ext = strtolower($ext);
       if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
          echo "Wrong file extension.  <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
          exit();
       }
?>

 

Where are the two variables defined?

<?php
$extlimit $limitedext
?>

[Trium918]

textbox you have already asked this question before.

 

Image upload extension

« on: May 14, 2007, 01:26:37 PM »

http://www.phpfreaks.com/forums/index.php/topic,140634.0.html

 

[textbox]

Oh yeah, sorry about that.

Did try looking because I had a small niggle that i had, but couldnt find it.

 

Delete the old thread if needs be.

 

They are defined in the include file show above.

or again here;

 

<?php
//path to store images
$path_thumbs = "userimages/thumbs";
$path_big = "userimages/normal";

//the new width of the resized image.
$img_thumb_width = 115; // in pixels

$extlimit = "no"; //Do you want to limit the extensions of files uploaded (yes/no)
//allowed Extensions
$limitedext = array(".gif",".jpg",".png",".jpeg",".bmp");


//check if folders are Writable or not
//please CHOMD them 777
if (!is_writeable($path_thumbs)){
   die ("Error: The directory <b>($path_thumbs)</b> is NOT writable");
}
if (!is_writeable($path_big)){
    die ("Error: The directory <b>($path_big)</b> is NOT writable");
}

?>

[Trium918]

You're using radios or check boxes for this right?

 

<?php
//check file extension
$ext = strrchr($file_name,'.');
$ext = strtolower($ext);
if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
      echo "Wrong file extension.  <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
      exit();
}
?>

[textbox]

No.

Just and upload file (browse) field and a submit button.

[Trium918]

textbox are there two files being uploaded when after

the script run because I am getting two?

[textbox]

Yes Trium there are.

And original.

And a thumbnail.

 

Do you know how to make 3 upload, and set each one to a different dimension whilst maintaining aspect ratio?!

[Trium918]

Explain this please because I really donnot understand it.

 

<?php
if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
      echo "Wrong file extension.  <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
      exit();
}


?>

[textbox]

I dont understand myself.

Thats why I have asked for help on this issue!

[Trium918]

I dont understand myself.

Thats why I have asked for help on this issue!

 

Where did you get this code?

 

[textbox]

Sorry, its one that i have had on my computer for a long time.

[Trium918]

Sorry, its one that i have had on my computer for a long time.

 

Someone has moved it out of PHP Help!