Update form with image

ohh ok sorry i’m in the uk too thanks for the help

this is what comes up

array(1) {
  ["image"]=>
  array(5) {
    ["name"]=>
    string(17) "1201004377_lg.jpg"
    ["type"]=>
    string(10) "image/jpeg"
    ["tmp_name"]=>
    string(24) "C:\\xampp\	mp\\phpB8AD.tmp"
    ["error"]=>
    int(0)
    ["size"]=>
    int(24460)
  }
}

If you do:

echo '<pre>';
var_dump($_FILES);
echo '</pre>';

You’ll see that the files array will contain a number of “sub-arrays” each “sub-array” is one file.

What your looking for will be something like (assuming your looking to grab the original name of the file):

$_FILES[‘image’][‘name’]

hth

do u mean the code u had u mean the upload code u tried separately and worked if so yeah it works with a different form but if u mean it work with the update form which one is it can u sen it again??

The code I had did upload an image so the issue is either file paths not being correct, the directory not existing in which case you need to make the directory, or directory permissions not allowing you to write to the directory. If you check these each of these, you should find your problem.

upload image instead sends word Array into database why

yes like that it updates

What happens if you try to modify any record?

$result = mysql_query("UPDATE driversnew SET name = 'skysport' WHERE id = 82");

Is the record updated?

ok i finaly manage to get the form to update bt one foul if user doesnt send a new image the form will empty the previous is like it as long it press submit it send data empty if no new image uploaded how can i make so like if user doesnt modify the image to keep same image name on the database???

I’m getting lost here again u guys probabbly rite it has security issues i will look into that bt rite now if i cant get to update and upload the new image i dnt think i will worry about it as i wont be able to get up and running so please help on why is not upoloading and instead is sending the word array now i thought it might be because of this

On the form the name of input is image but the on the upload process changes the value image to image_name so how do i get this to wrk on the update considering a normal update format would be like this

$image = $_FILES['image'];
$query = "UPDATE driversnew SET image= '$image

but because on te upload process takes the value image to $image_name what format the above would have to be cz rite now it how it look just sends teh word Array and doesnt upload the image

ok this how i got by putting all my script in bettwen ur comments no success

<?php
// ----------------------------
define('ROOT_DIR', './');
define('THIS_SCRIPT', 'news');
define('PROPER', TRUE);
define("GALLERY_IMG_DIR", "./images/");

// ----------------------------



// ----------------------------
//PLACE YOUR FUNCTIONS HERE

 $id = $_POST['id']; 
    $name = $_POST['name'];
    $location = $_POST['location'];
    $date_of_birth = $_POST['date_of_birth'];
    $car_number = $_POST['car_number'];
    $favourite_track = $_POST['favourite_track'];
    $least_favourite_track = $_POST['least_favourite_track'];
    $achievements = $_POST['achievements'];
    $sponsors = $_POST['sponsors'];    
    $email = $_POST['email'];    
    $newname  = $_FILES['image'];
// ----------------------------




// ----------------------------

include_once(ROOT_DIR. 'includes/common.inc.php');
// ----------------------------

//THIS IS WHERE WE WILL START OUR CODE

// Start with an if statement to check whether the form has been submitted
if($_GET['Submit']){

// Check if there has been a file uploaded
    if($_FILES['image']['tmp_name'] && $_FILES['image']['error'] === 0){
// A file has been uploaded so check whether a file reference already exists in the database
       
        $query = "SELECT id, image FROM driversnew WHERE id = {$_GET['drivers']}";

 $result = mysql_query($query);
 
// There is an existing image
    if (mysql_num_rows($result) == 1) {

      $row = mysql_fetch_assoc($result);
      

// remove the image and the thumbnail from the server
      unlink(GALLERY_IMG_DIR . $row['image']);
      unlink(GALLERY_IMG_DIR . 'thumbs/' . $row['image']);
      
      
// Save the file using your functions
      
      define ("MAX_SIZE","100");
     // define the width and height for the thumbnail
      // note that theese dimmensions are considered the maximum dimmension and are not fixed,
        // because we have to keep the image ratio intact or it will be deformed
define ("WIDTH","150");
define ("HEIGHT","100");

     // this is the function that will create the thumbnail image from the uploaded image
      // the resize will be done considering the width and height defined, but without deforming the image
function make_thumb($img_name,$filename,$new_w,$new_h)
{
       //get image extension.
$ext=getExtension($img_name);
      //creates the new image using the appropriate function from gd library
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);

if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);

        //gets the dimmensions of the image
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);

    // next we will calculate the new dimmensions for the thumbnail image
    // the next steps will be taken:
    // 1. calculate the ratio by dividing the old dimmensions with the new ones
    // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
    // and the height will be calculated so the image ratio will not change
    // 3. otherwise we will use the height ratio for the image
    // as a result, only one of the dimmensions will be from the fixed ones
$ratio1=$old_x/$new_w;
$ratio2=$old_y/$new_h;
if($ratio1>$ratio2) {
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}
else {
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}

// we create a new image with the new dimmensions
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);

// resize the big image to the new created one
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);

// output the created image to the file. Now we will have the thumbnail into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_img,$filename);
else
imagejpeg($dst_img,$filename);

//destroys source and destination images.
imagedestroy($dst_img);
imagedestroy($src_img);
}

// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}

// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
//and it will be changed to 1 if an errro occures. If the error occures the file will not be uploaded.
$errors=0;
// checks if the form has been submitted
if(isset($_POST['Submit']))
{
//reads the name of the file the user submitted for uploading
$image=$_FILES['image']['name'];
// if it is not empty
if ($image)
{
// get the original name of the file from the clients machine
$filename = stripslashes($_FILES['image']['name']);

// get the extension of the file in a lower case format
$extension = getExtension($filename);
$extension = strtolower($extension);
// if it is not a known extension, we will suppose it is an error, print an error message
//and will not upload the file, otherwise we continue
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png"))
{
echo '<h1>Unknown extension!</h1>';
$errors=1;
}
else
{
// get the size of the image in bytes
// $_FILES[\\'image\\'][\\'tmp_name\\'] is the temporary filename of the file in which the uploaded file was stored on the server
$size=getimagesize($_FILES['image']['tmp_name']);
$sizekb=filesize($_FILES['image']['tmp_name']);

//compare the size with the maxim size we defined anuploadd print error if bigger
if ($sizekb > MAX_SIZE*2024)
{
echo '<h1>You have exceeded the size limit!</h1>';
$errors=1;
}

//we will give an unique name, for example the time in unix time format
$image_name=time().'.'.$extension;
//the new name will be containing the full path where will be stored (images folder)
$newname="images/".$image_name;
$copied = copy($_FILES['image']['tmp_name'], $newname);
//we verify if the image has been uploaded, and print error instead
if (!$copied)
{
echo '<h1>Copy unsuccessfull!</h1>';
$errors=1;
}
else
{
// the new thumbnail image will be placed in images/thumbs/ folder
$thumb_name='images/thumbs/'.$image_name;
        // call the function that will create the thumbnail. The function will get as parameters
        //the image name, the thumbnail name and the width and height desired for the thumbnail
$thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT);
}} }}
      
      
// Create an UPDATE query to update the database    
$query = "UPDATE driversnew SET name = '$name', location = '$location', date_of_birth='$date_of_birth', car_number='$car_number', favourite_track='$favourite_track', least_favourite_track='$least_favourite_track', achievements='$achievements', sponsors='$sponsors', email='$email'";

} else {

// There is no existing image

        if (mysql_num_rows($result) == 0) {

      $row = mysql_fetch_assoc($result);
      
      
      // Save the file using your functions
      
      define ("MAX_SIZE","100");
     // define the width and height for the thumbnail
      // note that theese dimmensions are considered the maximum dimmension and are not fixed,
        // because we have to keep the image ratio intact or it will be deformed
define ("WIDTH","150");
define ("HEIGHT","100");

     // this is the function that will create the thumbnail image from the uploaded image
      // the resize will be done considering the width and height defined, but without deforming the image
function make_thumb($img_name,$filename,$new_w,$new_h)
{
       //get image extension.
$ext=getExtension($img_name);
      //creates the new image using the appropriate function from gd library
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);

if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);

        //gets the dimmensions of the image
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);

    // next we will calculate the new dimmensions for the thumbnail image
    // the next steps will be taken:
    // 1. calculate the ratio by dividing the old dimmensions with the new ones
    // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
    // and the height will be calculated so the image ratio will not change
    // 3. otherwise we will use the height ratio for the image
    // as a result, only one of the dimmensions will be from the fixed ones
$ratio1=$old_x/$new_w;
$ratio2=$old_y/$new_h;
if($ratio1>$ratio2) {
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}
else {
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}

// we create a new image with the new dimmensions
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);

// resize the big image to the new created one
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);

// output the created image to the file. Now we will have the thumbnail into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_img,$filename);
else
imagejpeg($dst_img,$filename);

//destroys source and destination images.
imagedestroy($dst_img);
imagedestroy($src_img);
}

// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}

// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
//and it will be changed to 1 if an errro occures. If the error occures the file will not be uploaded.
$errors=0;
// checks if the form has been submitted
if(isset($_POST['Submit']))
{
//reads the name of the file the user submitted for uploading
$image=$_FILES['image']['name'];
// if it is not empty
if ($image)
{
// get the original name of the file from the clients machine
$filename = stripslashes($_FILES['image']['name']);

// get the extension of the file in a lower case format
$extension = getExtension($filename);
$extension = strtolower($extension);
// if it is not a known extension, we will suppose it is an error, print an error message
//and will not upload the file, otherwise we continue
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png"))
{
echo '<h1>Unknown extension!</h1>';
$errors=1;
}
else
{
// get the size of the image in bytes
// $_FILES[\\'image\\'][\\'tmp_name\\'] is the temporary filename of the file in which the uploaded file was stored on the server
$size=getimagesize($_FILES['image']['tmp_name']);
$sizekb=filesize($_FILES['image']['tmp_name']);

//compare the size with the maxim size we defined anuploadd print error if bigger
if ($sizekb > MAX_SIZE*2024)
{
echo '<h1>You have exceeded the size limit!</h1>';
$errors=1;
}

//we will give an unique name, for example the time in unix time format
$image_name=time().'.'.$extension;
//the new name will be containing the full path where will be stored (images folder)
$newname="images/".$image_name;
$copied = copy($_FILES['image']['tmp_name'], $newname);
//we verify if the image has been uploaded, and print error instead
if (!$copied)
{
echo '<h1>Copy unsuccessfull!</h1>';
$errors=1;
}
else
{
// the new thumbnail image will be placed in images/thumbs/ folder
$thumb_name='images/thumbs/'.$image_name;
        // call the function that will create the thumbnail. The function will get as parameters
        //the image name, the thumbnail name and the width and height desired for the thumbnail
$thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT);
}} }}

// Create an INSERT query to add the details to your database
$query = "UPDATE driversnew SET name = '$name', location = '$location', date_of_birth='$date_of_birth', car_number='$car_number', favourite_track='$favourite_track', least_favourite_track='$least_favourite_track', achievements='$achievements', sponsors='$sponsors', email='$email'";

}
}



  } else {
    // No file uploaded so do nothing
  }

} else {
  // No form submitted so do nothing
}

// ---------------------------- 
?>

No problems thanks i am stickin evrything in the code u sent me… my form method is this one

<form action = 'modifydriveraction.php?drivers=<?php echo $row['id']; ?>' method="POST" enctype="multipart/form-data">

ohh thanks once again

I can honestly say that I can no longer follow your code as it is very jumbled up. Also, without seeing the form I cannot say whether you are using the right global variable ($_GET or $_POST). My advice would be to copy the code I gave you and start from there. As you drop code in, it should start to make sense. Make sure that you are using the right global variable: if your method in the form is post, use $_POST; if you use get, use $_GET - but it is essential that you get this right otherwise we have no idea why anything is or isn’t working.

:smiley: I was getting all excited and just started furiously typing before his site went live. You are of course correct.

if (isset($_GET[‘drivers’]))
{
// get the image file name so we
// can delete it from the server
$sql = "SELECT id, image

       FROM driversnew 

       WHERE id = {$_GET['drivers']}"; 

Please tell me this is not the exact code! You NEED to make sure the $_GET variable has been validated. This is wide open to XSS attacks.

ok this is how i cnaged the old upload insert into modify but still doesnt work i removed the unlink part so just have the upload script and at the buttom the update bt still not working

so is the perfect working upload nothing changed on that but now the update just not wrking has it update sets all blank

<?php
define('ROOT_DIR', './');
define('THIS_SCRIPT', 'news');
define('PROPER', TRUE);
/**
* include common files
*/
include_once(ROOT_DIR. 'includes/common.inc.php');

//define a maxim size for the uploaded images
define ("MAX_SIZE","100");
// define the width and height for the thumbnail
// note that theese dimmensions are considered the maximum dimmension and are not fixed,
// because we have to keep the image ratio intact or it will be deformed
define ("WIDTH","150");
define ("HEIGHT","100");

// this is the function that will create the thumbnail image from the uploaded image
// the resize will be done considering the width and height defined, but without deforming the image
function make_thumb($img_name,$filename,$new_w,$new_h)
{
//get image extension.
$ext=getExtension($img_name);
//creates the new image using the appropriate function from gd library
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);

if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);

//gets the dimmensions of the image
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);

// next we will calculate the new dimmensions for the thumbnail image
// the next steps will be taken:
// 1. calculate the ratio by dividing the old dimmensions with the new ones
// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
// and the height will be calculated so the image ratio will not change
// 3. otherwise we will use the height ratio for the image
// as a result, only one of the dimmensions will be from the fixed ones
$ratio1=$old_x/$new_w;
$ratio2=$old_y/$new_h;
if($ratio1>$ratio2) {
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}
else {
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}

// we create a new image with the new dimmensions
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);

// resize the big image to the new created one
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);

// output the created image to the file. Now we will have the thumbnail into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_img,$filename);
else
imagejpeg($dst_img,$filename);

//destroys source and destination images.
imagedestroy($dst_img);
imagedestroy($src_img);
}

// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}

// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
//and it will be changed to 1 if an errro occures. If the error occures the file will not be uploaded.
$errors=0;
// checks if the form has been submitted
if(isset($_POST['Submit']))
{
//reads the name of the file the user submitted for uploading
$image=$_FILES['image']['name'];
// if it is not empty
if ($image)
{
// get the original name of the file from the clients machine
$filename = stripslashes($_FILES['image']['name']);

// get the extension of the file in a lower case format
$extension = getExtension($filename);
$extension = strtolower($extension);
// if it is not a known extension, we will suppose it is an error, print an error message
//and will not upload the file, otherwise we continue
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png"))
{
echo '<h1>Unknown extension!</h1>';
$errors=1;
}
else
{
// get the size of the image in bytes
// $_FILES[\\'image\\'][\\'tmp_name\\'] is the temporary filename of the file in which the uploaded file was stored on the server
$size=getimagesize($_FILES['image']['tmp_name']);
$sizekb=filesize($_FILES['image']['tmp_name']);

//compare the size with the maxim size we defined and print error if bigger
if ($sizekb > MAX_SIZE*2024)
{
echo '<h1>You have exceeded the size limit!</h1>';
$errors=1;
}

//we will give an unique name, for example the time in unix time format
$image_name=time().'.'.$extension;
//the new name will be containing the full path where will be stored (images folder)
$newname="images/".$image_name;
$copied = copy($_FILES['image']['tmp_name'], $newname);
//we verify if the image has been uploaded, and print error instead
if (!$copied)
{
echo '<h1>Copy unsuccessfull!</h1>';
$errors=1;
}
else
{
// the new thumbnail image will be placed in images/thumbs/ folder
$thumb_name='images/thumbs/'.$image_name;
// call the function that will create the thumbnail. The function will get as parameters
//the image name, the thumbnail name and the width and height desired for the thumbnail
$thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT);
}} }}

//If no errors registred, print the success message and show the thumbnail image created
if(isset($_POST['Submit']) && !$errors)

//If no errors registred, print the success message and show the thumbnail image created


  $id = $_POST['id'] ;
    $name = $_POST['name'];
    $location = $_POST['location'];
    $date_of_birth = $_POST['date_of_birth'];
    $car_number = $_POST['car_number'];
    $favourite_track = $_POST['favourite_track'];
    $least_favourite_track = $_POST['least_favourite_track'];
    $achievements = $_POST['achievements'];
    $sponsors = $_POST['sponsors'];    
    $email = $_POST['email'];    
    $image_name = $_FILES['image_image'];
    
$query = "UPDATE driversnew SET name = '$name', location = '$location', date_of_birth='$date_of_birth', car_number='$car_number', favourite_track='$favourite_track', least_favourite_track='$least_favourite_track', achievements='$achievements', sponsors='$sponsors', email='$email', image_name='$image_name' WHERE id = '$id'";

mysql_query($query);

echo '<pre>';
var_dump($_FILES);
echo '</pre>'; 



echo "<h1>Thumbnail created Successfully!</h1>";
echo '<img src="'.$image.'">';
echo ''.$name.''; echo'<br />';
echo ''.$image.'';




?>

almost perfect but just one issue not uploading the new image i wonder if is cz on the part upload script that changes the image variable to $image_name

because on the upload script i have, thats a different one thats the insert one i have like this

mysql_query("INSERT INTO driversnew (id,  image)
VALUES ('$_POST[id]', '$image_name')");

so do i need to change the Update one with something like this?? change the image to image='$image_namecz current is like this??

$query = "UPDATE driversnew SET name = '$name',  image='$image' WHERE id = '$id'";

As long as the file names are exactly the same, then the original file will be overwritten.

Okay, in your form you have used method=“get”. This means that when you have processed your form you have used $_GET[‘id’], $_GET[‘name’] and so on. However, when you have merged all your code together, for some reason you started using $_POST[‘id’], $_POST[‘name’]. Because you have used method=“get” there are no $_POST variables. To demonstrate, on the broken code add these lines.


echo 'GET VARIABLES:';
echo '<pre>';
var_dump($_GET);
echo '</pre><br /><hr /><br />';

echo 'POST VARIABLES:';
echo '<pre>';
var_dump($_POST);
echo '</pre><br /><hr /><br />';

echo 'REQUEST VARIABLES:';
echo '<pre>';
var_dump($_REQUEST);
echo '</pre><br /><hr /><br />';

From here you should see (if I’m right) values for the $_GET array, nothing for the $_POST array and values for the $_REQUEST array. What you need to do is change all your $_POST variables to $_GET if that is what your form method is, or you could change all $_GET and $_POST references to $_REQUEST which pulls in all values for both arrays.

ok i gt the update to work but now the only problem is it doesnt upload the image into the directory any idea

<?php
define('ROOT_DIR', './');
define('THIS_SCRIPT', 'news');
define('PROPER', TRUE);
/**
* include common files
*/
include_once(ROOT_DIR. 'includes/common.inc.php');

    $id = $_GET['id']; 
    $name = $_GET['name'];
    $location = $_GET['location'];
    $date_of_birth = $_GET['date_of_birth'];
    $car_number = $_GET['car_number'];
    $favourite_track = $_GET['favourite_track'];
    $least_favourite_track = $_GET['least_favourite_track'];
    $achievements = $_GET['achievements'];
    $sponsors = $_GET['sponsors'];    
    $email = $_GET['email'];    
    $image  = $_GET['image'];

    
$query = "UPDATE driversnew SET name = '$name', location = '$location', date_of_birth='$date_of_birth', car_number='$car_number', favourite_track='$favourite_track', least_favourite_track='$least_favourite_track', achievements='$achievements', sponsors='$sponsors', email='$email', image='$image' WHERE id = '$id'";


mysql_query($query) or die(mysql_error()); 
// execute query 
 $result = mysql_query($query) ;
 //if there was a problem - get the error message and go back 
 if (!$result)
  {
     echo "There were errors :<br>". mysql_error();
  } 
  else //OK, then the insertion was successful
  
  {
    
print "<p>The following records has been updated:  </p>";

    //Create a new query to display the new row in a table
    $query = "SELECT id, name, location, date_of_birth, car_number, favourite_track, least_favourite_track, achievements, sponsors, email, image FROM driversnew WHERE id = '$id' ";    $result = mysql_query($query) or die ("Error in query: $query. ".mysql_error()); 
    echo "<table cellpadding=10 border=1>";  
    while($row = mysql_fetch_array($result)) { 
          echo "<tr>"; 
     echo "<td>".$row["id"]."</td>";
     echo "<td><strong>" .$row["name"]."</strong></td>";
     echo "<td><strong>".$row["location"]."</strong></td>"; 
     echo "<td><strong>" .$row["date_of_birth"]."</strong></td>";
     echo "<td><strong>".$row["car_number"]."</strong></td>";
     echo "<td><strong>" .$row["favourite_track"]."</strong></td>";
     echo "<td><strong>".$row["least_favourite_track"]."</strong></td>"; 
     echo "<td><strong>" .$row["achievements"]."</strong></td>";
     echo "<td><strong>".$row["sponsors"]."</strong></td>";
     echo "<td><strong>" .$row["email"]."</strong></td>";
     echo "<td><strong>".$row["image"]."</strong></td>"; 
     echo "</tr>"; 
    } //End while
    echo "</table>"; 
    
    /// start uploading process
    define ("MAX_SIZE","100");
// define the width and height for the thumbnail
// note that theese dimmensions are considered the maximum dimmension and are not fixed,
// because we have to keep the image ratio intact or it will be deformed
define ("WIDTH","150");
define ("HEIGHT","100");

// this is the function that will create the thumbnail image from the uploaded image
// the resize will be done considering the width and height defined, but without deforming the image
function make_thumb($img_name,$filename,$new_w,$new_h)
{
//get image extension.
$ext=getExtension($img_name);
//creates the new image using the appropriate function from gd library
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);

if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);

//gets the dimmensions of the image
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);

// next we will calculate the new dimmensions for the thumbnail image
// the next steps will be taken:
// 1. calculate the ratio by dividing the old dimmensions with the new ones
// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
// and the height will be calculated so the image ratio will not change
// 3. otherwise we will use the height ratio for the image
// as a result, only one of the dimmensions will be from the fixed ones
$ratio1=$old_x/$new_w;
$ratio2=$old_y/$new_h;
if($ratio1>$ratio2) {
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}
else {
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}

// we create a new image with the new dimmensions
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);

// resize the big image to the new created one
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);

// output the created image to the file. Now we will have the thumbnail into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_img,$filename);
else
imagejpeg($dst_img,$filename);

//destroys source and destination images.
imagedestroy($dst_img);
imagedestroy($src_img);
}

// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}

// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
//and it will be changed to 1 if an errro occures. If the error occures the file will not be uploaded.
$errors=0;
// checks if the form has been submitted
if(isset($_POST['Submit']))
{
//reads the name of the file the user submitted for uploading
$image=$_FILES['image']['name'];
// if it is not empty
if ($image)
{
// get the original name of the file from the clients machine
$filename = stripslashes($_FILES['image']['name']);

// get the extension of the file in a lower case format
$extension = getExtension($filename);
$extension = strtolower($extension);
// if it is not a known extension, we will suppose it is an error, print an error message
//and will not upload the file, otherwise we continue
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png"))
{
echo '<h1>Unknown extension!</h1>';
$errors=1;
}
else
{
// get the size of the image in bytes
// $_FILES[\\'image\\'][\\'tmp_name\\'] is the temporary filename of the file in which the uploaded file was stored on the server
$size=getimagesize($_FILES['image']['tmp_name']);
$sizekb=filesize($_FILES['image']['tmp_name']);

//compare the size with the maxim size we defined and print error if bigger
if ($sizekb > MAX_SIZE*2024)
{
echo '<h1>You have exceeded the size limit!</h1>';
$errors=1;
}

//we will give an unique name, for example the time in unix time format
$image_name=time().'.'.$extension;
//the new name will be containing the full path where will be stored (images folder)
$newname="images/".$image_name;
$copied = copy($_FILES['image']['tmp_name'], $newname);
//we verify if the image has been uploaded, and print error instead
if (!$copied)
{
echo '<h1>Copy unsuccessfull!</h1>';
$errors=1;
}
else
{
// the new thumbnail image will be placed in images/thumbs/ folder
$thumb_name='images/thumbs/'.$image_name;
// call the function that will create the thumbnail. The function will get as parameters
//the image name, the thumbnail name and the width and height desired for the thumbnail
$thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT);
}} }}
    
    
   } //End Else insertion successful
//End else successful Amendment     

?>