Problems uploading image and updating mySQL

[psyget]

hey everyone!

I have an PHP script the uploads an image and sends the path to a mySQL db, it's working fine, the code is below, but i'm having problems with the edit form i'm doing... i can't get it to work... could somebody help me?

see the code below:

 

 

// up here i've declared my variables cause i'm inserting more stuff into the db, and i have a function called getExtension. i just didn't put them here so the post won't be huge ^^

// verifies if the image field is empty; if so, asigns the string 'images/blank.png' to the variable $newname

if (empty($logo)) {
$newname="images/blank.png";
$copied = copy($_FILES['logo']['tmp_name'], $newname);
} else {

// verifies if the image is a valid type

if ($logo) 
{
$filename = stripslashes($_FILES['logo']['name']);
$extension = getExtension($filename);
$extension = strtolower($extension);
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif")) 
{
echo '<h1>Unknown file extension!</h1>';
$errors=1;
}
else
{
$size=filesize($_FILES['logo']['tmp_name']);

// verifies if the size exceeds the maximum size limit

if ($size > MAX_SIZE*1024)
{
echo '<h1>The size of the image exceeds the limit size!</h1>';
$errors=1;
}

// modifies the name of the image and adds the sulfix '_logo', so there won't be duplicates and copies it to the folder 'images'
$image_name=time().'_logo.'.$extension;
$newname="images/".$image_name;
$copied = copy($_FILES['logo']['tmp_name'], $newname);
if (!$copied) 
{
echo '<h1>There were some errors and the files wasn't updated!</h1>';
$errors=1;
}}}}

 

then after that it puts the information inside the mySQL db... till there it's working really fine.

How what i wanna do is the following: i have an edit form, which is supposed to show the information sent to the db and i wanna update it. 

 

If the person leaves the file field blank, i want to keep the same value that's is already in the db.  If the person chooses another image, i want it to perform the exact same process as above, and replace the $newname value that was inserted into the db... but as i said, i'm no expert, i really new to PHP...

 

could somebody help me please? i'd appreciate very much!

thanks in advantage!

 

Rennato

[email protected]

[elis]

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