Imagecopyresampled() - How Do You Edit A Filename?

PHP
1

Okay so imagecopyresampled()… let’s say I just uploaded the file funnycat.jpg, so for the thumbnail I want to call it funnycatthm.jpg. How would I do that??? When you get the filename it automatically includes the extension. But it (http://www.php.net/manual/en/function.imagecopyresampled.php) says to enter the “Destination image link resource” as a parameter. So that means the entire file name (directories included and all, like site.com/images/coolstuff/funnycat.jpg), right? So how the heck do I add something before the extension to give the new file a name? :sick: I’m so confused.

Any help with this would be immensely appreciated.

2

You can use imagejpeg to output a jpg file to whatever file name you like.

3

Well, I understand that I can give it whatever name I want, but the images that are upload have file names that are generated for them, so I would like to just be able to tack something onto the end of it (such as ‘thm’), I want to know if it’s possible to do that.

Is there a way for it to tell me what the extension is? Even that would be helpful (since, for example JPEGs can be either jpg or jpeg), because then I could just take off the file extension, add what I want, and then stick it back on…

4

What is the code that generates the file names for the uploaded files? I would think you should be able to adjust that code to add ‘thm’ to the file name.

5 
$now = time();
while (file_exists($uploadFileName = $uploaddir . $now . '-' . $_FILES['file']['name']))
{
	$now++;
}

That’s the code, but I was just thinking that I can just add what I want to the beginning instead of the end ^_^; -sigh- My problems are always so simple to solve.

6

What you want to do is separate the filename bit from the extension, append what you want to the filename, and then glue them back together. Like so:


// assume uploaded file
$filename=$_FILES['myfile']['name'];


// get the position of the last (!) dot in the filename
$pos=strrpos($filename, '.')

// get the file name
$name=substr($filename, 0, $pos);

// get the extension
$ext=substr($filename, $pos + 1);

// set the new name
$newName=$name.'hth';

// glue back together
$newFilename=$newName.'.'.$ext;

Note that this uses $ext without the dot in the extension, which makes it easer if you want to check the extension later; ‘jpg’ is easier to read and type than ‘.jpg’ :slight_smile:

7

Ooooooh; I knew there must’ve been a way to do that. Thank you!!! :smiley: