create Thumbnails

[kante]

I found this function

function thumb($source, $scale, $quality = 80)
{
/ Check for the image's exisitance /
if (!file_exists($source)) {
echo 'File does not exist!';
}
else {
$size = getimagesize($source); // Get the image dimensions and mime type
$w = $size[0] / $scale; // Width divided
$h = $size[1] / $scale; // Height divided
$resize = imagecreatetruecolor($w, $h); // Create a blank image

        /* Check quality option. If quality is greater than 100, return error */ 
        if ($quality > 100) { 
            echo 'The maximum quality is 100. Quality changes only affect JPEG images.'; 
        } 
        else {              
            header('Content-Type: '.$size['mime']); // Set the mime type for the image 

            switch ($size['mime']) { 
                case 'image/jpeg': 
                $im = imagecreatefromjpeg($source); 
                imagecopyresampled($resize, $im, 0, 0, 0, 0, $w, $h, $size[0], $size[1]); // Resample the original JPEG 
                imagejpeg($resize, '', $quality); // Output the new JPEG 
                break; 

                case 'image/png': 
                $im = imagecreatefrompng($source); 
                imagecopyresampled($resize, $im, 0, 0, 0, 0, $w, $h, $size[0], $size[1]); // Resample the original PNG 
                imagepng($resize, '', $quality); // Output the new PNG 
                break; 
            } 

            imagedestroy($im); 
        } 
    } 
}   

It simply gets sourceImageFile, scaleImage, qualityImage as parameter
and puts out header of the resized Image.

What i would to reach is to modify this function to obtain these aims:

• input a source folder containing some images
• then instead of displaying them with header func in the browser i would like to register the file resized into a database.

What do u suggest?

Thanks

[Natty_Dreadlock]

hi,

input a source folder containing some images
check out http://de3.php.net/manual/en/function.scandir.php - it will return a list of the files in a given directory - then u can use foreach to get all filenames - u may want to filter them by their extension, so that u only work on images (.gif, .jpg, .jpeg, .png) - use pathinfo() and check the key "extension" of the returned array.
then u can call your function on every image in the foreach loop.

then instead of displaying them with header func in the browser i would like to register the file resized into a database.
1. replace the line "header('Content-Type: '.$size['mime']); // Set the mime type for the image" with "ob_start();"
2. at the end of your function put the following commands: $thumbnail = ob_get_contents(); ob_end_clean(); $mime = $size["mime"];
3. now, insert code to store the contents of $thumbnail and $mime in your db, e.g. SQL: INSERT INTO test (id, image, mime) VALUES(0, $thumbnail, $mime);

hth