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phpregexglob

How to use glob to find thumbnails

Say I upload a file called myimage.jpg and I generate thumbnails of this image that append width x height to the filename. I might have a directory of images that looks like this:

myimage.jpg
myimage-100x50.jpg
myimage-500x250.jpg
myimage-430x300.jpg

When I want to delete this image I need to delete all of the thumbs as well. ow would I use glob to find the original image and all of the thumbnails but not any other images that may be in the directory?

Solution

  • I did this in the end:

    // find all images that match the filename
foreach (glob(myimage.*) as $filename) {

    // use regex to filter out any that have a similar name and are not thumbs
    if(preg_match("/(\myimage-\b)[0-9]\d*x[0-9]\d*(\b.jpg\b)/", $filename)) {

        // delete the thumb
        unlink($filename);
    }
}

// delete the original image
unlink(myimage.jpg);