调整文件夹和子文件夹中的图像大小

Question

I have this PHP code that resizes images perfectly: smart_resize_image(path/to/image.jpg);

Now I want to run it on all images inside a folder say parent and all of its subfolders child1, child2 etc.. every hour.

Is this something i could do on a share host? Yes, I can setup cron but I'm not sure how to run it on folders and its subfolders.

Thanks!

Answer 1

You're looking for a recursive algorithm, to drill down through folders:

resizing( '/folder' );

function resizing( $folder )
{
  foreach( scandir( $folder ) as $file )
  {
    $filepath = $folder . '/' . $file;
    if( preg_match( '/^\./', $file ) ) continue; // not . and ..
    if( is_dir( $filepath ) ) resizing( $filepath ); // Send it off to drill - with this function!!
    // It's time to resize
    smart_resize_image( $filepath );
  }
}