Question

In PHP, I have two paths on a server that both have a matching part. I’d like to join them, but delete the part that is equal.

EXAMPLE:

Path #1:
/home7/username/public_html/dir/anotherdir/wp-content/uploads

Path #2:
/dir/anotherdir/wp-content/uploads/2011/09/image.jpg

You see the part /dir/anotherdir/wp-content/uploads is the same in both strings, but when I simply join them I would have some directories twice.

The output I need is this:
/home7/username/public_html/dir/anotherdir/wp-content/uploads/2011/09/image.jpg

Since the dirs can change on different servers I need a dynamic solution that detects the matching part from #2 and removes it on #1 so I can trail #2 right after #1 🙂

Answer 1

$path1 = "/home7/username/public_html/dir/anotherdir/wp-content/uploads";
$path2 = "/dir/anotherdir/wp-content/uploads/2011/09/image.jpg";

echo $path1 . substr($path2, strpos($path2, basename($path1)) + strlen(basename($path1)));