michelf/php-markdown — pull request #16 by smokris (2012-02-08 16:19:15+00:00)
Title: Allow multiple references to the same footnote

Currently the following markdown doesn't parse as I'd expect:

```
- refer to footnote A[^1]
- refer to footnote B[^2]
- refer to footnote A again[^1]

[^1]: footnote A
[^2]: footnote B
```

The "refer to footnote A again[^1]" line doesn't get linked to footnote A.

I've modified the footnote callback so that this is possible.