Q: How to pass slash / in an URL? On this page there are many abbreviation / acronym entries: http://abbreviations.wordcrow.com/acronyms/D/
They are generated in PHP:
<a href="/define/<?php echo rawurlencode($abbreviation['title'])?>/">
    <strong><?php echo $abbreviation['title']?></strong>
</a>

I used rawurlencode because many acronyms contain bizarre characters such as #, & and even /.
And the URL requests such as:

http://abbreviations.wordcrow.com/define/DA%26E/

Would first be fed to rawurldecode():
$acronym = rawurldecode('DA%26E'); // $acronym would be 'DA&E'.

And then used in database queries. 
While DA&E is all right, DA/C is not. Try this URL http://abbreviations.wordcrow.com/define/DA%2FC/ and you would end up with http://abbreviations.wordcrow.com/define/DA/C/ which is an error page.
I can extend more code to recognize /define/DA/C/ but it's just weird and non-sensible. I tried both Chrome and Firefox and they all automatically convert DA%2FC to DA/C. But with DA%26E, they don't.
What am I doing wrong?

A: While you need to do what you need to do - 
An option i finally used when AllowEncodedSlashes On didn't work was found here... (using slugs) - not only faster on the lookup/creation of them, but it [main point] solved my situation faster and had more 'url juice' :).
Found originally here:
http://snipplr.com/view/2809/convert-string-to-slug/
Used the modified here [used in my own files]:
http://www.finalwebsites.com/forums/topic/convert-string-to-slug
