Friednly URL

[eluser]behnampmdg3[/eluser]
Hi;

Ther is a table with list of place names like surfers paradise, mermaid beach, cooloongata airport, mainbeach etc.

1 - Would it better practise to simply make the URLs using id or names?

For example

www.test.com/rentals/332

VS

www.test.com/rentals/southport

Common sense tells me ids are better because it is straight forward int and simple queires, but I see many websites use string.

2-How can I make the URL friednly for such "multiple word" names? The names are stored in the database with white space. For example: main beach.


3 - Whichone is prefered? - or + or _ or something else?

For example:

www.test.com/rentals/mermaid-beach

www.test.com/rentals/mermaid+beach

www.test.com/rentals/mermaid_beach

Thank you