Two strings

[NZ_Kiwis]

I want to compare two string and if there is a close enough match then return something

For example

"This car is blue"
"This car is red"

Is this sort of thing possible in PHP and how would it match? based on a value of the same characters being the same? for example an 80% match?

[Weedpacket]

[man]similar_text[/man]

(You mean there's a manual?!)