Description:
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I would like to see to string functions added to php. I know they are easy to 
implement in userland, but it would be nice to have them in the core.
I coded them up and attached a patch.
The functions are:

  str_begins_with(string $haystack, string $needle [, $case_insensitive = false])

and 

  str_ends_with(string $haystack, string $needle [, $case_insensitive = false])

I think they are pretty self explanatory, check if a string begins with or ends 
with another string.