what's faster, CURL or fsockopen (POST request)? Maybe there is something faster than both of them?
If not, then if I'll reuse curl's handle, will it be equal to reusing connection? (So connecting to server is skipped, only writing and receiving response)
It does not make a significant difference, maybe fsockopen to be slightly faster, but cURL has so much easy to use features that the trade-off for a 0.00000001 microsecond like speedup is.. acceptable in any case.