php set_include_path function confusion? -


i have searched internet , (php mannual little hard understand) didn't satisfied php's set_include_path, know used set include path running script,but dont quit understand path_separator constant in php set_include_path function.

so example 

set_include_path('./php-include'.path_separator.'./functions');

i don't quiet please 1 explain in advance.

path_separator character that's used separate multiple paths in string, such include_path.

on unix, path_separator ':' while on windows it's ';'


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