What's the difference between http_build_str() and http_build_query()?

Question

I just discover these functions seems redundant. http_build_query() belong to standard php functions. http_build_str() is part of pecl_http package.

are they 100% redundant ?

I am focused on getting the perfect reverse function of parse_str(). since http_build query() is broken. ( see reference ) I wondering if there is some way that http_build_str() could have any advantage to support/tolerate more edge cases.

Answer 1

By reading the API, it appears that http_build_str() does not URL encode the parameters, while http_build_query() does.

http_build_str() also can take either an object OR an object as its primary argument, while http_build_query() only takes an array.

Answer 2

Redundant to an extent. But, if you refer to the PHP documentation, you ought to see distinct differences:

http://php.net/manual/en/function.http-build-query.php

http://php.net/manual/en/function.http-build-str.php

In the very least, you ought to see that http_build_query() is core PHP and supports an additional encoding style parameter. And you ought to see that http_build_str() is a PECL extension.