> How can I add the function array_sum() to "older" php core installations?
Grep though the current source with 'array_sum', and add the three things
that come up to your 4.0.3-source: a proto in a .h-file, a PHP_FE entry, and
the PHP_FUNCTION itself.
It should work... but why not simply upgrade?
By the way, it is very easy to implement the function in php itself, it's
just a bit less efficient than the core-version.
--Jeroen
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