This will have to do until the docs come along.

diff --git a/ext/standard/array.c b/ext/standard/array.c
index 7dcf6b7ebbfe395fd9138d2f60bd67ae64e13932..c3596c0f6a2ba89cc6dd5f74a4e3e34c04886073 100644 (file)
--- a/ext/standard/array.c
+++ b/ext/standard/array.c
@@ -2816,7 +2816,7 @@ PHP_FUNCTION(array_sum)
 /* }}} */
 
 /* {{{ proto mixed array_reduce(array input, mixed callback [, int initial])
-   Reduce the array by calling the callback */
+   Iteratively reduce the array to a single value via the callback. */
 PHP_FUNCTION(array_reduce)
 {
        zval **input, **callback, **initial;