(PHP 4 >= 4.0.5)
array_reduce -- Iteratively reduce the array to a single value using a callback functionmixed array_reduce
(array input, mixed callback [, int
initial])
array_reduce() applies iteratively the callback function to the elements of the array input, so as to reduce the array to a single value. If the optional intial is avaliable, it will be used at the beginning of the process, or as a final result in case the array is empty.
Example 1. array_reduce() example
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This will result in $b containing 15, $c containing 1200 (= 1*2*3*4*5*10), and $d containing 1.
See also array_filter(), array_map().