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Full Discussion: function return array
Top Forums Shell Programming and Scripting function return array Post 302192246 by dophine on Tuesday 6th of May 2008 12:16:26 PM
Old 05-06-2008
then I have another issue. how to assign an array value to another one i.e. clone?
 

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ARRAY_REDUCE(3) 							 1							   ARRAY_REDUCE(3)

array_reduce - Iteratively reduce the array to a single value using a callback function

SYNOPSIS
mixed array_reduce NULL (array $array, callable $callback, [mixed $initial]) DESCRIPTION
array_reduce(3) applies iteratively the $callback function to the elements of the $array, so as to reduce the array to a single value. PARAMETERS
o $array - The input array. o $callback - mixed callback (mixed $carry, mixed $item) o $carry - Holds the return value of the previous iteration; in the case of the first iteration it instead holds the value of $ini- tial. o $item - Holds the value of the current iteration. o $initial - If the optional $initial is available, it will be used at the beginning of the process, or as a final result in case the array is empty. RETURN VALUES
Returns the resulting value. If the array is empty and $initial is not passed, array_reduce(3) returns NULL. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | Changed $initial to allow mixed, previously | | | integer. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 array_reduce(3) example <?php function sum($carry, $item) { $carry += $item; return $carry; } function multiplication($carry, $item) { $carry *= $item; return $carry; } $a = array(1, 2, 3, 4, 5); $x = array(); var_dump(array_reduce($a, "sum")); // int(15) var_dump(array_reduce($a, "multiplication", 10)); // int(1200), because: 10*1*2*3*4*5 var_dump(array_reduce($x, "sum", "No data to reduce")); // string(17) "No data to reduce" ?> SEE ALSO
array_filter(3), array_map(3), array_unique(3), array_count_values(3). PHP Documentation Group ARRAY_REDUCE(3)
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