map_array |
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map_array |
mixed *map_array(mixed *arr, string fun, object ob, mixed extra)
Returns an array holding the items of arr mapped through ob->fun(). The function fun in ob is called for each element in arr with that element as parameter. A second parameter extra is sent in each call if given.
Principal function:
foreach (index) arr[index] = ob->fun(arr[index],extra);
The value returned by ob->fun(arr[.index.], extra) replaces the existing element in the array. If arr is not an array, then 0 will be returned.
