Name
array_udiff
Synopsis
array array_udiff(arrayarray1
, arrayarray2
[, ... arrayarrayN
], stringfunction
)
Returns an array containing all the values in
array1
that are not present in any of the
other arrays. Only the values are used to check for equality; that
is, “a” => 1 and “b” => 1 are considered equal. The function
function
is used to compare the values of
the elements for equality. The function is called with two
parameters—the values to compare. It should return an integer less
than 0 if the first argument is less than the second, 0 if the first
and second arguments are equal, and an integer greater than 0 if the
first argument is greater than the second. The keys of the values
are preserved.
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