--TEST-- Test array_pad() function : usage variations - two dimensional array for 'input' argument --FILE-- 1, "two" => 2) ); // initialize the $pad_size and $pad_value arguments $pad_size = 5; $pad_value = "HELLO"; // entire 2-d array echo "-- Entire 2-d array for \$input argument --\n"; var_dump( array_pad($input, $pad_size, $pad_value) ); // positive 'pad_size' var_dump( array_pad($input, -$pad_size, $pad_value) ); // negative 'pad_size' // sub array echo "-- Sub array for \$input argument --\n"; var_dump( array_pad($input[1], $pad_size, $pad_value) ); // positive 'pad_size' var_dump( array_pad($input[1], -$pad_size, $pad_value) ); // negative 'pad_size' echo "Done"; ?> --EXPECT-- *** Testing array_pad() : Passing 2-D array to $input argument *** -- Entire 2-d array for $input argument -- array(5) { [0]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } [1]=> array(2) { [0]=> string(5) "hello" [1]=> string(5) "world" } [2]=> array(2) { ["one"]=> int(1) ["two"]=> int(2) } [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" } array(5) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } [3]=> array(2) { [0]=> string(5) "hello" [1]=> string(5) "world" } [4]=> array(2) { ["one"]=> int(1) ["two"]=> int(2) } } -- Sub array for $input argument -- array(5) { [0]=> string(5) "hello" [1]=> string(5) "world" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" } array(5) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "hello" [4]=> string(5) "world" } Done