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--TEST-- Test array_merge_recursive() function : usage variations - two dimensional arrays --FILE-- <?php /* Prototype : array array_merge_recursive(array $arr1[, array $...]) * Description: Recursively merges elements from passed arrays into one array * Source code: ext/standard/array.c */ /* * Testing the functionality of array_merge_recursive() by passing * two dimensional arrays for $arr1 argument. */ echo "*** Testing array_merge_recursive() : two dimensional array for \$arr1 argument ***\n"; // initialize the 2-d array $arr1 = array( array(1, 2, 3, 1), "array" => array("hello", "world", "str1" => "hello", "str2" => 'world'), array(1 => "one", 2 => "two", "one", 'two'), array(1, 2, 3, 1) ); // initialize the second argument $arr2 = array(1, "hello", "array" => array("hello", 'world')); echo "-- Passing the entire 2-d array --\n"; echo "-- With default argument --\n"; var_dump( array_merge_recursive($arr1) ); echo "-- With more arguments --\n"; var_dump( array_merge_recursive($arr1, $arr2) ); echo "-- Passing the sub-array --\n"; echo "-- With default argument --\n"; var_dump( array_merge_recursive($arr1["array"]) ); echo "-- With more arguments --\n"; var_dump( array_merge_recursive($arr1["array"], $arr2["array"]) ); echo "Done"; ?> --EXPECTF-- *** Testing array_merge_recursive() : two dimensional array for $arr1 argument *** -- Passing the entire 2-d array -- -- With default argument -- array(4) { [0]=> array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(1) } ["array"]=> array(4) { [0]=> string(5) "hello" [1]=> string(5) "world" ["str1"]=> string(5) "hello" ["str2"]=> string(5) "world" } [1]=> array(4) { [1]=> string(3) "one" [2]=> string(3) "two" [3]=> string(3) "one" [4]=> string(3) "two" } [2]=> array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(1) } } -- With more arguments -- array(6) { [0]=> array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(1) } ["array"]=> array(6) { [0]=> string(5) "hello" [1]=> string(5) "world" ["str1"]=> string(5) "hello" ["str2"]=> string(5) "world" [2]=> string(5) "hello" [3]=> string(5) "world" } [1]=> array(4) { [1]=> string(3) "one" [2]=> string(3) "two" [3]=> string(3) "one" [4]=> string(3) "two" } [2]=> array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(1) } [3]=> int(1) [4]=> string(5) "hello" } -- Passing the sub-array -- -- With default argument -- array(4) { [0]=> string(5) "hello" [1]=> string(5) "world" ["str1"]=> string(5) "hello" ["str2"]=> string(5) "world" } -- With more arguments -- array(6) { [0]=> string(5) "hello" [1]=> string(5) "world" ["str1"]=> string(5) "hello" ["str2"]=> string(5) "world" [2]=> string(5) "hello" [3]=> string(5) "world" } Done