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--TEST-- Test array_merge_recursive() function : usage variations - common key and value(Bug#43559) --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 * arrays having common key and value. */ echo "*** Testing array_merge_recursive() : arrays with common key and value ***\n"; /* initialize the array having duplicate values */ // integer values $arr1 = array("a" => 1, "b" => 2); $arr2 = array("b" => 2, "c" => 4); echo "-- Integer values --\n"; var_dump( array_merge_recursive($arr1, $arr2) ); // float values $arr1 = array("a" => 1.1, "b" => 2.2); $arr2 = array("b" => 2.2, "c" => 3.3); echo "-- Float values --\n"; var_dump( array_merge_recursive($arr1, $arr2) ); // string values $arr1 = array("a" => "hello", "b" => "world"); $arr2 = array("b" => "world", "c" => "string"); echo "-- String values --\n"; var_dump( array_merge_recursive($arr1, $arr2) ); // boolean values $arr1 = array("a" => true, "b" => false); $arr2 = array("b" => false); echo "-- Boolean values --\n"; var_dump( array_merge_recursive($arr1, $arr2) ); // null values $arr1 = array( "a" => NULL); $arr2 = array( "a" => NULL); echo "-- Null values --\n"; var_dump( array_merge_recursive($arr1, $arr2) ); echo "Done"; ?> --EXPECTF-- *** Testing array_merge_recursive() : arrays with common key and value *** -- Integer values -- array(3) { ["a"]=> int(1) ["b"]=> array(2) { [0]=> int(2) [1]=> int(2) } ["c"]=> int(4) } -- Float values -- array(3) { ["a"]=> float(1.1) ["b"]=> array(2) { [0]=> float(2.2) [1]=> float(2.2) } ["c"]=> float(3.3) } -- String values -- array(3) { ["a"]=> string(5) "hello" ["b"]=> array(2) { [0]=> string(5) "world" [1]=> string(5) "world" } ["c"]=> string(6) "string" } -- Boolean values -- array(2) { ["a"]=> bool(true) ["b"]=> array(2) { [0]=> bool(false) [1]=> bool(false) } } -- Null values -- array(1) { ["a"]=> array(2) { [0]=> NULL [1]=> NULL } } Done