--TEST-- Test array_map() function : usage variations - associative array with different keys --FILE-- "0"), array(1 => "1"), array(1 => "1", 2 => "2", 3 => "3", 4 => "4"), // arrays with float keys /*5*/ array(2.3333 => "float"), array(1.2 => "f1", 3.33 => "f2", 4.89999922839999 => "f3", 33333333.333333 => "f4"), // arrays with string keys array('\tHello' => 111, 're\td' => 'color', '\v\fworld' => 2.2, 'pen\n' => 33), /*8*/ array("\tHello" => 111, "re\td" => "color", "\v\fworld" => 2.2, "pen\n" => 33), array("hello", $heredoc => "string"), // heredoc // array with object, unset variable and resource variable array(new classA() => 11, @$unset_var => "hello", $fp => 'resource'), // array with mixed values /*11*/ array('hello' => 1, new classA() => 2, "fruit" => 2.2, $fp => 'resource', 133 => "int", 444.432 => "float", @$unset_var => "unset", $heredoc => "heredoc") ); // loop through the various elements of $arrays to test array_map() $iterator = 1; foreach($arrays as $arr1) { echo "-- Iteration $iterator --\n"; var_dump( array_map('callback', $arr1) ); $iterator++; } echo "Done"; ?> --EXPECTF-- *** Testing array_map() : associative array with diff. keys for 'arr1' argument *** Warning: Illegal offset type in %s on line %d%d Warning: Illegal offset type in %s on line %d%d Warning: Illegal offset type in %s on line %d%d Warning: Illegal offset type in %s on line %d%d -- Iteration 1 -- array(0) { } -- Iteration 2 -- array(1) { [0]=> string(1) "0" } -- Iteration 3 -- array(1) { [1]=> string(1) "1" } -- Iteration 4 -- array(4) { [1]=> string(1) "1" [2]=> string(1) "2" [3]=> string(1) "3" [4]=> string(1) "4" } -- Iteration 5 -- array(1) { [2]=> string(5) "float" } -- Iteration 6 -- array(4) { [1]=> string(2) "f1" [3]=> string(2) "f2" [4]=> string(2) "f3" [33333333]=> string(2) "f4" } -- Iteration 7 -- array(4) { ["\tHello"]=> int(111) ["re\td"]=> string(5) "color" ["\v\fworld"]=> float(2.2) ["pen\n"]=> int(33) } -- Iteration 8 -- array(4) { [" Hello"]=> int(111) ["re d"]=> string(5) "color" [" world"]=> float(2.2) ["pen "]=> int(33) } -- Iteration 9 -- array(2) { [0]=> string(5) "hello" ["Hello world"]=> string(6) "string" } -- Iteration 10 -- array(1) { [""]=> string(5) "hello" } -- Iteration 11 -- array(6) { ["hello"]=> int(1) ["fruit"]=> float(2.2) [133]=> string(3) "int" [444]=> string(5) "float" [""]=> string(5) "unset" ["Hello world"]=> string(7) "heredoc" } Done