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- --TEST--
- Test array_map() function : usage variations - different arrays for 'arr1' argument
- --FILE--
- <?php
- /* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] )
- * Description: Applies the callback to the elements of the given arrays
- * Source code: ext/standard/array.c
- */
- /*
- * Test array_map() by passing different arrays for $arr1 argument
- */
- echo "*** Testing array_map() : different arrays for 'arr1' argument ***\n";
- function callback($a)
- {
- return ($a);
- }
- // different arrays
- $arrays = array (
- /*1*/ array(1, 2), // array with default keys and numeric values
- array(1.1, 2.2), // array with default keys & float values
- array( array(2), array(1)), // sub arrays
- array(false,true), // array with default keys and boolean values
- array(), // empty array
- array(NULL), // array with NULL
- array("a","aaaa","b","bbbb","c","ccccc"),
- // associative arrays
- /*8*/ array(1 => "one", 2 => "two", 3 => "three"), // explicit numeric keys, string values
- array("one" => 1, "two" => 2, "three" => 3 ), // string keys & numeric values
- array( 1 => 10, 2 => 20, 4 => 40, 3 => 30), // explicit numeric keys and numeric values
- array( "one" => "ten", "two" => "twenty", "three" => "thirty"), // string key/value
- array("one" => 1, 2 => "two", 4 => "four"), //mixed
- // associative array, containing null/empty/boolean values as key/value
- /*13*/ array(NULL => "NULL", null => "null", "NULL" => NULL, "null" => null),
- array(true => "true", false => "false", "false" => false, "true" => true),
- array("" => "emptyd", '' => 'emptys', "emptyd" => "", 'emptys' => ''),
- array(1 => '', 2 => "", 3 => NULL, 4 => null, 5 => false, 6 => true),
- array('' => 1, "" => 2, NULL => 3, null => 4, false => 5, true => 6),
- // array with repetative keys
- /*18*/ array("One" => 1, "two" => 2, "One" => 10, "two" => 20, "three" => 3)
- );
- // 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() : different arrays for 'arr1' argument ***
- -- Iteration 1 --
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- -- Iteration 2 --
- array(2) {
- [0]=>
- float(1.1)
- [1]=>
- float(2.2)
- }
- -- Iteration 3 --
- array(2) {
- [0]=>
- array(1) {
- [0]=>
- int(2)
- }
- [1]=>
- array(1) {
- [0]=>
- int(1)
- }
- }
- -- Iteration 4 --
- array(2) {
- [0]=>
- bool(false)
- [1]=>
- bool(true)
- }
- -- Iteration 5 --
- array(0) {
- }
- -- Iteration 6 --
- array(1) {
- [0]=>
- NULL
- }
- -- Iteration 7 --
- array(6) {
- [0]=>
- string(1) "a"
- [1]=>
- string(4) "aaaa"
- [2]=>
- string(1) "b"
- [3]=>
- string(4) "bbbb"
- [4]=>
- string(1) "c"
- [5]=>
- string(5) "ccccc"
- }
- -- Iteration 8 --
- array(3) {
- [1]=>
- string(3) "one"
- [2]=>
- string(3) "two"
- [3]=>
- string(5) "three"
- }
- -- Iteration 9 --
- array(3) {
- ["one"]=>
- int(1)
- ["two"]=>
- int(2)
- ["three"]=>
- int(3)
- }
- -- Iteration 10 --
- array(4) {
- [1]=>
- int(10)
- [2]=>
- int(20)
- [4]=>
- int(40)
- [3]=>
- int(30)
- }
- -- Iteration 11 --
- array(3) {
- ["one"]=>
- string(3) "ten"
- ["two"]=>
- string(6) "twenty"
- ["three"]=>
- string(6) "thirty"
- }
- -- Iteration 12 --
- array(3) {
- ["one"]=>
- int(1)
- [2]=>
- string(3) "two"
- [4]=>
- string(4) "four"
- }
- -- Iteration 13 --
- array(3) {
- [""]=>
- string(4) "null"
- ["NULL"]=>
- NULL
- ["null"]=>
- NULL
- }
- -- Iteration 14 --
- array(4) {
- [1]=>
- string(4) "true"
- [0]=>
- string(5) "false"
- ["false"]=>
- bool(false)
- ["true"]=>
- bool(true)
- }
- -- Iteration 15 --
- array(3) {
- [""]=>
- string(6) "emptys"
- ["emptyd"]=>
- string(0) ""
- ["emptys"]=>
- string(0) ""
- }
- -- Iteration 16 --
- array(6) {
- [1]=>
- string(0) ""
- [2]=>
- string(0) ""
- [3]=>
- NULL
- [4]=>
- NULL
- [5]=>
- bool(false)
- [6]=>
- bool(true)
- }
- -- Iteration 17 --
- array(3) {
- [""]=>
- int(4)
- [0]=>
- int(5)
- [1]=>
- int(6)
- }
- -- Iteration 18 --
- array(3) {
- ["One"]=>
- int(10)
- ["two"]=>
- int(20)
- ["three"]=>
- int(3)
- }
- Done
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