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- --TEST--
- Test array_reverse() function : usage variations - assoc. array with diff. value for 'array' argument
- --INI--
- precision=12
- --FILE--
- <?php
- /* Prototype : array array_reverse(array $array [, bool $preserve_keys])
- * Description: Return input as a new array with the order of the entries reversed
- * Source code: ext/standard/array.c
- */
- /*
- * Testing the functionality of array_reverse() by giving associative arrays with different
- * values for $array argument
- */
- echo "*** Testing array_reverse() : usage variations ***\n";
- //get an unset variable
- $unset_var = 10;
- unset ($unset_var);
- //get a resource variable
- $fp = fopen(__FILE__, "r");
- //get a class
- class classA
- {
- public function __toString(){
- return "Class A object";
- }
- }
- // get a heredoc string
- $heredoc = <<<EOT
- Hello world
- EOT;
- // initializing the array
- $arrays = array (
- // empty array
- /*1*/ array(),
- // arrays with integer values
- array('0' => 0),
- array("1" => 1),
- array("one" => 1, 'two' => 2, "three" => 3, 4 => 4),
-
- // arrays with float values
- /*5*/ array("float" => 2.3333),
- array("f1" => 1.2, 'f2' => 3.33, 3 => 4.89999922839999, 'f4' => 33333333.333333),
-
- // arrays with string values
- array(111 => "\tHello", "red" => "col\tor", 2 => "\v\fworld", 3.3 => "pen\n"),
- /*8*/ array(111 => '\tHello', "red" => 'col\tor', 2 => '\v\fworld', 3.3 => 'pen\n'),
- array(1 => "hello", "heredoc" => $heredoc),
- // array with object, unset variable and resource variable
- array(11 => new classA(), "unset" => @$unset_var, "resource" => $fp),
- // array with mixed values
- /*11*/ array(1 => 'hello', 2 => new classA(), 222 => "fruit", 'resource' => $fp, "int" => 133, "float" => 444.432, "unset" => @$unset_var, "heredoc" => $heredoc)
- );
- // loop through the various elements of $arrays to test array_reverse()
- $iterator = 1;
- foreach($arrays as $array) {
- echo "-- Iteration $iterator --\n";
- // with default argument
- echo "- default argument -\n";
- var_dump( array_reverse($array) );
- // with $preserve_keys argument
- echo "- \$preserve keys = true -\n";
- var_dump( array_reverse($array, true) );
- echo "- \$preserve_keys = false -\n";
- var_dump( array_reverse($array, false) );
- $iterator++;
- };
- // close the file resource used
- fclose($fp);
- echo "Done";
- ?>
- --EXPECTF--
- *** Testing array_reverse() : usage variations ***
- -- Iteration 1 --
- - default argument -
- array(0) {
- }
- - $preserve keys = true -
- array(0) {
- }
- - $preserve_keys = false -
- array(0) {
- }
- -- Iteration 2 --
- - default argument -
- array(1) {
- [0]=>
- int(0)
- }
- - $preserve keys = true -
- array(1) {
- [0]=>
- int(0)
- }
- - $preserve_keys = false -
- array(1) {
- [0]=>
- int(0)
- }
- -- Iteration 3 --
- - default argument -
- array(1) {
- [0]=>
- int(1)
- }
- - $preserve keys = true -
- array(1) {
- [1]=>
- int(1)
- }
- - $preserve_keys = false -
- array(1) {
- [0]=>
- int(1)
- }
- -- Iteration 4 --
- - default argument -
- array(4) {
- [0]=>
- int(4)
- ["three"]=>
- int(3)
- ["two"]=>
- int(2)
- ["one"]=>
- int(1)
- }
- - $preserve keys = true -
- array(4) {
- [4]=>
- int(4)
- ["three"]=>
- int(3)
- ["two"]=>
- int(2)
- ["one"]=>
- int(1)
- }
- - $preserve_keys = false -
- array(4) {
- [0]=>
- int(4)
- ["three"]=>
- int(3)
- ["two"]=>
- int(2)
- ["one"]=>
- int(1)
- }
- -- Iteration 5 --
- - default argument -
- array(1) {
- ["float"]=>
- float(2.3333)
- }
- - $preserve keys = true -
- array(1) {
- ["float"]=>
- float(2.3333)
- }
- - $preserve_keys = false -
- array(1) {
- ["float"]=>
- float(2.3333)
- }
- -- Iteration 6 --
- - default argument -
- array(4) {
- ["f4"]=>
- float(33333333.3333)
- [0]=>
- float(4.8999992284)
- ["f2"]=>
- float(3.33)
- ["f1"]=>
- float(1.2)
- }
- - $preserve keys = true -
- array(4) {
- ["f4"]=>
- float(33333333.3333)
- [3]=>
- float(4.8999992284)
- ["f2"]=>
- float(3.33)
- ["f1"]=>
- float(1.2)
- }
- - $preserve_keys = false -
- array(4) {
- ["f4"]=>
- float(33333333.3333)
- [0]=>
- float(4.8999992284)
- ["f2"]=>
- float(3.33)
- ["f1"]=>
- float(1.2)
- }
- -- Iteration 7 --
- - default argument -
- array(4) {
- [0]=>
- string(4) "pen
- "
- [1]=>
- string(7) "world"
- ["red"]=>
- string(6) "col or"
- [2]=>
- string(6) " Hello"
- }
- - $preserve keys = true -
- array(4) {
- [3]=>
- string(4) "pen
- "
- [2]=>
- string(7) "world"
- ["red"]=>
- string(6) "col or"
- [111]=>
- string(6) " Hello"
- }
- - $preserve_keys = false -
- array(4) {
- [0]=>
- string(4) "pen
- "
- [1]=>
- string(7) "world"
- ["red"]=>
- string(6) "col or"
- [2]=>
- string(6) " Hello"
- }
- -- Iteration 8 --
- - default argument -
- array(4) {
- [0]=>
- string(5) "pen\n"
- [1]=>
- string(9) "\v\fworld"
- ["red"]=>
- string(7) "col\tor"
- [2]=>
- string(7) "\tHello"
- }
- - $preserve keys = true -
- array(4) {
- [3]=>
- string(5) "pen\n"
- [2]=>
- string(9) "\v\fworld"
- ["red"]=>
- string(7) "col\tor"
- [111]=>
- string(7) "\tHello"
- }
- - $preserve_keys = false -
- array(4) {
- [0]=>
- string(5) "pen\n"
- [1]=>
- string(9) "\v\fworld"
- ["red"]=>
- string(7) "col\tor"
- [2]=>
- string(7) "\tHello"
- }
- -- Iteration 9 --
- - default argument -
- array(2) {
- ["heredoc"]=>
- string(11) "Hello world"
- [0]=>
- string(5) "hello"
- }
- - $preserve keys = true -
- array(2) {
- ["heredoc"]=>
- string(11) "Hello world"
- [1]=>
- string(5) "hello"
- }
- - $preserve_keys = false -
- array(2) {
- ["heredoc"]=>
- string(11) "Hello world"
- [0]=>
- string(5) "hello"
- }
- -- Iteration 10 --
- - default argument -
- array(3) {
- ["resource"]=>
- resource(%d) of type (stream)
- ["unset"]=>
- NULL
- [0]=>
- object(classA)#%d (0) {
- }
- }
- - $preserve keys = true -
- array(3) {
- ["resource"]=>
- resource(%d) of type (stream)
- ["unset"]=>
- NULL
- [11]=>
- object(classA)#%d (0) {
- }
- }
- - $preserve_keys = false -
- array(3) {
- ["resource"]=>
- resource(%d) of type (stream)
- ["unset"]=>
- NULL
- [0]=>
- object(classA)#%d (0) {
- }
- }
- -- Iteration 11 --
- - default argument -
- array(8) {
- ["heredoc"]=>
- string(11) "Hello world"
- ["unset"]=>
- NULL
- ["float"]=>
- float(444.432)
- ["int"]=>
- int(133)
- ["resource"]=>
- resource(%d) of type (stream)
- [0]=>
- string(5) "fruit"
- [1]=>
- object(classA)#%d (0) {
- }
- [2]=>
- string(5) "hello"
- }
- - $preserve keys = true -
- array(8) {
- ["heredoc"]=>
- string(11) "Hello world"
- ["unset"]=>
- NULL
- ["float"]=>
- float(444.432)
- ["int"]=>
- int(133)
- ["resource"]=>
- resource(%d) of type (stream)
- [222]=>
- string(5) "fruit"
- [2]=>
- object(classA)#%d (0) {
- }
- [1]=>
- string(5) "hello"
- }
- - $preserve_keys = false -
- array(8) {
- ["heredoc"]=>
- string(11) "Hello world"
- ["unset"]=>
- NULL
- ["float"]=>
- float(444.432)
- ["int"]=>
- int(133)
- ["resource"]=>
- resource(%d) of type (stream)
- [0]=>
- string(5) "fruit"
- [1]=>
- object(classA)#%d (0) {
- }
- [2]=>
- string(5) "hello"
- }
- Done
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