array_reverse_variation3.phpt [plain text]
--TEST--
Test array_reverse() function : usage variations - different array values for 'array' argument
--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
* different array 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;
$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_reverse()
$iterator = 1;
foreach($arrays as $array) {
echo "-- Iteration $iterator --\n";
// with default argument
echo "- with default argument -\n";
var_dump( array_reverse($array) );
// with all possible arguments
echo "- with \$preserve keys = true -\n";
var_dump( array_reverse($array, true) );
echo "- with \$preserve_keys = false -\n";
var_dump( array_reverse($array, false) );
$iterator++;
};
// close the file resource used
fclose($fp);
echo "Done";
?>
--EXPECTF--
*** Testing array_reverse() : usage variations ***
-- Iteration 1 --
- with default argument -
array(2) {
[0]=>
int(2)
[1]=>
int(1)
}
- with $preserve keys = true -
array(2) {
[1]=>
int(2)
[0]=>
int(1)
}
- with $preserve_keys = false -
array(2) {
[0]=>
int(2)
[1]=>
int(1)
}
-- Iteration 2 --
- with default argument -
array(2) {
[0]=>
float(2.2)
[1]=>
float(1.1)
}
- with $preserve keys = true -
array(2) {
[1]=>
float(2.2)
[0]=>
float(1.1)
}
- with $preserve_keys = false -
array(2) {
[0]=>
float(2.2)
[1]=>
float(1.1)
}
-- Iteration 3 --
- with default argument -
array(2) {
[0]=>
array(1) {
[0]=>
int(1)
}
[1]=>
array(1) {
[0]=>
int(2)
}
}
- with $preserve keys = true -
array(2) {
[1]=>
array(1) {
[0]=>
int(1)
}
[0]=>
array(1) {
[0]=>
int(2)
}
}
- with $preserve_keys = false -
array(2) {
[0]=>
array(1) {
[0]=>
int(1)
}
[1]=>
array(1) {
[0]=>
int(2)
}
}
-- Iteration 4 --
- with default argument -
array(2) {
[0]=>
bool(true)
[1]=>
bool(false)
}
- with $preserve keys = true -
array(2) {
[1]=>
bool(true)
[0]=>
bool(false)
}
- with $preserve_keys = false -
array(2) {
[0]=>
bool(true)
[1]=>
bool(false)
}
-- Iteration 5 --
- with default argument -
array(0) {
}
- with $preserve keys = true -
array(0) {
}
- with $preserve_keys = false -
array(0) {
}
-- Iteration 6 --
- with default argument -
array(1) {
[0]=>
NULL
}
- with $preserve keys = true -
array(1) {
[0]=>
NULL
}
- with $preserve_keys = false -
array(1) {
[0]=>
NULL
}
-- Iteration 7 --
- with default argument -
array(6) {
[0]=>
string(5) "ccccc"
[1]=>
string(1) "c"
[2]=>
string(4) "bbbb"
[3]=>
string(1) "b"
[4]=>
string(4) "aaaa"
[5]=>
string(1) "a"
}
- with $preserve keys = true -
array(6) {
[5]=>
string(5) "ccccc"
[4]=>
string(1) "c"
[3]=>
string(4) "bbbb"
[2]=>
string(1) "b"
[1]=>
string(4) "aaaa"
[0]=>
string(1) "a"
}
- with $preserve_keys = false -
array(6) {
[0]=>
string(5) "ccccc"
[1]=>
string(1) "c"
[2]=>
string(4) "bbbb"
[3]=>
string(1) "b"
[4]=>
string(4) "aaaa"
[5]=>
string(1) "a"
}
-- Iteration 8 --
- with default argument -
array(3) {
[0]=>
string(5) "three"
[1]=>
string(3) "two"
[2]=>
string(3) "one"
}
- with $preserve keys = true -
array(3) {
[3]=>
string(5) "three"
[2]=>
string(3) "two"
[1]=>
string(3) "one"
}
- with $preserve_keys = false -
array(3) {
[0]=>
string(5) "three"
[1]=>
string(3) "two"
[2]=>
string(3) "one"
}
-- Iteration 9 --
- with default argument -
array(3) {
["three"]=>
int(3)
["two"]=>
int(2)
["one"]=>
int(1)
}
- with $preserve keys = true -
array(3) {
["three"]=>
int(3)
["two"]=>
int(2)
["one"]=>
int(1)
}
- with $preserve_keys = false -
array(3) {
["three"]=>
int(3)
["two"]=>
int(2)
["one"]=>
int(1)
}
-- Iteration 10 --
- with default argument -
array(4) {
[0]=>
int(30)
[1]=>
int(40)
[2]=>
int(20)
[3]=>
int(10)
}
- with $preserve keys = true -
array(4) {
[3]=>
int(30)
[4]=>
int(40)
[2]=>
int(20)
[1]=>
int(10)
}
- with $preserve_keys = false -
array(4) {
[0]=>
int(30)
[1]=>
int(40)
[2]=>
int(20)
[3]=>
int(10)
}
-- Iteration 11 --
- with default argument -
array(3) {
["three"]=>
string(6) "thirty"
["two"]=>
string(6) "twenty"
["one"]=>
string(3) "ten"
}
- with $preserve keys = true -
array(3) {
["three"]=>
string(6) "thirty"
["two"]=>
string(6) "twenty"
["one"]=>
string(3) "ten"
}
- with $preserve_keys = false -
array(3) {
["three"]=>
string(6) "thirty"
["two"]=>
string(6) "twenty"
["one"]=>
string(3) "ten"
}
-- Iteration 12 --
- with default argument -
array(3) {
[0]=>
string(4) "four"
[1]=>
string(3) "two"
["one"]=>
int(1)
}
- with $preserve keys = true -
array(3) {
[4]=>
string(4) "four"
[2]=>
string(3) "two"
["one"]=>
int(1)
}
- with $preserve_keys = false -
array(3) {
[0]=>
string(4) "four"
[1]=>
string(3) "two"
["one"]=>
int(1)
}
-- Iteration 13 --
- with default argument -
array(3) {
["null"]=>
NULL
["NULL"]=>
NULL
[""]=>
string(4) "null"
}
- with $preserve keys = true -
array(3) {
["null"]=>
NULL
["NULL"]=>
NULL
[""]=>
string(4) "null"
}
- with $preserve_keys = false -
array(3) {
["null"]=>
NULL
["NULL"]=>
NULL
[""]=>
string(4) "null"
}
-- Iteration 14 --
- with default argument -
array(4) {
["true"]=>
bool(true)
["false"]=>
bool(false)
[0]=>
string(5) "false"
[1]=>
string(4) "true"
}
- with $preserve keys = true -
array(4) {
["true"]=>
bool(true)
["false"]=>
bool(false)
[0]=>
string(5) "false"
[1]=>
string(4) "true"
}
- with $preserve_keys = false -
array(4) {
["true"]=>
bool(true)
["false"]=>
bool(false)
[0]=>
string(5) "false"
[1]=>
string(4) "true"
}
-- Iteration 15 --
- with default argument -
array(3) {
["emptys"]=>
string(0) ""
["emptyd"]=>
string(0) ""
[""]=>
string(6) "emptys"
}
- with $preserve keys = true -
array(3) {
["emptys"]=>
string(0) ""
["emptyd"]=>
string(0) ""
[""]=>
string(6) "emptys"
}
- with $preserve_keys = false -
array(3) {
["emptys"]=>
string(0) ""
["emptyd"]=>
string(0) ""
[""]=>
string(6) "emptys"
}
-- Iteration 16 --
- with default argument -
array(6) {
[0]=>
bool(true)
[1]=>
bool(false)
[2]=>
NULL
[3]=>
NULL
[4]=>
string(0) ""
[5]=>
string(0) ""
}
- with $preserve keys = true -
array(6) {
[6]=>
bool(true)
[5]=>
bool(false)
[4]=>
NULL
[3]=>
NULL
[2]=>
string(0) ""
[1]=>
string(0) ""
}
- with $preserve_keys = false -
array(6) {
[0]=>
bool(true)
[1]=>
bool(false)
[2]=>
NULL
[3]=>
NULL
[4]=>
string(0) ""
[5]=>
string(0) ""
}
-- Iteration 17 --
- with default argument -
array(3) {
[0]=>
int(6)
[1]=>
int(5)
[""]=>
int(4)
}
- with $preserve keys = true -
array(3) {
[1]=>
int(6)
[0]=>
int(5)
[""]=>
int(4)
}
- with $preserve_keys = false -
array(3) {
[0]=>
int(6)
[1]=>
int(5)
[""]=>
int(4)
}
-- Iteration 18 --
- with default argument -
array(3) {
["three"]=>
int(3)
["two"]=>
int(20)
["One"]=>
int(10)
}
- with $preserve keys = true -
array(3) {
["three"]=>
int(3)
["two"]=>
int(20)
["One"]=>
int(10)
}
- with $preserve_keys = false -
array(3) {
["three"]=>
int(3)
["two"]=>
int(20)
["One"]=>
int(10)
}
Done