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- --TEST--
- Test array_unique() function : usage variations - different arrays for 'input' argument
- --FILE--
- <?php
- /* Prototype : array array_unique(array $input)
- * Description: Removes duplicate values from array
- * Source code: ext/standard/array.c
- */
- /*
- * Passing different arrays to $input argument and testing whether
- * array_unique() behaves in an expected way.
- */
- echo "*** Testing array_unique() : Passing different arrays to \$input argument ***\n";
- /* Different heredoc strings passed as argument to arrays */
- // heredoc with blank line
- $blank_line = <<<EOT
- EOT;
- // heredoc with multiline string
- $multiline_string = <<<EOT
- hello world
- The quick brown fox jumped over;
- the lazy dog
- This is a double quoted string
- EOT;
- // heredoc with different whitespaces
- $diff_whitespaces = <<<EOT
- hello\r world\t
- 1111\t\t != 2222\v\v
- heredoc\ndouble quoted string. with\vdifferent\fwhite\vspaces
- EOT;
- // heredoc with quoted strings and numeric values
- $numeric_string = <<<EOT
- 11 < 12. 123 >22
- 'single quoted string'
- "double quoted string"
- 2222 != 1111.\t 0000 = 0000\n
- EOT;
- // arrays passed to $input argument
- $inputs = array (
- /*1*/ array(1, 2, 2, 1), // with default keys and numeric values
- array(1.1, 2.2, 1.1), // with default keys & float values
- array(false, true, false), // with default keys and boolean values
- array(), // empty array
- /*5*/ array(NULL, null), // with NULL
- array("a\v\f", "aaaa\r", "b", "aaaa\r", "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"), // with double quoted strings
- array('a\v\f', 'aaaa\r', 'b', 'aaaa\r', '\[\]\!\@\#\$\%\^\&\*\(\)\{\}'), // with single quoted strings
- array("h1" => $blank_line, "h2" => $multiline_string, "h3" => $diff_whitespaces, $blank_line), // with heredocs
- // associative arrays
- /*9*/ array(1 => "one", 2 => "two", 2 => "two"), // explicit numeric keys, string values
- array("one" => 1, "two" => 2, "1" => 1 ), // string keys & numeric values
- array( 1 => 10, 2 => 20, 4 => 40, 5 => 10), // explicit numeric keys and numeric values
- array( "one" => "ten", "two" => "twenty", "10" => "ten"), // string key/value
- array("one" => 1, 2 => "two", 4 => "four"), //mixed
- // associative array, containing null/empty/boolean values as key/value
- /*14*/ 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),
- /*18*/ array('' => 1, "" => 2, NULL => 3, null => 4, false => 5, true => 6),
- );
- // loop through each sub-array of $inputs to check the behavior of array_unique()
- $iterator = 1;
- foreach($inputs as $input) {
- echo "-- Iteration $iterator --\n";
- var_dump( array_unique($input, SORT_STRING) );
- $iterator++;
- }
-
- echo "Done";
- ?>
- --EXPECTF--
- *** Testing array_unique() : Passing different arrays to $input 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]=>
- bool(false)
- [1]=>
- bool(true)
- }
- -- Iteration 4 --
- array(0) {
- }
- -- Iteration 5 --
- array(1) {
- [0]=>
- NULL
- }
- -- Iteration 6 --
- array(4) {
- [0]=>
- %unicode|string%(3) "a"
- [1]=>
- %unicode|string%(5) "aaaa
"
- [2]=>
- %unicode|string%(1) "b"
- [4]=>
- %unicode|string%(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}"
- }
- -- Iteration 7 --
- array(4) {
- [0]=>
- %unicode|string%(5) "a\v\f"
- [1]=>
- %unicode|string%(6) "aaaa\r"
- [2]=>
- %unicode|string%(1) "b"
- [4]=>
- %unicode|string%(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"
- }
- -- Iteration 8 --
- array(3) {
- [%b|u%"h1"]=>
- %unicode|string%(1) "
- "
- [%b|u%"h2"]=>
- %unicode|string%(88) "hello world
- The quick brown fox jumped over;
- the lazy dog
- This is a double quoted string"
- [%b|u%"h3"]=>
- %unicode|string%(88) "hello
world
- 1111 != 2222
- heredoc
- double quoted string. withdifferentwhitespaces"
- }
- -- Iteration 9 --
- array(2) {
- [1]=>
- %unicode|string%(3) "one"
- [2]=>
- %unicode|string%(3) "two"
- }
- -- Iteration 10 --
- array(2) {
- [%b|u%"one"]=>
- int(1)
- [%b|u%"two"]=>
- int(2)
- }
- -- Iteration 11 --
- array(3) {
- [1]=>
- int(10)
- [2]=>
- int(20)
- [4]=>
- int(40)
- }
- -- Iteration 12 --
- array(2) {
- [%b|u%"one"]=>
- %unicode|string%(3) "ten"
- [%b|u%"two"]=>
- %unicode|string%(6) "twenty"
- }
- -- Iteration 13 --
- array(3) {
- [%b|u%"one"]=>
- int(1)
- [2]=>
- %unicode|string%(3) "two"
- [4]=>
- %unicode|string%(4) "four"
- }
- -- Iteration 14 --
- array(2) {
- [%b|u%""]=>
- %unicode|string%(4) "null"
- [%b|u%"NULL"]=>
- NULL
- }
- -- Iteration 15 --
- array(4) {
- [1]=>
- %unicode|string%(4) "true"
- [0]=>
- %unicode|string%(5) "false"
- [%b|u%"false"]=>
- bool(false)
- [%b|u%"true"]=>
- bool(true)
- }
- -- Iteration 16 --
- array(2) {
- [%b|u%""]=>
- %unicode|string%(6) "emptys"
- [%b|u%"emptyd"]=>
- %unicode|string%(0) ""
- }
- -- Iteration 17 --
- array(2) {
- [1]=>
- %unicode|string%(0) ""
- [6]=>
- bool(true)
- }
- -- Iteration 18 --
- array(3) {
- [%b|u%""]=>
- int(4)
- [0]=>
- int(5)
- [1]=>
- int(6)
- }
- Done
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