--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - Pass different data types as $input arg
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Pass different data types as $input argument to test behaviour of array_change_key_case()
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+// get a class
+class classA
+{
+ public function __toString() {
+ return "Class A object";
+ }
+}
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// unexpected values to be passed to $input argument
+$inputs = array(
+
+ // int data
+/*1*/ 0,
+ 1,
+ 12345,
+ -2345,
+
+ // float data
+/*5*/ 10.5,
+ -10.5,
+ 12.3456789000e10,
+ 12.3456789000E-10,
+ .5,
+
+ // null data
+/*10*/ NULL,
+ null,
+
+ // boolean data
+/*12*/ true,
+ false,
+ TRUE,
+ FALSE,
+
+ // empty data
+/*16*/ "",
+ '',
+ array(),
+
+ // string data
+/*19*/ "string",
+ 'string',
+ $heredoc,
+
+ // object data
+/*22*/ new classA(),
+
+ // undefined data
+/*23*/ @$undefined_var,
+
+ // unset data
+/*24*/ @$unset_var,
+
+ // resource variable
+/*25*/ $fp
+);
+
+// loop through each element of $inputs to check the behavior of array_change_key_case()
+$iterator = 1;
+foreach($inputs as $input) {
+ echo "\n-- Iteration $iterator --\n";
+ var_dump( array_change_key_case($input) );
+ $iterator++;
+};
+
+fclose($fp);
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- Iteration 1 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 2 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 3 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 4 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 5 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 6 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 7 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 8 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 9 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 10 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 11 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 12 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 13 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 14 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 15 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 16 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 17 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 18 --
+array(0) {
+}
+
+-- Iteration 19 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 20 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 21 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 22 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 23 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 24 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+
+-- Iteration 25 --
+
+Warning: array_change_key_case(): The argument should be an array in %s on line %d
+bool(false)
+Done
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - Pass different data types as $case arg
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Pass different data types as $case argument to array_change_key_case() to test behaviour
+ * Where possible, CASE_UPPER has been entered as a string value
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+// Initialise function arguments not being substituted
+$array = array ('one' => 1, 'TWO' => 2, 'Three' => 3);
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+// heredoc string
+$heredoc = <<<EOT
+CASE_UPPER
+EOT;
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// unexpected values to be passed to $case argument
+$inputs = array(
+
+ // int data
+/*1*/ 0,
+ 1,
+ 12345,
+ -2345,
+
+ // float data
+/*5*/ 10.5,
+ -10.5,
+ 12.3456789000e10,
+ 12.3456789000E-10,
+ .5,
+
+ // null data
+/*10*/ NULL,
+ null,
+
+ // boolean data
+/*12*/ true,
+ false,
+ TRUE,
+ FALSE,
+
+ // empty data
+/*16*/ "",
+ '',
+ array(),
+
+ // string data
+/*19*/ "CASE_UPPER",
+ 'CASE_UPPER',
+ $heredoc,
+
+ // undefined data
+/*22*/ @$undefined_var,
+
+ // unset data
+/*23*/ @$unset_var,
+);
+
+// loop through each element of $inputs to check the behavior of array_change_key_case()
+$iterator = 1;
+foreach($inputs as $input) {
+ echo "\n-- Iteration $iterator --\n";
+ var_dump( array_change_key_case($array, $input) );
+ $iterator++;
+};
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- Iteration 1 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 2 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 3 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 4 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 5 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 6 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 7 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 8 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 9 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 10 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 11 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 12 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 13 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 14 --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+
+-- Iteration 15 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 16 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 17 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 18 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 19 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 20 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 21 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 22 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+
+-- Iteration 23 --
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+}
+Done
\ No newline at end of file
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - different data types as keys
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Pass arrays with different data types as keys to array_change_key_case()
+ * to test conversion
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// arrays of different data types to be passed to $input argument
+$inputs = array(
+
+ // int data
+/*1*/ 'int' => array(
+ 0 => 'zero',
+ 1 => 'one',
+ 12345 => 'positive',
+ -2345 => 'negative',
+ ),
+
+ // float data
+/*2*/ 'float' => array(
+ 10.5 => 'positive',
+ -10.5 => 'negative',
+ .5 => 'half',
+ ),
+
+ 'extreme floats' => array(
+ 12.3456789000e6 => 'large',
+ 12.3456789000E-10 => 'small',
+ ),
+
+ // null data
+/*3*/ 'null uppercase' => array(
+ NULL => 'null 1',
+ ),
+ 'null lowercase' => array(
+ null => 'null 2',
+ ),
+
+ // boolean data
+/*4*/ 'bool lowercase' => array(
+ true => 'lowert',
+ false => 'lowerf',
+ ),
+ 'bool uppercase' => array(
+ TRUE => 'uppert',
+ FALSE => 'upperf',
+ ),
+
+ // empty data
+/*5*/ 'empty double quotes' => array(
+ "" => 'emptyd',
+ ),
+ 'empty single quotes' => array(
+ '' => 'emptys',
+ ),
+
+ // string data
+/*6*/ 'string' => array(
+ "stringd" => 'stringd',
+ 'strings' => 'strings',
+ $heredoc => 'stringh',
+ ),
+
+ // undefined data
+/*8*/ 'undefined' => array(
+ @$undefined_var => 'undefined',
+ ),
+
+ // unset data
+/*9*/ 'unset' => array(
+ @$unset_var => 'unset',
+ ),
+);
+
+// loop through each sub-array of $inputs to check the behavior of array_change_key_case()
+$iterator = 1;
+foreach($inputs as $key => $input) {
+ echo "\n-- Iteration $iterator : $key data --\n";
+ var_dump( array_change_key_case($input, CASE_UPPER) );
+ $iterator++;
+};
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- Iteration 1 : int data --
+array(4) {
+ [0]=>
+ string(4) "zero"
+ [1]=>
+ string(3) "one"
+ [12345]=>
+ string(8) "positive"
+ [-2345]=>
+ string(8) "negative"
+}
+
+-- Iteration 2 : float data --
+array(3) {
+ [10]=>
+ string(8) "positive"
+ [-10]=>
+ string(8) "negative"
+ [0]=>
+ string(4) "half"
+}
+
+-- Iteration 3 : extreme floats data --
+array(2) {
+ [12345678]=>
+ string(5) "large"
+ [0]=>
+ string(5) "small"
+}
+
+-- Iteration 4 : null uppercase data --
+array(1) {
+ [""]=>
+ string(6) "null 1"
+}
+
+-- Iteration 5 : null lowercase data --
+array(1) {
+ [""]=>
+ string(6) "null 2"
+}
+
+-- Iteration 6 : bool lowercase data --
+array(2) {
+ [1]=>
+ string(6) "lowert"
+ [0]=>
+ string(6) "lowerf"
+}
+
+-- Iteration 7 : bool uppercase data --
+array(2) {
+ [1]=>
+ string(6) "uppert"
+ [0]=>
+ string(6) "upperf"
+}
+
+-- Iteration 8 : empty double quotes data --
+array(1) {
+ [""]=>
+ string(6) "emptyd"
+}
+
+-- Iteration 9 : empty single quotes data --
+array(1) {
+ [""]=>
+ string(6) "emptys"
+}
+
+-- Iteration 10 : string data --
+array(3) {
+ ["STRINGD"]=>
+ string(7) "stringd"
+ ["STRINGS"]=>
+ string(7) "strings"
+ ["HELLO WORLD"]=>
+ string(7) "stringh"
+}
+
+-- Iteration 11 : undefined data --
+array(1) {
+ [""]=>
+ string(9) "undefined"
+}
+
+-- Iteration 12 : unset data --
+array(1) {
+ [""]=>
+ string(5) "unset"
+}
+Done
\ No newline at end of file
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - different int values for $case
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Pass different integer values as $case argument to array_change_key_case() to test behaviour
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+$input = array('One' => 'un', 'TWO' => 'deux', 'three' => 'trois');
+for ($i = -5; $i <=5; $i += 1){
+ echo "\n-- \$sort argument is $i --\n";
+ $temp = $input;
+ var_dump(array_change_key_case($temp, $i));
+}
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- $sort argument is -5 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is -4 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is -3 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is -2 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is -1 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is 0 --
+array(3) {
+ ["one"]=>
+ string(2) "un"
+ ["two"]=>
+ string(4) "deux"
+ ["three"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is 1 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is 2 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is 3 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is 4 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+
+-- $sort argument is 5 --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+Done
\ No newline at end of file
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - position of internal pointer
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Check the position of the internal array pointer after calling the function
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+$input = array ('one' => 'un', 'two' => 'deux', 'three' => 'trois');
+
+echo "\n-- Call array_change_key_case() --\n";
+var_dump($result = array_change_key_case($input, CASE_UPPER));
+
+echo "-- Position of Internal Pointer in Result: --\n";
+echo key($result) . " => " . current($result) . "\n";
+echo "\n-- Position of Internal Pointer in Original Array: --\n";
+echo key($input) . " => " . current ($input) . "\n";
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- Call array_change_key_case() --
+array(3) {
+ ["ONE"]=>
+ string(2) "un"
+ ["TWO"]=>
+ string(4) "deux"
+ ["THREE"]=>
+ string(5) "trois"
+}
+-- Position of Internal Pointer in Result: --
+ONE => un
+
+-- Position of Internal Pointer in Original Array: --
+one => un
+Done
\ No newline at end of file
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - multidimensional arrays
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test how array_change_key_case() converts keys in multi-dimensional arrays
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+$input = array('English' => array('one' => 1, 'two' => 2, 'three' => 3),
+ 'French' => array('un' => 1, 'deux' => 2, 'trois' => 3),
+ 'German' => array('eins' => 1, 'zwei' => 2, 'drei' => 3));
+
+echo "\n-- Pass a two-dimensional array as \$input argument --\n";
+var_dump(array_change_key_case($input, CASE_UPPER));
+
+echo "\n-- Pass a sub-arry as \$input argument --\n";
+var_dump(array_change_key_case($input['English'], CASE_UPPER));
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- Pass a two-dimensional array as $input argument --
+array(3) {
+ ["ENGLISH"]=>
+ array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["three"]=>
+ int(3)
+ }
+ ["FRENCH"]=>
+ array(3) {
+ ["un"]=>
+ int(1)
+ ["deux"]=>
+ int(2)
+ ["trois"]=>
+ int(3)
+ }
+ ["GERMAN"]=>
+ array(3) {
+ ["eins"]=>
+ int(1)
+ ["zwei"]=>
+ int(2)
+ ["drei"]=>
+ int(3)
+ }
+}
+
+-- Pass a sub-arry as $input argument --
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["THREE"]=>
+ int(3)
+}
+Done
\ No newline at end of file
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - referenced variables
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test array_change_key_case() when:
+ * 1. Passed a referenced variable
+ * 2. Passed an argument by reference
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+$input = array('one' => 1, 'two' => 2, 'ABC' => 'xyz');
+
+echo "\n-- \$input argument is a reference to array --\n";
+$new_input = &$input;
+echo "Result:\n";
+var_dump(array_change_key_case($new_input, CASE_UPPER));
+echo "Original:\n";
+var_dump($input);
+echo "Referenced:\n";
+var_dump($new_input);
+
+echo "\n-- \$input is an array passed by reference --\n";
+echo "Result:\n";
+var_dump(array_change_key_case(&$input, CASE_UPPER));
+echo "Original:\n";
+var_dump($input);
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- $input argument is a reference to array --
+Result:
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["ABC"]=>
+ string(3) "xyz"
+}
+Original:
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["ABC"]=>
+ string(3) "xyz"
+}
+Referenced:
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["ABC"]=>
+ string(3) "xyz"
+}
+
+-- $input is an array passed by reference --
+Result:
+array(3) {
+ ["ONE"]=>
+ int(1)
+ ["TWO"]=>
+ int(2)
+ ["ABC"]=>
+ string(3) "xyz"
+}
+Original:
+array(3) {
+ ["one"]=>
+ int(1)
+ ["two"]=>
+ int(2)
+ ["ABC"]=>
+ string(3) "xyz"
+}
+Done
\ No newline at end of file
--- /dev/null
+--TEST--
+Test array_change_key_case() function : usage variations - Different strings as keys
+--FILE--
+<?php
+/* Prototype : array array_change_key_case(array $input [, int $case])
+ * Description: Retuns an array with all string keys lowercased [or uppercased]
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test how array_change_key_case() behaves with different strings
+ */
+
+echo "*** Testing array_change_key_case() : usage variations ***\n";
+
+$inputs = array (
+ // group of escape sequences
+ array(null => 1, NULL => 2, "\a" => 3, "\cx" => 4, "\e" => 5, "\f" => 6, "\n" => 7, "\t" => 8, "\xhh" => 9, "\ddd" => 10, "\v" => 11),
+
+ // array contains combination of capital/small letters
+ array("lemoN" => 1, "Orange" => 2, "banana" => 3, "apple" => 4, "Test" => 5, "TTTT" => 6, "ttt" => 7, "ww" => 8, "x" => 9, "X" => 10, "oraNGe" => 11, "BANANA" => 12)
+);
+
+foreach($inputs as $input) {
+ echo "\n-- \$case = default --\n";
+ var_dump(array_change_key_case($input));
+ echo "-- \$case = upper --\n";
+ var_dump(array_change_key_case($input, CASE_UPPER));
+}
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_change_key_case() : usage variations ***
+
+-- $case = default --
+array(10) {
+ [""]=>
+ int(2)
+ ["\a"]=>
+ int(3)
+ ["\cx"]=>
+ int(4)
+ ["\e"]=>
+ int(5)
+ ["\f"]=>
+ int(6)
+ ["
+"]=>
+ int(7)
+ [" "]=>
+ int(8)
+ ["\xhh"]=>
+ int(9)
+ ["\ddd"]=>
+ int(10)
+ ["\v"]=>
+ int(11)
+}
+-- $case = upper --
+array(10) {
+ [""]=>
+ int(2)
+ ["\A"]=>
+ int(3)
+ ["\CX"]=>
+ int(4)
+ ["\E"]=>
+ int(5)
+ ["\f"]=>
+ int(6)
+ ["
+"]=>
+ int(7)
+ [" "]=>
+ int(8)
+ ["\XHH"]=>
+ int(9)
+ ["\DDD"]=>
+ int(10)
+ ["\v"]=>
+ int(11)
+}
+
+-- $case = default --
+array(9) {
+ ["lemon"]=>
+ int(1)
+ ["orange"]=>
+ int(11)
+ ["banana"]=>
+ int(12)
+ ["apple"]=>
+ int(4)
+ ["test"]=>
+ int(5)
+ ["tttt"]=>
+ int(6)
+ ["ttt"]=>
+ int(7)
+ ["ww"]=>
+ int(8)
+ ["x"]=>
+ int(10)
+}
+-- $case = upper --
+array(9) {
+ ["LEMON"]=>
+ int(1)
+ ["ORANGE"]=>
+ int(11)
+ ["BANANA"]=>
+ int(12)
+ ["APPLE"]=>
+ int(4)
+ ["TEST"]=>
+ int(5)
+ ["TTTT"]=>
+ int(6)
+ ["TTT"]=>
+ int(7)
+ ["WW"]=>
+ int(8)
+ ["X"]=>
+ int(10)
+}
+Done
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projects / php / commitdiff