mirror of
https://github.com/php/php-src.git
synced 2024-09-23 19:07:26 +00:00
64 lines
1.6 KiB
PHP
64 lines
1.6 KiB
PHP
--TEST--
|
|
Test key() function : usage variations
|
|
--FILE--
|
|
<?php
|
|
/* Prototype : mixed key(array $array_arg)
|
|
* Description: Return the key of the element currently pointed to by the internal array pointer
|
|
* Source code: ext/standard/array.c
|
|
*/
|
|
|
|
/*
|
|
* Test how key() behaves with muti-dimensional and recursive arrays
|
|
*/
|
|
|
|
echo "*** Testing key() : usage variations ***\n";
|
|
|
|
echo "\n-- Two Dimensional Array --\n";
|
|
$multi_array = array ('zero', array (1, 2, 3), 'two');
|
|
echo "Initial Position: ";
|
|
var_dump(key($multi_array));
|
|
|
|
echo "Next Position: ";
|
|
next($multi_array);
|
|
var_dump(key($multi_array));
|
|
|
|
echo "End Position: ";
|
|
end($multi_array);
|
|
var_dump(key($multi_array));
|
|
|
|
echo "\n-- Access an Array Within an Array --\n";
|
|
//accessing an array within an array
|
|
echo "Initial Position: ";
|
|
var_dump(key($multi_array[1]));
|
|
|
|
echo "\n-- Recursive, Multidimensional Array --\n";
|
|
//create a recursive array
|
|
$multi_array[] = &$multi_array;
|
|
|
|
//See where internal pointer is after adding more elements
|
|
echo "Current Position: ";
|
|
var_dump(key($multi_array));
|
|
|
|
//see if internal pointer is in same position as referenced array
|
|
var_dump(key($multi_array[3][3][3]));
|
|
// see if internal pointer is in the same position from when accessing this inner array
|
|
var_dump(key($multi_array[3][3][3][1]));
|
|
?>
|
|
===DONE===
|
|
--EXPECTF--
|
|
*** Testing key() : usage variations ***
|
|
|
|
-- Two Dimensional Array --
|
|
Initial Position: int(0)
|
|
Next Position: int(1)
|
|
End Position: int(2)
|
|
|
|
-- Access an Array Within an Array --
|
|
Initial Position: int(0)
|
|
|
|
-- Recursive, Multidimensional Array --
|
|
Current Position: int(2)
|
|
int(2)
|
|
int(0)
|
|
===DONE===
|