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--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 the internal pointer is affected when two variables are referenced to each other
*/
echo "*** Testing key() : usage variations ***\n";
$array1 = array ('zero', 'one', 'two');
echo "\n-- Initial position of internal pointer --\n";
var_dump(key($array1));
// Test that when two variables are referenced to one another
// the internal pointer is the same for both
$array2 = &$array1;
next($array1);
echo "\n-- Position after calling next() --\n";
echo "\$array1: ";
var_dump(key($array1));
echo "\$array2: ";
var_dump(key($array2));
?>
===DONE===
--EXPECTF--
*** Testing key() : usage variations ***
-- Initial position of internal pointer --
int(0)
-- Position after calling next() --
$array1: int(1)
$array2: int(1)
===DONE===