Annotation of embedaddon/php/ext/standard/tests/array/key_variation3.phpt, revision 1.1.1.1
1.1 misho 1: --TEST--
2: Test key() function : usage variations
3: --FILE--
4: <?php
5: /* Prototype : mixed key(array $array_arg)
6: * Description: Return the key of the element currently pointed to by the internal array pointer
7: * Source code: ext/standard/array.c
8: */
9:
10: /*
11: * Test how the internal pointer is affected when two variables are referenced to each other
12: */
13:
14: echo "*** Testing key() : usage variations ***\n";
15:
16: $array1 = array ('zero', 'one', 'two');
17:
18: echo "\n-- Initial position of internal pointer --\n";
19: var_dump(key($array1));
20:
21: // Test that when two variables are referenced to one another
22: // the internal pointer is the same for both
23: $array2 = &$array1;
24:
25: next($array1);
26:
27: echo "\n-- Position after calling next() --\n";
28: echo "\$array1: ";
29: var_dump(key($array1));
30: echo "\$array2: ";
31: var_dump(key($array2));
32: ?>
33: ===DONE===
34: --EXPECTF--
35: *** Testing key() : usage variations ***
36:
37: -- Initial position of internal pointer --
38: int(0)
39:
40: -- Position after calling next() --
41: $array1: int(1)
42: $array2: int(1)
43: ===DONE===
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