xref: /PHP-8.3/ext/spl/tests/dllist_013.phpt (revision 044de836)
1--TEST--
2SPL: DoublyLinkedList: insert operations
3--FILE--
4<?php
5$dll = new SplDoublyLinkedList();
6// errors
7try {
8    $dll->add(2,5);
9} catch (OutOfRangeException $e) {
10    echo "Exception: ".$e->getMessage()."\n";
11}
12
13$dll->add(0,6);						//	6
14$dll->add(0,3);						//	3 6
15// Insert in the middle of the DLL
16$dll->add(1,4);						//	3 4 6
17$dll->add(2,5);						//	3 4 5 6
18$dll->unshift(2);					//	2 3 5 4 6
19// Insert at the beginning and end of the DLL
20$dll->add(0,1);						//	1 2 3 4 5 6
21$dll->add(6,7);						//	1 2 3 4 5 6 7
22
23echo count($dll)."\n";
24
25echo $dll->pop()."\n";
26echo $dll->pop()."\n";
27echo $dll->pop()."\n";
28echo $dll->pop()."\n";
29echo $dll->pop()."\n";
30echo $dll->pop()."\n";
31echo $dll->pop()."\n";
32
33// Test refcounted value
34$str = "foo";
35$str .= "bar";
36$dll->add(0, $str);
37$dll->add(0, $str);
38var_dump($dll->shift());
39var_dump($dll->shift());
40
41?>
42--EXPECT--
43Exception: SplDoublyLinkedList::add(): Argument #1 ($index) is out of range
447
457
466
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484
493
502
511
52string(6) "foobar"
53string(6) "foobar"
54