and let’s assume the following content of Bar.php:
// Bar.phpnamespaceOtherDir;useSomeDir\Foo;// This now conflicts the class OtherDir\Foo
If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the
same runtime, you will see a PHP error such as the following:
PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as OtherDir/Foo.php does not necessarily have to be loaded and the
error is only triggered if it is loaded before OtherDir/Bar.php, this problem
might go unnoticed for a while. In order to prevent this error from surfacing,
you must import the namespace with a different alias:
// Bar.phpnamespaceOtherDir;useSomeDir\FooasSomeDirFoo;// There is no conflict anymore.
Loading history...
25
26
/**
27
* Class the manages updates of *_link tables as well as similar extension-managed tables
28
*
29
* @note: LinksUpdate is managed by DeferredUpdates::execute(). Do not run this in a transaction.
30
*
31
* See docs/deferred.txt
32
*/
33
class LinksUpdate extends DataUpdate implements EnqueueableDataUpdate {
34
// @todo make members protected, but make sure extensions don't break
35
36
/** @var int Page ID of the article linked from */
37
public $mId;
38
39
/** @var Title Title object of the article linked from */
40
public $mTitle;
41
42
/** @var ParserOutput */
43
public $mParserOutput;
44
45
/** @var array Map of title strings to IDs for the links in the document */
46
public $mLinks;
47
48
/** @var array DB keys of the images used, in the array key only */
49
public $mImages;
50
51
/** @var array Map of title strings to IDs for the template references, including broken ones */
52
public $mTemplates;
53
54
/** @var array URLs of external links, array key only */
55
public $mExternals;
56
57
/** @var array Map of category names to sort keys */
58
public $mCategories;
59
60
/** @var array Map of language codes to titles */
61
public $mInterlangs;
62
63
/** @var array 2-D map of (prefix => DBK => 1) */
64
public $mInterwikis;
65
66
/** @var array Map of arbitrary name to value */
67
public $mProperties;
68
69
/** @var bool Whether to queue jobs for recursive updates */
70
public $mRecursive;
71
72
/** @var Revision Revision for which this update has been triggered */
73
private $mRevision;
74
75
/**
76
* @var null|array Added links if calculated.
77
*/
78
private $linkInsertions = null;
79
80
/**
81
* @var null|array Deleted links if calculated.
82
*/
83
private $linkDeletions = null;
84
85
/**
86
* @var null|array Added properties if calculated.
87
*/
88
private $propertyInsertions = null;
89
90
/**
91
* @var null|array Deleted properties if calculated.
92
*/
93
private $propertyDeletions = null;
94
95
/**
96
* @var User|null
97
*/
98
private $user;
99
100
/** @var IDatabase */
101
private $db;
102
103
/**
104
* Constructor
105
*
106
* @param Title $title Title of the page we're updating
107
* @param ParserOutput $parserOutput Output from a full parse of this page
108
* @param bool $recursive Queue jobs for recursive updates?
109
* @throws MWException
110
*/
111
function __construct( Title $title, ParserOutput $parserOutput, $recursive = true ) {
wikimedia /
mediawiki
Kunal Mehta
Aaron Schulz
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: