1 | <?php |
||
9 | class HelpDocument implements DomDataInterface |
||
10 | { |
||
11 | /** var Command */ |
||
12 | protected $command; |
||
13 | |||
14 | /** var \DOMDocument */ |
||
15 | protected $dom; |
||
16 | |||
17 | /** |
||
18 | * Create a help document from a Symfony Console command |
||
19 | */ |
||
20 | public function __construct(Command $command) |
||
28 | |||
29 | /** |
||
30 | * Convert data into a \DomDocument. |
||
31 | * |
||
32 | * @return \DomDocument |
||
33 | */ |
||
34 | public function getDomData() |
||
38 | |||
39 | /** |
||
40 | * Create the base help DOM prior to alteration by the Command object. |
||
41 | * @param Command $command |
||
42 | * @return \DomDocument |
||
43 | */ |
||
44 | private static function generateBaseHelpDom(Command $command) |
||
51 | |||
52 | /** |
||
53 | * Alter the DOM document per the command object |
||
54 | * @param Command $command |
||
55 | * @param \DomDocument $dom |
||
56 | * @return \DomDocument |
||
57 | */ |
||
58 | private static function alterHelpDocument(Command $command, \DomDocument $dom) |
||
65 | } |
||
66 |
Let’s assume you have a class which uses late-static binding:
}
The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the
getSomeVariable()
on that sub-class, you will receive a runtime error:In the case above, it makes sense to update
SomeClass
to useself
instead: