StackOverflow2013

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plurals

PO
primarykey
Id
6807615
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
7
CommunityOwnedDate
CreationDate
2011-07-24T15:08:22.287
FavoriteCount
0
LastActivityDate
2018-07-04T08:01:45.297
LastEditDate
2018-07-04T08:01:45.297
LastEditorUserId
505893
OwnerUserId
199687
ParentId
151969
PostTypeId
2
Score
429
ViewCount
0
LastEditorDisplayName
text
Body
DO NOT USE <code>self::</code>, use <code>static::</code> There is another aspect of self:: that is worth mentioning. Annoyingly <code>self::</code> refers to the scope at the point of definition not at the point of execution. Consider this simple class with two methods: <pre><code>class Person { public static function status() { self::getStatus(); } protected static function getStatus() { echo "Person is alive"; } } </code></pre> If we call <code>Person::status()</code> we will see "Person is alive" . Now consider what happens when we make a class that inherits from this: <pre><code>class Deceased extends Person { protected static function getStatus() { echo "Person is deceased"; } } </code></pre> Calling <code>Deceased::status()</code> we would expect to see "Person is deceased" however what we see is "Person is alive" as the scope contains the original method definition when call to <code>self::getStatus()</code> was defined. PHP 5.3 has a solution. the <code>static::</code> resolution operator implements "late static binding" which is a fancy way of saying that it's bound to the scope of the class called. Change the line in <code>status()</code> to <code>static::getStatus()</code> and the results are what you would expect. In older versions of PHP you will have to find a kludge to do this. See <a href="http://php.net/manual/en/language.oop5.late-static-bindings.php" rel="nofollow noreferrer">PHP Documentation</a> So to answer the question not as asked ... <code>$this-></code> refers to the current object (an instance of a class), whereas <code>static::</code> refers to a class
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1. This table or related slice is empty.
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1. POWhen to use self over $this?
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1. PTAnswer
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1. USbluish
UserOwnerUserId
1. USSqoo
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2. VO
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