Document that static properties may not be initialized to expressions.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@268329 c90b9560-bf6c-de11-be94-00142212c4b1
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Torben Wilson 2008-11-05 07:38:18 +00:00
parent 476b6b1b1b
commit 1b92251272

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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.17 $ -->
<!-- $Revision: 1.18 $ -->
<sect1 xml:id="language.oop5.static" xmlns="http://docbook.org/ns/docbook">
<title>Static Keyword</title>
@ -32,6 +32,14 @@
Calling non-static methods statically generates an E_STRICT level warning.
</para>
<para>
Like any other PHP static variable, static properties must be
initialized using a literal or constant; expressions are not
allowed. So while you may initialize a static property to an
integer or array (for instance), you may not initialize it to
another variable, to a function return value, or to an object.
</para>
<para>
As of PHP 5.3.0, it's possible to reference the class using a variable.
The variable's value can not be a keyword (e.g. <literal>self</literal>,