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Fixed whitespace.

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@321337 c90b9560-bf6c-de11-be94-00142212c4b1
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Shein Alexey 2011-12-22 16:08:09 +00:00
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commit 871545d23e
1 changed files with 58 additions and 59 deletions
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117
language/oop5/paamayim-nekudotayim.xml
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@ -1,37 +1,37 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<sect1 xml:id="language.oop5.paamayim-nekudotayim" xmlns="http://docbook.org/ns/docbook">
<title>Scope Resolution Operator (::)</title>
<sect1 xml:id="language.oop5.paamayim-nekudotayim" xmlns="http://docbook.org/ns/docbook">
<title>Scope Resolution Operator (::)</title>
<para>
The Scope Resolution Operator (also called Paamayim Nekudotayim) or in
simpler terms, the double colon, is a token that allows access to
<link linkend="language.oop5.static">static</link>,
<link linkend="language.oop5.constants">constant</link>, and overridden
properties or methods of a class.
</para>
<para>
The Scope Resolution Operator (also called Paamayim Nekudotayim) or in
simpler terms, the double colon, is a token that allows access to
<link linkend="language.oop5.static">static</link>,
<link linkend="language.oop5.constants">constant</link>, and overridden
properties or methods of a class.
</para>
<para>
When referencing these items from outside the class definition, use
the name of the class.
</para>
<para>
When referencing these items from outside the class definition, use
the name of the class.
</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>,
<literal>parent</literal> and <literal>static</literal>).
</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>,
<literal>parent</literal> and <literal>static</literal>).
</para>
<para>
Paamayim Nekudotayim would, at first, seem like a strange choice for
naming a double-colon. However, while writing the Zend Engine 0.5
(which powers PHP 3), that's what the Zend team decided to call it.
It actually does mean double-colon - in Hebrew!
</para>
<para>
Paamayim Nekudotayim would, at first, seem like a strange choice for
naming a double-colon. However, while writing the Zend Engine 0.5
(which powers PHP 3), that's what the Zend team decided to call it.
It actually does mean double-colon - in Hebrew!
</para>
<example>
<title>:: from outside the class definition</title>
<programlisting role="php">
<example>
<title>:: from outside the class definition</title>
<programlisting role="php">
<![CDATA[
<?php
class MyClass {
@ -44,18 +44,18 @@ echo $classname::CONST_VALUE; // As of PHP 5.3.0
echo MyClass::CONST_VALUE;
?>
]]>
</programlisting>
</example>
</programlisting>
</example>
<para>
Three special keywords <varname>self</varname>, <varname>parent</varname> and
<varname>static</varname> are used to access properties or methods from inside
the class definition.
</para>
<para>
Three special keywords <varname>self</varname>, <varname>parent</varname> and
<varname>static</varname> are used to access properties or methods from inside
the class definition.
</para>
<example>
<title>:: from inside the class definition</title>
<programlisting role="php">
<example>
<title>:: from inside the class definition</title>
<programlisting role="php">
<![CDATA[
<?php
class OtherClass extends MyClass
@ -74,21 +74,21 @@ echo $classname::doubleColon(); // As of PHP 5.3.0
OtherClass::doubleColon();
?>
]]>
</programlisting>
</example>
</programlisting>
</example>
<para>
When an extending class overrides the parents definition of a method,
PHP will not call the parent's method. It's up to the extended class
on whether or not the parent's method is called. This also applies to <link
linkend="language.oop5.decon">Constructors and Destructors</link>, <link
linkend="language.oop5.overloading">Overloading</link>, and <link
linkend="language.oop5.magic">Magic</link> method definitions.
</para>
<para>
When an extending class overrides the parents definition of a method,
PHP will not call the parent's method. It's up to the extended class
on whether or not the parent's method is called. This also applies to <link
linkend="language.oop5.decon">Constructors and Destructors</link>, <link
linkend="language.oop5.overloading">Overloading</link>, and <link
linkend="language.oop5.magic">Magic</link> method definitions.
</para>
<example>
<title>Calling a parent's method</title>
<programlisting role="php">
<example>
<title>Calling a parent's method</title>
<programlisting role="php">
<![CDATA[
<?php
class MyClass
@ -113,15 +113,15 @@ $class = new OtherClass();
$class->myFunc();
?>
]]>
</programlisting>
</example>
<para>
See also <link linkend="language.oop5.basic.class.this">some examples of
static call trickery</link>.
</para>
</programlisting>
</example>
<para>
See also <link linkend="language.oop5.basic.class.this">some examples of
static call trickery</link>.
</para>
</sect1>
</sect1>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
@ -142,4 +142,3 @@ vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->