1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 299539 $ -->
<chapter xml:id="language.oop5" xmlns="http://docbook.org/ns/docbook">
<title>Classes and Objects</title>
<sect1 xml:id="oop5.intro">
<title>Introduction</title>
<para>
Starting with PHP 5, the object model was rewritten to allow for better
performance and more features. This was a major change from PHP 4. PHP 5
has a full object model.
</para>
<para>
Among the features in PHP 5 are the inclusions of
<link linkend="language.oop5.visibility">visibility</link>,
<link linkend="language.oop5.abstract">abstract</link> and
<link linkend="language.oop5.final">final</link> classes and methods,
additional <link linkend="language.oop5.magic">magic methods</link>,
<link linkend="language.oop5.interfaces">interfaces</link>,
<link linkend="language.oop5.cloning">cloning</link> and
<link linkend="language.oop5.typehinting">typehinting</link>.
</para>
<para>
PHP treats objects in the same way as references or handles, meaning that
each variable contains an object reference rather than a copy of the entire
object. See
<link linkend="language.oop5.references">Objects and References</link>
</para>
&tip.userlandnaming;
</sect1>
&language.oop5.basic;
&language.oop5.properties;
&language.oop5.constants;
&language.oop5.autoload;
&language.oop5.decon;
&language.oop5.visibility;
&language.oop5.inheritance;
&language.oop5.paamayim-nekudotayim;
&language.oop5.static;
&language.oop5.abstract;
&language.oop5.interfaces;
&language.oop5.overloading;
&language.oop5.iterations;
&language.oop5.patterns;
&language.oop5.magic;
&language.oop5.final;
&language.oop5.cloning;
&language.oop5.object-comparison;
&language.oop5.typehinting;
&language.oop5.late-static-bindings;
&language.oop5.references;
&language.oop5.serialization;
&language.oop5.changelog;
</chapter>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|
