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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<chapter xml:id="faq.migration5" xmlns="http://docbook.org/ns/docbook">
<title>Migrating from PHP 4 to PHP 5</title>
<titleabbrev>Migrating from PHP 4 to PHP 5</titleabbrev>
<para>
This faq section will help you migrate from PHP 4 to PHP 5.
</para>
<qandaset>
<qandaentry xml:id="faq.migration5.php45">
<question>
<para>
Migrating from PHP 4 to PHP 5
</para>
</question>
<answer>
<para>
Although PHP 5 offers many new features, it's designed to be as
compatible with earlier versions of PHP as possible with little
functionality being broken in the process.
</para>
<para>
Be sure to read the appropriate <link linkend="migration5">PHP 5
migration appendix</link> of this manual as it contains even more
information on the topic of migrating to PHP 5.
</para>
</answer>
</qandaentry>
<qandaentry xml:id="faq.migration5.mysql">
<question>
<para>
Does MySQL work in PHP 5? It seemed to have disappeared.
</para>
</question>
<answer>
<para>
<link linkend="ref.mysql">MySQL</link> is supported with the only
change being that MySQL support is no longer enabled by
<emphasis>default</emphasis> in PHP 5. This essentially means that
PHP doesn't include the <option role="configure">--with-mysql</option>
option in the <link linkend="configuration">configure</link> line so
that you must now manually do this when compiling PHP. Windows users will
edit &php.ini; and enable the <filename>php_mysql.dll</filename> DLL as
in PHP 4 no such DLL existed, it was simply built into your Windows
PHP binaries.
</para>
<para>
Also, the MySQL client libraries are no longer bundled with PHP. More
details on this topic are covered in
<link linkend="faq.databases.mysql.php5">the following FAQ</link> and
be sure to read the <link linkend="ref.mysql">MySQL section</link>
for details on installing MySQL. An example configure line would be
<option role="configure">--with-mysql=/usr</option> while Windows users
will need the <filename>libmySQL.dll</filename> available to the system.
</para>
</answer>
</qandaentry>
<qandaentry xml:id="faq.migration5.oop">
<question>
<para>
I hear PHP 5 has an entirely new OOP model, will my existing OOP code
work? Where do I find information on these new OOP features?
</para>
</question>
<answer>
<para>
The main change in PHP 5 is to the OOP model as PHP 5 now uses
the <emphasis>Zend Engine 2.0</emphasis>. The <link
linkend="ini.zend.ze1-compatibility-mode">
zend.ze1_compatibility_mode</link> directive enables compatability
with the <literal>Zend Engine 1.0</literal> (PHP 4).
</para>
<para>
The new OOP model is documented in the <link linkend="language.oop5">
OOP language reference</link> and <link linkend="migration5.oop">OOP
migration appendix</link> sections.
</para>
</answer>
</qandaentry>
<qandaentry xml:id="faq.migration5.changes">
<question>
<para>
So besides the new OOP model, what else has changed in PHP 5? Also, is
there a PHP 5 specific version of the PHP manual?
</para>
</question>
<answer>
<para>
Few other changes exist, see the <link linkend="migration5">migration
5 appendix</link> for details. There won't be a PHP 5 specific
version of the manual as the bulk of PHP remains the same.
</para>
</answer>
</qandaentry>
</qandaset>
</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
-->
|
