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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<chapter id="faq.com">
<title>PHP and COM</title>
<titleabbrev>PHP and COM</titleabbrev>
<para>
PHP can be used to access COM and DCOM objects on Win32 platforms.
</para>
<qandaset>
<qandaentry id="faq.com.q1">
<question>
<para>I have built a DLL to calculate something. Is there any way to run this DLL under PHP ?</para>
</question>
<answer>
<para>
If this is a simple DLL there is no way yet to run it from PHP. If the DLL contains a COM
server you may be able to access it if it implements the IDispatch interface.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q2">
<question>
<para>What does 'Unsupported variant type: xxxx (0xxxxx)' mean ?</para>
</question>
<answer>
<para>
There are dozens of VARIANT types and combinations of them. Most of them are already supported but
a few still have to be implemented.
Arrays are not completely supported. Only single dimensional indexed
only arrays can be passed between PHP and COM.
If you find other types that aren't supported, please report them as a bug (if not already reported)
and provide as much information as available.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q3">
<question>
<para>Is it possible manipulate visual objects in PHP ?</para>
</question>
<answer>
<para>
Generally it is, but as PHP is mostly used as a web scripting language it runs in the web servers context, thus
visual objects will never appear on the servers desktop.
If you use PHP for application scripting e.g. in conjunction with PHP-GTK there is no limitation in accessing and
manipulating visual objects through COM.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q4">
<question>
<para>Can I store a COM object in a session ?</para>
</question>
<answer>
<para>
No, you can't. COM instances are treated as resources and therefore they are only available in a single script's context.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q5">
<question>
<para>How can I trap COM errors ?</para>
</question>
<answer>
<para>
Currently it's not possible to trap COM errors beside the ways provided by PHP itself (@, track_errors, ..), but we are
thinking of a way to implement this.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q6">
<question>
<para>Can I generate DLL files from PHP scripts like i can in Perl ?</para>
</question>
<answer>
<para>
No, unfortunatelly there is no such tool available for PHP.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q7">
<question>
<para>What does 'Unable to obtain IDispatch interface for CLSID {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}' mean ?</para>
</question>
<answer>
<para>
This error can have multiple reasons:
<itemizedlist>
<listitem>
<simpara>
the CLSID is wrong
</simpara>
</listitem>
<listitem>
<simpara>
the requested DLL is missing
</simpara>
</listitem>
<listitem>
<simpara>
the requested component doesn't implement the IDispatch interface
</simpara>
</listitem>
</itemizedlist>
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q8">
<question>
<para>How can I run COM object from remote server ?</para>
</question>
<answer>
<para>
Exactly like you run local objects. You only have to pass the ip of the remote machine as second parameter to
the COM constructor.
</para>
<para>
Make sure that you have set <literal>com.allow_dcom=true</literal> in your <literal>php.ini</literal>.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q9">
<question>
<para>I get 'DCOM is disabled in C:\path...\scriptname.php on line 6', what can I do ?</para>
</question>
<answer>
<para>
Edit your <literal>php.ini</literal> and set <literal>com.allow_dcom=true</literal>.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q10">
<question>
<para>Is it possible to load/manipulate an ActiveX object in a page with PHP ?</para>
</question>
<answer>
<para>
This has nothing to do with PHP. ActiveX objects are loaded on client side if they are requested
by the HTML document. There is no relation to the PHP script and therefore there is no direct
server side interaction possible.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q11">
<question>
<para>Is it possible to get a running instance of a component ?</para>
</question>
<answer>
<para>
This is possible with the help of monikers. If you want to get multiple references to the same word instance
you can create that instance like shown:
</para>
<programlisting role="php">
$word = new COM("C:\docs\word.doc");
</programlisting>
<para>
This will create a new instance if there is no running instance available or it will return a handle to the
running instance, if available.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q12">
<question>
<para>Is there a way to handle an event sent from COM object ?</para>
</question>
<answer>
<para>
Not yet.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q13">
<question>
<para>I'm having problems when trying to invoke a method of a COM object wich exposes more than one interface. What can I do ?</para>
</question>
<answer>
<para>
The answer is as simple as unsatisfying. I don't know exactly but i think you can do nothing.
If someone has specific information about this, please let <ulink url="mailto:&email.harald;">me</ulink> know :)
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q14">
<question>
<para>So PHP works with COM, how about COM+ ?</para>
</question>
<answer>
<para>
COM+ extends COM by a framework for managing components through MTS and MSMQ but there is nothing special that
PHP has to support to use such components.
</para>
</answer>
</qandaentry>
<qandaentry id="faq.com.q15">
<question>
<para>If PHP can manipulate COM objects, can we imagine to use MTS to manage components resources, in conjunction with PHP ?</para>
</question>
<answer>
<para>
PHP itself doesn't handle transactions yet. Thus if an error occours no rollback is initiated. If you use components that
support transactions you will have to implement the transaction management yourself.
</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:"../../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
-->
|
