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COM and .Net (Windows)

XV. COM and .Net (Windows)

Wstęp

COM is an acronym for Component Object Model; it is an object orientated layer (and associated services) on top of DCE RPC (an open standard) and defines a common calling convention that enables code written in any language to call and interoperate with code written in any other language (provided those languages are COM aware). Not only can the code be written in any language, but it need not even be part of the same executable; the code can be loaded from a DLL, be found in another process running on the same machine, or, with DCOM (Distributed COM), be found in another process on a remote machine, all without your code even needing to know where a component resides.

There is a subset of COM known as OLE Automation which comprises a set of COM interfaces that allow loose binding to COM objects, so that they can be introspected and called at run-time without compile-time knowledge of how the object works. The PHP COM extension utilizes the OLE Automation interfaces to allow you to create and call compatible objects from your scripts. Technically speaking, this should really be called the "OLE Automation Extension for PHP", since not all COM objects are OLE compatible.

Now, why would or should you use COM? COM is one of the main ways to glue applications and components together on the Windows platform; using COM you can launch Microsoft Word, fill in a document template and save the result as a Word document and send it to a visitor of your web site. You can also use COM to perform administrative tasks for your network and to configure your IIS; these are just the most common uses; you can do much more with COM.

Starting with PHP 5, this extension (and this documentation) was rewritten from scratch and much of the old confusing and bogus cruft has be removed. Additionally, we support the instantiation and creation of .Net assemblies using the COM interoperability layer provided by Microsoft.

Please read this article for an overview of the changes in this extension in PHP 5.

Wymagania

COM functions are only available for the Windows version of PHP.

.Net support requires PHP 5 and the .Net runtime.

Instalacja

By używać tych funkcji, nie trzeba niczego instalować. Są one częścią jądra PHP.

PHP w wersji dla systemów Windows posiada wbudowaną obsługę dla tego rozszerzenia. Nie trzeba ładować żadnych dodatkowych rozszerzeń aby korzystać z tych funkcji.

You are responsible for installing support for the various COM objects that you intend to use (such as MS Word); we don't and can't bundle all of those with PHP.

For Each

Starting with PHP 5, you may use PHP's own foreach statement to iterate over the contents of a standard COM/OLE IEnumVariant. In laymans terms, this means that you can use foreach in places where you would have used For Each in VB/ASP code.

Przykład 1. For Each in ASP

<%
Set domainObject = GetObject("WinNT://Domain")
For Each obj in domainObject
  Response.Write obj.Name & "<br />"
Next
%>

Przykład 2. while() ... Next() in PHP 4

<?php
$domainObject
= new COM("WinNT://Domain");
while (
$obj = $domainObject->Next()) {
   echo
$obj->Name . "<br />";
}
?>

Przykład 3. foreach in PHP 5

<?php
$domainObject
= new COM("WinNT://Domain");
foreach (
$domainObject as $obj) {
   echo
$obj->Name . "<br />";
}
?>

Arrays and Array-style COM properties

Many COM objects expose their properties as arrays, or using array-style access. In PHP 4, you may use PHP array syntax to read/write such a property, but only a single dimension is allowed. If you want to read a multi-dimensional property, you could instead make the property access into a function call, with each parameter representing each dimension of the array access, but there is no way to write to such a property.

PHP 5 introduces the following new features to make your life easier:

  • Access multi-dimensional arrays, or COM properties that require multiple parameters using PHP array syntax. You can also write or set properties using this technique.

  • Iterate SafeArrays ("true" arrays) using the sekcja foreach w RozdziaÅ‚ 16 control structure. This works because SafeArrays include information about their size. If an array-style property implements IEnumVariant then you can also use foreach for that property too; take a look at sekcja For Each for more information on this topic.

Exceptions (PHP 5)

This extension will throw instances of the class com_exception whenever there is a potentially fatal error reported by COM. All COM exceptions have a well-defined code property that corresponds to the HRESULT return value from the various COM operations. You may use this code to make programmatic decisions on how to handle the exception.

Konfiguracja uruchomieniowa

Na działanie tych funcji wpływają ustawienia zawarte w pliku php.ini.

Tabela 1. Com configuration options

NameDefaultChangeableChangelog
com.allow_dcom"0"PHP_INI_SYSTEMAvailable since PHP 4.0.5.
com.autoregister_typelib"0"PHP_INI_ALLPHP_INI_SYSTEM in PHP 4. Available since PHP 4.1.0.
com.autoregister_verbose"0"PHP_INI_ALLPHP_INI_SYSTEM in PHP 4. Available since PHP 4.1.0.
com.autoregister_casesensitive"1"PHP_INI_ALLPHP_INI_SYSTEM in PHP 4. Available since PHP 4.1.0.
com.code_page""PHP_INI_ALLAvailable since PHP 5.0.0.
com.typelib_file""PHP_INI_SYSTEMAvailable since PHP 4.0.5.
Szczegóły i definicje dotyczące stałych PHP_INI_* znajdują się w rozdziale Dodatek G.

Oto krótkie wyjaśnienie dyrektyw konfiguracji.

com.allow_dcom

When this is turned on, PHP will be allowed to operate as a D-COM (Distributed COM) client and will allow the PHP script to instantiate COM objects on a remote server.

com.autoregister_typelib

When this is turned on, PHP will attempt to register constants from the typelibrary of objects that it instantiates, if those objects implement the interfaces required to obtain that information. The case sensitivity of the constants it registers is controlled by the com.autoregister_casesensitive configuration directive.

com.autoregister_verbose

When this is turned on, any problems with loading a typelibrary during object instantiation will be reported using the PHP error mechanism. The default is off, which does not emit any indication if there was an error finding or loading the type library.

com.autoregister_casesensitive

When this is turned on (the default), constants found in auto-loaded type libraries will be registered case sensitively. See com_load_typelib() for more details.

com.code_page

It controls the default character set code-page to use when passing strings to and from COM objects. If set to an empty string, PHP will assume that you want CP_ACP, which is the default system ANSI code page.

If the text in your scripts is encoded using a different encoding/character set by default, setting this directive will save you from having to pass the code page as a parameter to the COM class constructor. Please note that by using this directive (as with any PHP configuration directive), your PHP script becomes less portable; you should use the COM constructor parameter whenever possible.

Notatka: This configuration directive was introduced with PHP 5.

com.typelib_file

When set, this should hold the path to a file that contains a list of typelibraries that should be loaded on startup. Each line of the file will be treated as the type library name and loaded as though you had called com_load_typelib(). The constants will be registered persistently, so that the library only needs to be loaded once. If a type library name ends with the string #cis or #case_insensitive, then the constants from that library will be registered case insensitively.

Stałe predefiniowane

Poniższe stałe są zdefiniowane w tym rozszerzeniu i stają się dostępne, gdy rozszerzenie jest dokompilowane do PHP, lub załadowane dynamicznie przy starcie.

CLSCTX_INPROC_SERVER (integer)

CLSCTX_INPROC_HANDLER (integer)

CLSCTX_LOCAL_SERVER (integer)

CLSCTX_REMOTE_SERVER (integer)

CLSCTX_SERVER (integer)

CLSCTX_ALL (integer)

VT_NULL (integer)

VT_EMPTY (integer)

VT_UI1 (integer)

VT_I2 (integer)

VT_I4 (integer)

VT_R4 (integer)

VT_R8 (integer)

VT_BOOL (integer)

VT_ERROR (integer)

VT_CY (integer)

VT_DATE (integer)

VT_BSTR (integer)

VT_DECIMAL (integer)

VT_UNKNOWN (integer)

VT_DISPATCH (integer)

VT_VARIANT (integer)

VT_I1 (integer)

VT_UI2 (integer)

VT_UI4 (integer)

VT_INT (integer)

VT_UINT (integer)

VT_ARRAY (integer)

VT_BYREF (integer)

CP_ACP (integer)

CP_MACCP (integer)

CP_OEMCP (integer)

CP_UTF7 (integer)

CP_UTF8 (integer)

CP_SYMBOL (integer)

CP_THREAD_ACP (integer)

VARCMP_LT (integer)

VARCMP_EQ (integer)

VARCMP_GT (integer)

VARCMP_NULL (integer)

NORM_IGNORECASE (integer)

NORM_IGNORENONSPACE (integer)

NORM_IGNORESYMBOLS (integer)

NORM_IGNOREWIDTH (integer)

NORM_IGNOREKANATYPE (integer)

NORM_IGNOREKASHIDA (integer)

DISP_E_DIVBYZERO (integer)

DISP_E_OVERFLOW (integer)

MK_E_UNAVAILABLE (integer)

Patrz także

For further information on COM read the COM specification or perhaps take a look at Don Box's Yet Another COM Library (YACL). You might find some additional useful information in our FAQ for Rozdział 57. If you're thinking of using MS Office applications on the server side, you should read the information here: Considerations for Server-Side Automation of Office.

Spis treści
COM -- COM class
DOTNET -- DOTNET class
VARIANT -- VARIANT class
com_addref --  Increases the components reference counter [deprecated]
com_create_guid --  Generate a globally unique identifier (GUID)
com_event_sink --  Connect events from a COM object to a PHP object
com_get_active_object --  Returns a handle to an already running instance of a COM object
com_get --  Gets the value of a COM Component's property [deprecated]
com_invoke --  Calls a COM component's method [deprecated]
com_isenum -- Indicates if a COM object has an IEnumVariant interface for iteration [deprecated]
com_load_typelib -- Loads a Typelib
com_load --  Creates a new reference to a COM component [deprecated]
com_message_pump --  Process COM messages, sleeping for up to timeoutms milliseconds
com_print_typeinfo --  Print out a PHP class definition for a dispatchable interface
com_propget -- Alias dla com_get()
com_propput -- Alias dla com_set()
com_propset -- Alias dla com_set()
com_release --  Decreases the components reference counter [deprecated]
com_set --  Assigns a value to a COM component's property
variant_abs --  Returns the absolute value of a variant
variant_add --  "Adds" two variant values together and returns the result
variant_and --  performs a bitwise AND operation between two variants and returns the result
variant_cast --  Convert a variant into a new variant object of another type
variant_cat --  concatenates two variant values together and returns the result
variant_cmp --  Compares two variants
variant_date_from_timestamp --  Returns a variant date representation of a Unix timestamp
variant_date_to_timestamp --  Converts a variant date/time value to Unix timestamp
variant_div --  Returns the result from dividing two variants
variant_eqv --  Performs a bitwise equivalence on two variants
variant_fix --  Returns the integer portion ? of a variant
variant_get_type -- Returns the type of a variant object
variant_idiv --  Converts variants to integers and then returns the result from dividing them
variant_imp --  Performs a bitwise implication on two variants
variant_int --  Returns the integer portion of a variant
variant_mod --  Divides two variants and returns only the remainder
variant_mul --  multiplies the values of the two variants and returns the result
variant_neg --  Performs logical negation on a variant
variant_not --  Performs bitwise not negation on a variant
variant_or --  Performs a logical disjunction on two variants
variant_pow --  Returns the result of performing the power function with two variants
variant_round --  Rounds a variant to the specified number of decimal places
variant_set_type --  Convert a variant into another type "in-place"
variant_set --  Assigns a new value for a variant object
variant_sub --  subtracts the value of the right variant from the left variant value and returns the result
variant_xor --  Performs a logical exclusion on two variants



WÄ…tki z forum o php

Najnowsze posty naszych userów

nie w³±cza sie ca³kowicie instalator systemu win xp.
witam, chcê mojej dziewczynie sformatowaæ komputer, po ustawieniu kolejno¶ci bootowania, resetuje komputer, wk³adam plyte z windowsem, i pojawia sie czarny ekran z informacja, ze wlacza sie instalator windows, potem pojawia sie niebeiski ekran z napisem instalator rozpakowywuje pliki i wtym momencie komputer staje, dysk przestaje sie krecic i naped tez, cos jakby zawieszka, dzieje sie to zarowno w przypadku winxp 1 wer. jak i ta z sp2. prosze o pomoc,

plyta glowna ECS, proc. Athlon 1GHz.
dual layer czy Double layer
Witam


Patrzê w everest jakie p³yty obs³uguje moja nagrywarka dvd.I przy jednej opcji pisze DVD+R9 Dual Layer czym¶ siê rózni od duble layer?I czy mogê kupiæ p³ytki duble layer aby je nagraæ? czy musz± byæ dual layer



Kaszanka dobra do wszystkiego [+18]
Drogie Bravo, drodzy koledzy i kole¿anki.Mam na imiê Dagmara i mam 19 lat. Moja sytuacja jest bardzo krepuj±ca i nie wiem co teraz mam zrobiæ. Jestem ju¿ doros³± dziewczyn± i mam wspania³ego ch³opaka o imieniu Marcin, którego kocham ponad ¿ycie i my¶lê ze on odwzajemnia moje uczucie. Jeste¶my ju¿ razem 6 miesiêcy i postanowili¶my dokonaæ Aktu Mi³osnego, aby umocniæ nasz zwi±zek. Nie fart polega na tym ¿e ja jestem dziewic±, a z tego co wiem On jest ju¿ do¶wiadczonym mê¿czyzn±. Bardzo obawia³am siê ¿e nie spe³niê jego oczekiwa , po prostu zawiodê! Na dodatek wszystkie moje kole¿anki potraci³y ju¿ dziewictwo i ¿eby mieæ o czym rozmawiaæ z nimi, powiedzia³am ¿e ja równie¿ nie jestem jak to siê mówi potocznie "cnotk±". O tym fakcie dowiedzia³ siê Marcin od mojej kole¿anki, Moniki, która jest jego dobr± znajom±. Gdy Marcin zapyta³ czy to prawda nie zaprzeczy³am. Ustalili¶my nasz Pierwszy Raz na najbli¿szy weekend, poniewa¿ Marcina rodzice jad± na wesele. Bardzo siê obawia³am bólu, oraz tego ¿e Marcin pos±dzi mnie o k³amstwo, wiêc postanowi³am jako¶ sobie poradziæ. Nie chcia³am przespaæ siê z "pierwszym lepszym" gdy¿ kocham Marcina i chcê aby to on by³ moim Pierwszym Mê¿czyzn±!! Akurat zdarzy³o siê tak ¿e by³am sama w domu i postanowi³am uporaæ siê z moja b³ona dziewicz±. Nie chcia³am robiæ tego palcami ani jakim¶ twardym przedmiotem a na wibrator niestety nie by³o by mnie staæ. Posz³am wiêc do lodówki i zobaczy³am nadaj±c± siê do mojego czynu kaszankê. Odpowiada³a mi rozmiarem i grubo¶ci±, by³a trochê za zimna i za twarda wiêc postanowi³am ja podgotowaæ. Kiedy nareszcie ostyg³a, nasmarowa³am ja wazelin±, i zaczê³am wk³adaæ j± do pochwy. Podda³am siê chyba za bardzo chwili i za bardzo j± ¶cisnê³am. Wtedy sta³o siê najgorsze co mog³o siê staæ!! KASZANKA SIÊ Z£AMA£A!!!!!!!!!!Rozpaczliwie próbowa³am j± wyj±æ palcami ale chyba trochê za bardzo j± rozgotowa³am i niektóre kawa³ki kaszanki zosta³y mi w pochwie i nie mogê ich wyj±æ! Wstydzê siê i¶æ do ginekologa a za kilka dni wyczekiwany przez nasz± dwójkê upojny weekend!! Nie wiem co mam zrobiæ i do kogo siê zwróciæ. Co teraz pomy¶li o mnie Marcin!! B£AGAM POMÓ¯CIE!!!!!
Zrozpaczona

Odpowied¼ Bravo:
Na wstêpie pragniemy podziêkowaæ Ci za podzielenie siê z nami swoim problemem. W twojej nader ciekawej sytuacji proponujemy Ci dwa rozwi±zania:
1. Ekstrawaganckie w stylu new art.
2. Si³owe

Pierwsze wydaje nam siê ciekawe lecz mo¿e nie przynie¶æ spodziewanych efektów. Musisz pokroiæ cebulê w kostkê, a nastêpnie podsma¿yæ j± na z³ocisty kolor na patelni (koniecznie na oleju z pierwszego tloczenia). Nastêpnie musisz dopchaæ j± do pochwy i zrobiæ 3-4 przysiadów tak aby zmiesza³a siê z kaszank±. Potem zapro¶ swojego ukochanego na romantyczne spotkanie inicjuj±ce. Przed pierwszym stosunkiem zaproponujesz mu wiêc kaszankê po staropolsku w wersji francuskiej. W ten sposób osi±gniesz dwa cele: udowodnisz mu, ¿e bardzo go kochasz i jednocze¶nie poka¿esz, ¿e ¶wietnie gotujesz. Przypominamy Ci powiedzenie "PRZEZ ¯O£¡DEK DO SERCA".

Rozwi±zanie drugie jest jednak o wiele bardziej skuteczne. Przygotuj patelniê na której mia³a¶ zarumieniæ cebulkê. Nastêpnie we¼ j± w praw± rêkê (je¶li jeste¶ leworêczna to w lew±) i [beeep]nij siê ni± z ca³ej si³y w g³owê - bo tobie to ju¿ chyba nic nie pomo¿e!
Z powa¿aniem Redakcja


Problemem bylo to, ze autor nie pozostawil mozliwosci zmian, wiec za pomoca programu PHP WebPage Editor zmienilem pewne potrzebne mi wartosci (ilosci wojsk - to akurat bylo latwe do znalezienia...), ale nie wiem, ktore wartosci odpowiadaja za czas wysylania tych jednostek wojska - chce zmienic z tych kilkunastu sekud na ok 1,5 godz... (to dziwne, bo nie jest to regularne - niektore ataki wychodza co 10 sek, niektore co 15 albo 20.