Running PHP 4.3.2 on Windows 2000 I had to use the following expression to create an empty Variant:
<?php
$empty = new Variant(null);
print $empty->type // ==> 1
?>
NOT
<?php
$empty = new Variant();
print $empty->type // ==> 0
?>
The two expressions return different Variant type values!
VARIANT
方法
string VARIANT::VARIANT ( [mixed value [, int type [, int codepage]]] )VARIANT 类构造函数。参数：
- value
初始值。若省略则创建一个 VT_EMPTY 对象。
- type
指定 VARIANT 对象的内容类型。可用的值为 VT_UI1、VT_UI2、VT_UI4、VT_I1、VT_I2、VT_I4、VT_R4、VT_R8、VT_INT、VT_UINT、VT_BOOL、VT_ERROR、VT_CY、VT_DATE、VT_BSTR、VT_DECIMAL、VT_UNKNOWN、VT_DISPATCH 和 VT_VARIANT。这些值相互排斥，但是可以使用 VT_BYREF 将它们联合起来指定为一个值。若省略，则使用参数 value 的类型。额外信息请查阅 msdn 库。
- codepage
指定用于将 PHP 字符串（php-strings）转换成 UNICODE 字符串（unicode-strings）的代码页，反之亦然。可用的值为 CP_ACP、CP_MACCP、CP_OEMCP、CP_SYMBOL、CP_THREAD_ACP, CP_UTF7 和 CP_UTF8。
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User Contributed Notes
mark dot pearson at capita dot co dot uk
30-Oct-2003 03:51
30-Oct-2003 03:51
richard dot quadling at carval dot co dot uk
26-Feb-2003 09:50
26-Feb-2003 09:50
With thanks to Harald Radi and Wez Furlong.
Some VBA functions have optional parameters. Sometimes the parameters you want to pass are not consecutive.
e.g.
GoTo What:=wdGoToBookmark, Name="BookMarkName"
GoTo(wdGoToBookmark,,,"BookMarkName)
In PHP, the "blank" parameters need to be empty.
Which is ...
<?php
// Some servers may have an auto timeout, so take as long as you want.
set_time_limit(0);
// Show all errors, warnings and notices whilst developing.
error_reporting(E_ALL);
// Used as a placeholder in certain COM functions where no parameter is required.
$empty = new VARIANT();
// Load the appropriate type library.
com_load_typelib('Word.Application');
// Create an object to use.
$word = new COM('word.application') or die('Unable to load Word');
print "Loaded Word, version {$word->Version}\n";
// Open a new document with bookmarks of YourName and YourAge.
$word->Documents->Open('C:/Unfilled.DOC');
// Fill in the information from the form.
$word->Selection->GoTo(wdGoToBookmark,$empty,$empty,'YourName'); // Note use of wdGoToBookmark, from the typelibrary and the use of $empty.
$word->Selection->TypeText($_GET['YourName']);
$word->Selection->GoTo(wdGoToBookmark,$empty,$empty,'YourAge');
$word->Selection->TypeText($_GET['YourAge']);
// Save it, close word and finish.
$word->Documents[1]->SaveAs("C:/{$_GET['YourName']}.doc");
$word->Quit();
$word->Release();
$word = null;
print "Word closed.\n";
?>
The example document is ...
Hello [Bookmark of YourName], you are [Bookmark of YourAge] years old.
and it would be called ...
word.php?YourName=Richard%20Quadling&YourAge=35
Regards,
Richard.
alain at samoun dot com
03-Sep-2001 04:37
03-Sep-2001 04:37
<?php
# I think that we need some examples of this thing:
# Lets define a real variant:
$varREAL= new Variant("9.34 is a real number",VT_R8);
print "Value:". $varREAL->value; # Will print 9.34
# Now an integer
$varINT= new Variant("9.34 Printed as an integer",VT_INT);
print "Value:". $varINT->value; # Will print 9
# Now a string
$varSTR= new Variant("9.34 Printed as a string",VT_BSTR);
print "Value:". $varSTR->value; # Will 9.34 Printed as a string
?>