Environment Variable Must Be Uppercase in ENVIRON$ (62208)
The information in this article applies to:
- Microsoft QuickBASIC 4.0
- Microsoft QuickBASIC 4.0b
- Microsoft QuickBASIC 4.5
- Microsoft BASIC Compiler for MS-DOS and OS/2 6.0
- Microsoft BASIC Compiler for MS-DOS and OS/2 6.0b
- Microsoft Basic Professional Development System for MS-DOS 7.0
- Microsoft Basic Professional Development System for MS-DOS 7.1
This article was previously published under Q62208 SUMMARY
If "Set name=test" is entered in lowercase letters at the DOS command
line, the ENVIRON$("NAME") function returns "test" only if "name" is
in all uppercase letters in the ENVIRON$ function. If "name" is not in
uppercase letters or if it is in mixed case, a null string will be
returned. In other words, the argument to the ENVIRON$ function must
be in all uppercase letters or a null string will be returned.
This behavior occurs in Microsoft QuickBasic versions 4.00, 4.00b, and
4.50, Microsoft Basic Compiler versions 6.00 and 6.00b, and Microsoft
Basic Professional Development System (PDS) versions 7.00 and 7.10 for
MS-DOS.
Program
A$= ENVIRON$("NAME") 'Don't use ENVIRON$("name")
PRINT A$
Output
| Modification Type: | Minor | Last Reviewed: | 8/16/2005 |
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| Keywords: | KB62208 |
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