$Web Hdr Parm Lstr: Difference between revisions
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==Usage notes== | ==Usage notes== | ||
<ul> | <ul> | ||
<li><var>$Web_Hdr_Parm_Lstr</var> works much like $WEB_HDR_PARM, except for the following: | <li><var>$Web_Hdr_Parm_Lstr</var> works much like <var>$WEB_HDR_PARM</var>, except for the following: | ||
<ul> | <ul> | ||
<li>It can return more than 255 bytes of data into a longstring. | <li>It can return more than 255 bytes of data into a longstring. | ||
Revision as of 20:26, 26 October 2012
<section begin="desc" />Value of header parameter to longstring<section end="desc" />
$Web_Hdr_Parm_Lstr retrieves the value of an HTTP header parameter as a longstring.
$Web_Hdr_Parm_Lstr takes two arguments, and it returns a longstring (or null for any error condition).
Syntax
<section begin="syntax" />%string = $Web_Hdr_Parm_Lstr( name, occurrence ) <section end="syntax" />
Syntax terms
| name | The name of the header parameter, returned by $Web_Hdr_Name. This is a required argument if occurrence is not specified; otherwise it is optional. |
|---|---|
| occurrence | The occurrence number of a header parameter, or the occurrence number of the header parameter matching name, if name is specified. Optional argument if name is specified, otherwise it is required. |
Usage notes
- $Web_Hdr_Parm_Lstr works much like $WEB_HDR_PARM, except for the following:
- It can return more than 255 bytes of data into a longstring.
- It causes request cancellation if the result would be truncated, either on assignment to a target STRING %variable, or as input to a STRING $function argument or subroutine parameter.
- It does not have position and length arguments (arguments 3 and 4).
Examples
This example places the value of two header parameters into a User Language Longstring variable of the same name.
%accept = $Web_Hdr_Parm_Lstr('ACCEPT') %referer = $Web_Hdr_Parm_Lstr('REFERER')