$Web Hdr Parm Lstr: Difference between revisions

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{{DISPLAYTITLE:$Web_Hdr_Parm_Lstr}}
{{DISPLAYTITLE:$Web_Hdr_Parm_Lstr}}
<span class="pageSubtitle"><section begin="desc" />Value of header parameter to longstring<section end="desc" /></span>
<span class="pageSubtitle">Value of header parameter to longstring</span>


<var>$Web_Hdr_Parm_Lstr</var> retrieves the value of an HTTP header parameter as a [[Longstrings|longstring]].
<var>$Web_Hdr_Parm_Lstr</var> retrieves the value of an HTTP header parameter as a [[Longstrings|longstring]].
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==Syntax==
==Syntax==
<p class="syntax"><section begin="syntax" />%string = $Web_Hdr_Parm_Lstr( name, occurrence )
<p class="syntax"><span class="term">%string</span> = <span class="literal">$Web_Hdr_Parm_Lstr</span>( <span class="term">name</span>, <span class="term">occurrence</span> )
<section end="syntax" /></p>
</p>


===Syntax terms===
===Syntax terms===

Latest revision as of 02:03, 16 April 2013

Value of header parameter to longstring

$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

%string = $Web_Hdr_Parm_Lstr( name, occurrence )

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')

See also