$Web Hdr Name: Difference between revisions
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{{DISPLAYTITLE:$Web_Hdr_Name}} | {{DISPLAYTITLE:$Web_Hdr_Name}} | ||
<span class="pageSubtitle" | <span class="pageSubtitle">Name of request header field</span> | ||
<var>$Web_Hdr_Name</var> retrieves the name of a field in a request header. | |||
<var>$Web_Hdr_Name</var> takes a single argument and returns a string, or null if the number references a non-existing field. | |||
==Syntax== | ==Syntax== | ||
<p class="syntax">< | <p class="syntax"><span class="term">%count</span> = $Web_Hdr_Name( <span class="term">field_number</span> ) | ||
< | </p> | ||
$Web_Hdr_Name is useful when writing generic server applications, when the server does not know what field name exists at a particular location in a request. | <var>$Web_Hdr_Name</var> is useful when writing generic server applications, when the server does not know what field name exists at a particular location in a request. | ||
<p class="code"> | <p class="code">* Get the number of header fields. | ||
%x = $Web_Num_Hdr | |||
* Load the header field names into an array. | |||
FOR %y FROM 1 TO %x | |||
%HDR_FIELD(%y) = $Web_Hdr_Name(%y) | |||
END FOR | |||
</p> | </p> | ||
==See also== | |||
See also | |||
<ul> | <ul> | ||
<li><var>[[$Web_Hdr_Len]]</var> | |||
<li> | <li><var>[[$Web_Hdr_Parm]]</var> | ||
<li> | <li><var>[[$Web_Num_Hdr]]</var> | ||
<li> | |||
</ul> | </ul> | ||
[[Category:Janus Web Server $functions|$Web_Hdr_Name]] | [[Category:Janus Web Server $functions|$Web_Hdr_Name]] | ||
Latest revision as of 22:25, 5 June 2013
Name of request header field
$Web_Hdr_Name retrieves the name of a field in a request header.
$Web_Hdr_Name takes a single argument and returns a string, or null if the number references a non-existing field.
Syntax
%count = $Web_Hdr_Name( field_number )
$Web_Hdr_Name is useful when writing generic server applications, when the server does not know what field name exists at a particular location in a request.
* Get the number of header fields. %x = $Web_Num_Hdr * Load the header field names into an array. FOR %y FROM 1 TO %x %HDR_FIELD(%y) = $Web_Hdr_Name(%y) END FOR