$Web Hdr Len or $Web Hdr Parm Len: Difference between revisions

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{{DISPLAYTITLE:$Web_Hdr_Len}}
{{DISPLAYTITLE:$Web_Hdr_Len or $Web_Hdr_Parm_Len}}
<span class="pageSubtitle"><section begin="desc" />Length of request header field<section end="desc" /></span>
<span class="pageSubtitle">Length of request header field</span>


<var>$Web_Hdr_Len</var> retrieves the length of a field in a request header.


<var>$Web_Hdr_Len</var> takes two arguments and returns a number, or zero if the header does not exist.


$Web_Hdr_Len retrieves the length of a field in a request header.
==Syntax==
==Syntax==
<p class="syntax"><section begin="syntax" /> %RC = $Web_Hdr_Len( fieldname, occurrence )
<p class="syntax"><span class="term">%rc</span> = <span class="literal">$Web_Hdr_Len</span>(<span class="term"> fieldname</span>, <span class="term">occurrence</span> )
<section end="syntax" /></p>
</p>


 
===Syntax terms===
$Web_Hdr_Len takes two arguments and returns a number, or zero if the header does not exist.
<table class="syntaxTable">
<table class="syntaxTable">
<tr><th>fieldname</th>
<tr><th>fieldname</th>
<td>The name of the header field, returned by $Web_Hdr_Name. Required argument if occurrence not specified, otherwise optional.</td></tr>
<td>The name of the header field, returned by <var>$Web_Hdr_Name</var>. Required argument if occurrence not specified, otherwise optional.</td></tr>
<tr><th>occurrence</th>
<tr><th>occurrence</th>
<td>The occurrence number of a header field, or the occurrence number of the header field matching ''fieldname'', if ''fieldname'' is specified. Optional argument if ''fieldname'' is specified, otherwise it is required.
<td>The occurrence number of a header field, or the occurrence number of the header field matching ''fieldname'', if ''fieldname'' is specified. Optional argument if ''fieldname'' is specified, otherwise it is required.
</td></tr></table>
</td></tr></table>


 
==See also==
See also:
<ul>
<ul>
 
<li><var>[[$Web_Hdr_Name]]</var>
<li>[[$Web_Hdr_Name]]  
<li><var>[[$Web_Hdr_Parm]]</var>
<li>[[$Web_Hdr_Parm]]  
<li><var>[[$Web_Num_Hdr]]</var>
<li>[[$Web_Num_Hdr]]
</ul>
</ul>




[[Category:Janus Web Server $functions|$Web_Hdr_Len]]
[[Category:Janus Web Server $functions|$Web_Hdr_Len]]

Latest revision as of 22:24, 5 June 2013

Length of request header field

$Web_Hdr_Len retrieves the length of a field in a request header.

$Web_Hdr_Len takes two arguments and returns a number, or zero if the header does not exist.

Syntax

%rc = $Web_Hdr_Len( fieldname, occurrence )

Syntax terms

fieldname The name of the header field, returned by $Web_Hdr_Name. Required argument if occurrence not specified, otherwise optional.
occurrence The occurrence number of a header field, or the occurrence number of the header field matching fieldname, if fieldname is specified. Optional argument if fieldname is specified, otherwise it is required.

See also