$Web Form Action Len: Difference between revisions
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{{DISPLAYTITLE:<var>$Web_Form_Action</var>.Len}} | {{DISPLAYTITLE:<var>$Web_Form_Action</var>.Len}} | ||
<span class="pageSubtitle" | <span class="pageSubtitle">Return action URL length</span> | ||
<var>$Web_Form_Action_Len</var> takes no arguments and returns the length of the relative URL of the current request. | |||
==Syntax== | ==Syntax== | ||
<p class="syntax">< | <p class="syntax"><span class="term">%rc</span> = $Web_Form_Action_Len | ||
</p> | |||
==Usage notes== | |||
<var>$Web_Form_Action_Len</var> is most useful in conjunction with <var>[[$Web_Form_Action]]</var> when there is a possibility that the current URL is longer than 255 bytes. In such a case, <var>$Web_Form_Action</var> can be used in a loop in conjunction with <var>$Web_Form_Action_Len</var>, as demonstrated here: | |||
<p class="code">PRINT '<form method="POST" action="' ... | |||
FOR %I FROM 1 TO $Web_Form_Action_Len BY 255 | |||
PRINT $Web_Form_Action(%I) ... | |||
END FOR | |||
PRINT '">' | |||
</p> | |||
<p class="note"><b>Note:</b> The maximum Janus Web Server URL length is 1,024 bytes. </p> | |||
<p class=" | |||
</p> | |||
See also | ==See also== | ||
<ul> | |||
<li><var>[[$Web_Form_Done]]</var> | |||
</ul> | |||
[[Category:Janus Web Server $functions| | [[Category:Janus Web Server $functions|$Web_Form_Action_Len]] | ||
Latest revision as of 22:01, 11 September 2019
Return action URL length
$Web_Form_Action_Len takes no arguments and returns the length of the relative URL of the current request.
Syntax
%rc = $Web_Form_Action_Len
Usage notes
$Web_Form_Action_Len is most useful in conjunction with $Web_Form_Action when there is a possibility that the current URL is longer than 255 bytes. In such a case, $Web_Form_Action can be used in a loop in conjunction with $Web_Form_Action_Len, as demonstrated here:
PRINT '<form method="POST" action="' ... FOR %I FROM 1 TO $Web_Form_Action_Len BY 255 PRINT $Web_Form_Action(%I) ... END FOR PRINT '">'
Note: The maximum Janus Web Server URL length is 1,024 bytes.