$Web Form Action Len: Difference between revisions
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<span class="pageSubtitle"><section begin="desc" />Return action URL length<section end="desc" /></span> | <span class="pageSubtitle"><section begin="desc" />Return action URL length<section end="desc" /></span> | ||
<var>$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"><section begin="syntax" /> % | <p class="syntax"><section begin="syntax" />%rc = $Web_Form_Action_Len | ||
<section end="syntax" /></p> | <section end="syntax" /></p> | ||
==Usage notes== | |||
<var>$ | <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="' ... | <p class="code">PRINT '<form method="POST" action="' ... | ||
FOR %I FROM 1 TO $Web_Form_Action_Len BY 255 | |||
PRINT $Web_Form_Action(%I) ... | |||
END FOR | |||
PRINT '">' | |||
</p> | </p> | ||
==See also== | |||
<ul> | |||
<li><var>[[$Web_Form_Done]]</var> | |||
</ul> | |||
[[Category:Janus Web Server $functions|$Web_Form_Action_Len]] | |||
[[Category:Janus Web Server $functions| | |||
Revision as of 22:09, 6 June 2012
<section begin="desc" />Return action URL length<section end="desc" />
$Web_Form_Action_Len takes no arguments and returns the length of the relative URL of the current request.
Syntax
<section begin="syntax" />%rc = $Web_Form_Action_Len <section end="syntax" />
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 '">'