How can I make this code work for vb 3.5.x

[BoYagoob]

Hello,

There is a hack used for vb 3.0.x, which has an instruction:

################################################## ########

#########
# Code modifications in file "index.php"
################################################## ########

#########

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search for this code: (almost at the end)
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eval('$navbar = "' . fetch_template('navbar') . '";');

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change it to:
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// Hack: most active user
$start = TIMENOW - TIMENOW % 86400;
$end = $start + 86400;
$maxposter = $DB_site->query_first("SELECT

user.username,user.userid,count(*) total FROM

".TABLE_PREFIX."user AS user,".TABLE_PREFIX."post AS post

WHERE user.userid=post.userid AND post.dateline BETWEEN

$start AND $end GROUP BY post.userid ORDER BY total DESC

LIMIT 1");

eval('$navbar = "' . fetch_template('navbar') . '";');

This is the code:

// Hack: most active user
$start = TIMENOW - TIMENOW % 86400;
$end = $start + 86400;
$maxposter = $DB_site->query_first("SELECT user.username,user.userid,count(*) total FROM ".TABLE_PREFIX."user AS user,".TABLE_PREFIX."post AS post WHERE user.userid=post.userid AND post.dateline BETWEEN $start AND $end GROUP BY post.userid ORDER BY total DESC LIMIT 1");

eval('$navbar = "' . fetch_template('navbar') . '";');

Please can you help me in how can I make it a product or a plugin for a vb 3.5.x ?

Kind regards ..