$String Help!

Hello Guys, I need a little help with the below example, can someone simplify this for me?

define("PRT11_WIDTH", 600);
define("PRT11_HEIGHT", 365);
define("PRT11_REGEXP", "/\[v1-1]/");
define("PRT11_TARGET", "<div class=\"nanotabs\"><div id=\"ichi($string)\">");

function PRT11_plugin_callback($match) {
	$output = PRT11_TARGET;
	$output = str_replace("###URL###", $match[1], $output);
	return ($output);
}

function genRandomString() {
    $length = 5;
    $characters = ’0123456789abcdefghijklmnopqrstuvwxyz’;
    $string = ”;    
    for ($p = 0; $p < $length; $p++) {
        $string .= $characters[mt_rand(0, strlen($characters))];
    }
    return $string;
}


function PRT11_plugin($content) {
	return preg_replace_callback(PRT11_REGEXP, 'PRT11_plugin_callback',
$content);
}

add_filter('the_content', 'PRT11_plugin');
add_filter('the_content_rss', 'PRT11_plugin');
add_filter('comment_text', 'PRT11_plugin');
add_filter('the_excerpt', 'PRT11_plugin');

PHP:

Basically this is a shortcode, [v1-1] will output

<div class="nanotabs"><div id="ichi(RANDOM#Here)">

HTML:

I need a random # generated after id="ichi(HERE)"

However I can't get it to work...Can someone help me here?

Can This entire code be simplified?

 

define("PRT11_WIDTH", 600);
define("PRT11_HEIGHT", 365);
define("PRT11_REGEXP", "/\[v1-1]/");
define("PRT11_TARGET", "<div class=\"nanotabs\"><div id=\"ichi'.time().'\">");

function PRT11_plugin_callback($match) {
    $output = PRT11_TARGET;
    $output = str_replace("###URL###", $match[1], $output);
    return ($output);
}

function genRandomString() {
    $length = 5;
    $characters = ’0123456789abcdefghijklmnopqrstuvwxyz’;
    $string = ”;    
    for ($p = 0; $p < $length; $p++) {
        $string .= $characters[mt_rand(0, strlen($characters))];
    }
    return $string;
}


function PRT11_plugin($content) {
    return preg_replace_callback(PRT11_REGEXP, 'PRT11_plugin_callback',
$content);
}

add_filter('the_content', 'PRT11_plugin');
add_filter('the_content_rss', 'PRT11_plugin');
add_filter('comment_text', 'PRT11_plugin');
add_filter('the_excerpt', 'PRT11_plugin');

Code (markup):

 

This is what outputed :

<div class="nanotabs"><div id="ichi'.time().'">

HTML:

??? I dont understand where you got the '.time().' ???

 

time is a unix timestamp. you can create random numbers this way. I left out the double quotes

define("PRT11_TARGET", "<div class=\"nanotabs\"><div id=\"ichi".time()."\">");

Code (markup):