Generatic List Generator

[code]<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

function generate_list($resource, $options, $template) { if (is_object($resource)) $resource = get_object_vars($resource);

// Check options, and put to default if unset
if (!isset($options)) $options = array();
if (!isset($options['level']))                 $options['level'] = 0;
if (!isset($options['indent']))             $options['indent'] = '';
if (!isset($options['link']))                 $options['link'] = '';
if (!isset($options['ignore']))             $options['ignore'] = array();
if (!isset($options['template_head']))         $options['template_head'] = '';
if (!isset($options['template_foot']))         $options['template_foot'] = '';
if (!isset($options['use_top_wrapper']))    $options['use_top_wrapper'] = true;
if (!isset($options['alternate']))             $options['alternate'] = array();
if (!isset($options['current_alternate']))     $options['current_alternate'] = 0;
if (!isset($options['functions']))             $options['functions'] = array();

// create options for next level
$next_options = $options;
$next_options['level']++;

// instantiate output variable
$output = '';

// add the list header
if ($options['level'] > 0 or $options['use_top_wrapper']) $output = $options['template_head'];

// count the number of values in resource
$resource_count = count($resource);

// create the list
foreach($resource as $item)
{
    // create a temporary variable for each item
    $item_output = $template;
    
    // place the values in the item variable
    if (!is_array($item))
    {
        $item_output = preg_replace('/\{CONTENT\}/', $item, $item_output);
    }
    else
    {
        // check the ignore values
        if (count($options['ignore']) > 0)
        {
            foreach($options['ignore'] as $ignore => $ignore_value)
            {
                if (is_array($ignore_value))
                {
                    foreach ($ignore_value as $ignore_val_val)
                    {
                        if ($item[$ignore] == $ignore_val_val)
                        {
                            $item_output = '';
                        }
                    }
                }
                else
                {
                    if ($item[$ignore] == $ignore_value)
                    {
                        $item_output = '';
                    }
                }
            }
        }
        
        foreach ($item as $key => $value)
        {
            // if the value is an array, replace the first found instance of SUBS with a sublist
            if (!is_array($value))
            {
                $item_output = preg_replace('/\{'.strtoupper($key).'\}/', $value, $item_output);
            }
            else
            {
                if (empty($value)) $sublist = '';
                else $sublist = generate_list($value, $next_options, $template);
                if ($sublist != '') $sublist = $options['link'].$sublist;
                $item_output = preg_replace('/\{SUBS\}/', $sublist, $item_output, 1);
            }
        }
    }
    
    // check if any values were replaced, if not assume sublist, generate and continue
    if ($item_output == $template && is_array($item))
    {
        $item_output = generate_list($item, $next_options, $template);
        if ($resource_count > 1 && $item_output != '')
        {
            $item_output .= $options['link'];
            $resource_count--;
        }
        $output .= $item_output;
        continue;
    }
    
    // place the indent
    $item_output = preg_replace('/\{INDENT\}/', str_repeat($options['indent'], $options['level']), $item_output);
    
    // if there are methods set, replace their tags
    if (count($options['functions']) > 0)
    {
        foreach($options['functions'] as $function)
        {
            $ci =& get_instance();
            
            if (method_exists($ci->$function[1], $function[0]))
            {
                $replace_value = $ci->$function[1]->$function[0]($options['level'], $options['current_alternate']);
                $item_output = preg_replace('/\{'.strtoupper($function[0]).'\}/', $replace_value, $item_output);
            }
            elseif (function_exists($function[1]))
            {
                $replace_value = $function[0]($options['level'], $options['current_alternate']);
                $item_output = preg_replace('/\{'.$function[0].'\}/', $replace_value, $item_output);    
            }
        }
    }
    
    // place the alternation
    if (is_array($options['alternate']) && !empty($options['alternate']))
    {
        $alternate_max = count($options['alternate']);
        $alternate = $alternate_max;
        while($options['current_alternate'] % $alternate != 0 && $alternate > 0) $alternate--;
        $item_output = preg_replace('/\{ALTERNATE\}/', $options['alternate'][$alternate - 1], $item_output);
    }
    
    // link the items with the link only if it isn't the last item
    if ($resource_count > 1 && $item_output != '')
    {
        $item_output .= $options['link'];
    }
    
    // update the counters before next iteration
    $options['current_alternate']++;
    $resource_count--;
    
    // place the new item at the end of the current list
    $output .= $item_output;
    unset($item_output);
}

// close the list with the list footer
if ($options['level'] > 0 or $options['use_top_wrapper']) $output .= $options['template_foot'];

// ... and return the output
return $output;

}

/* End of file generate_list_helper.php / / Location: ./system/application/helpers/generate_list_helper.php */[/code]