<?php

function errorMsg($error_text){

	echo '<b><font color="red">ERROR :</font> '.$error_text.'</b>';
	exit();

}

function requirement_checker(){

	if(!is_writable('data/')){ errorMsg('Oh no! You have make a boo boo...! Please make sure the "data" directory is writable. Click <a href="http://ifoto.ireans.com/faq" target="_blank">here</a> for more info.'); }

	if(function_exists("gd_info")){ $info=gd_info();
		if(!strstr($info['GD Version'],"2.")){errorMsg('Please make sure you PHP compiled with GD2. Click <a href="http://ifoto.ireans.com/faq" target="_blank">here</a> for more information.');}
 	}else{
 		errorMsg('Please make sure you PHP compiled with GD2. Click <a href="http://ifoto.ireans.com/faq" target="_blank">here</a> for more information.');
 	}

}

function get_param($get_param){

	if(@$return_filtered = $_GET[$get_param]){

		$return_filtered = str_replace('<','',$return_filtered);
		$return_filtered = str_replace('>','',$return_filtered);
		$return_filtered = str_replace('"','',$return_filtered);
		$return_filtered = str_replace("'",'',$return_filtered);
		$return_filtered = str_replace(";",' ',$return_filtered);
		$return_filtered = str_replace(":",' ',$return_filtered);
		$return_filtered = stripslashes($return_filtered);

		return $return_filtered;

	}else{
		return false;
	}
}

function post_param($get_param){

	if(@$return_filtered = $_POST[$get_param]){

		$return_filtered = str_replace('<','',$return_filtered);
		$return_filtered = str_replace('>','',$return_filtered);
		$return_filtered = str_replace('"','',$return_filtered);
		$return_filtered = str_replace("'",'',$return_filtered);
		$return_filtered = str_replace(";",' ',$return_filtered);
		$return_filtered = str_replace(":",' ',$return_filtered);
		$return_filtered = stripslashes($return_filtered);

		return $return_filtered;

	}else{
		return false;
	}
}

function ClearDirectory($path){
   if($dir_handle = opendir($path)){
       while($file = readdir($dir_handle)){
           if($file == "." || $file == ".."){
               if(!@unlink($path."/".$file)){
                   continue;
               }
           }else{
               @unlink($path."/".$file);
           }
       }
       closedir($dir_handle);
       return true;
// all files deleted
   }else{
       return false;
// directory doesn?t exist
   }
}

function RemoveDirectory($path){
   if(ClearDirectory($path)){
       if(rmdir($path)){
           return true;
// directory removed
       }else{
           return false;
// directory couldn?t removed
       }
   }else{
       return false;
// no empty directory
   }
}

function directoryToArray($directory, $recursive) {
	$array_items = array();
	if ($handle = opendir($directory)) {
		while (false !== ($file = readdir($handle))) {
			if ($file != "." && $file != "..") {
				if (is_dir($directory. "/" . $file)) {
					if($recursive) {
						$array_items = array_merge($array_items, directoryToArray($directory. "/" . $file, $recursive));
					}
					$file = $directory . "/" . $file;
					$array_items[] = preg_replace("/\/\//si", "/", $file);
				} else {
					$file = $directory . "/" . $file;
					$array_items[] = preg_replace("/\/\//si", "/", $file);
				}
			}
		}
		closedir($handle);
	}
	return $array_items;
}

function readDirectory($current_dir = '', $exclude_dir = false){

	$image_list_arr = array();

    $opendir = 'gallery/'.$current_dir;
    if ($handle = opendir($opendir)) {
        while (false !== ($file = readdir($handle))) {

            if (($file != '.' AND $file != '..') AND ((substr(strtolower($file),-3) == 'jpg' || substr(strtolower($file),-3) == 'gif' || substr(strtolower($file),-3) == 'png') OR (is_dir($opendir . '/' . $file) AND !$exclude_dir) )) {

            	$file_original_name = $file;

				if(is_dir($opendir . '/' . $file_original_name)){

					$item_type = 'dir';
					$file_title_return = $file_original_name;
					$file = $file_original_name;

					$file_width	= '';
					$file_height = '';
					$the_thumbnail = '';
					$file_size = '';
					$file_modified = '';

				}else{

					$item_type = 'image';
					$file_title = substr($file,0,-4);
					list($file_width, $file_height, $type, $attr) = getimagesize('gallery/'.$current_dir.'/'.$file);

					if(is_file('data/thumbdata_'.base64_encode($current_dir . ']|[' . $file . ']|[' . filectime('gallery/'.$current_dir.'/'.$file)).'.jpg')){
						$the_thumbnail = 'data/thumbdata_'.base64_encode($current_dir . ']|[' . $file . ']|[' . filectime('gallery/'.$current_dir.'/'.$file)).'.jpg';
					}else{
						$the_thumbnail = 'img_holder.jpg';
					}

					if(STRIP_SORT_NUMBER AND (is_numeric(substr($file_title,0,1))) AND (substr($file_title,1,1) == '_')){
						$file_title_return = substr($file_title,2);
					}else{
						$file_title_return = $file_title;
					}

					$file_title_return = str_replace('_', ' ', $file_title_return);

					$file_size = filesize('gallery/'.$current_dir.'/'.$file);
					$file_modified = filectime('gallery/'.$current_dir.'/'.$file);
				}

            	$image_list_arr[] = array(
            		'id' => md5($current_dir.$file.time()),
            		'dir' => $current_dir,
            		'filename' => $file,
            		'title' => $file_title_return,
            		'thumb' => $the_thumbnail,
            		'width'=> $file_width,
            		'height' => $file_height,
            		'filesize' => $file_size,
            		'modified' => $file_modified,
            		'item_type' => $item_type);

            }
        }
        closedir($handle);

		return $image_list_arr;

    }else{

    	return false;

    }

}

function multi_array_sort($array='', $key='', $order='asc')
{
	if($array AND $key){

		foreach ($array as $i => $k) {
			$sort_values[$i] = $array[$i][$key];
		}
		if($order == 'desc'){
			rsort ($sort_values);
		}else{
			asort ($sort_values);
		}
		reset ($sort_values);
		while (list ($arr_key, $arr_val) = each ($sort_values)) {
			$sorted_arr[] = $array[$arr_key];
		}
		return $sorted_arr;

	}else{
		return false;
	}

}

function multi_array_search($search_value, $the_array)
{
   if (is_array($the_array))
   {
       foreach ($the_array as $key => $value)
       {
           $result = multi_array_search($search_value, $value);
           if (is_array($result))
           {
               $return = $result;
               array_unshift($return, $key);
               return $return;
           }
           elseif ($result == true)
           {
               $return[] = $key;
               return $return;
           }
       }
       return false;
   }
   else
   {
       if ($search_value == $the_array)
       {
           return true;
       }
       else return false;
   }
}

/* for debug purpose */
function pre($sting_to_pre = ''){

    if($sting_to_pre){
        echo '<pre>';
        print_r($sting_to_pre);
        echo '</pre>';
    }
}

?>