<?php

/**
* @author alanrm82
* @copyright 2011
*/
if(!defined("CMSBalitbang")) {
die("<h1>Permission Denied</h1>You don't have permission to access the this page.{filter}");
}
function filter($text, $filter = "lcase ucase num space symbol enter tab", $exclude = "") {
$option = explode(" ", $filter);
$filter = "";
$len = count($option);
for($i=0; $i<$len; $i++) {
switch($option[$i]) {
case "lcase" :
$filter .= "abcdefghijklmnopqrstuvwxyz";
break;
case "ucase" :
$filter .= "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
break;
case "num" :
$filter .= "1234567890-.";
break;
case "space" :
$filter .= " ";
break;
case "symbol" :
$filter .= "!@#$%^&*()_+=[]{}:;,./?'".'"';
break;
case "enter" :
$filter .= chr(13).chr(10);
break;
case "tab" :
$filter .= " ";
break;
default :
$filter .= $option[$i];
break;
}
}
$len = strlen($exclude);
for($i=0; $i<$len; $i++) {
$filter = str_replace($exclude[$i],"",$filter);
}
$i = 0;
while($i < strlen($text)) {
if(strpos($filter, $text[$i]) === false) {
$text = str_replace($text[$i], "", $text);
} else {
$i++;
}
}
return $text;
}

?>