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ramzes, function pre_str($str,$maxlen=''){
if($maxlen!='' AND mb_strlen($str,'utf-8')>$maxlen){
$str = mb_substr($str,0,$maxlen,'utf-8');
}
$str = htmlspecialchars(trim($str));
$str = preg_replace ("|[\r\n]+|si",'[br]',$str);
$str = str_replace("%","%", $str);
$str = str_replace("^","^", $str);
$str = str_replace("`","", $str);
$str = str_replace("@","@", $str);
$str = str_replace("$","$",$str);
$str = str_replace("\\","\", $str);
$str = str_replace("/\\\$/","$",$str);
$str = str_replace("\"",""",$str);
$str = str_replace("'","'",$str);
return $str;
}

function remove_str($str){
$str = str_replace('<br />', "\r\n", $str);
$str = str_replace('[br]', "\r\n", $str);
return $str;
}