function & xpress_XML_serialize(&$data, $level = 0, $prior_key = NULL){
if($level == 0){ ob_start(); echo '<?xml version="1.0" ?>',"\n"; }
while(list($key, $value) = each($data))
if(!strpos($key, ' attr')) #if it's not an attribute
#we don't treat attributes by themselves, so for an empty element
# that has attributes you still need to set the element to NULL
if(is_array($value) and array_key_exists(0, $value)){
xpress_XML_serialize($value, $level, $key);
}else{
$tag = $prior_key ? $prior_key : $key;
echo str_repeat("\t", $level),'<',$tag;
if(array_key_exists("$key attr", $data)){ #if there's an attribute for this element
while(list($attr_name, $attr_value) = each($data["$key attr"]))
echo ' ',$attr_name,'="',htmlspecialchars($attr_value),'"';
reset($data["$key attr"]);
}
if(is_null($value)) echo " />\n";
elseif(!is_array($value)) echo '>',htmlspecialchars($value),"</$tag>\n";
else echo ">\n",xpress_XML_serialize($value, $level+1),str_repeat("\t", $level),"</$tag>\n";
}
reset($data);
if($level == 0){ $str = &ob_get_contents(); ob_end_clean(); return $str; }
}
function xpress_block_header_cash_write($mydirname,$block_header)
{
$xml = xpress_XML_serialize($block_header);
$xml_name = 'block_header.xml';
if (WPLANG == 'ja_EUC'){
$xml = str_replace('<?xml version="1.0" ?>', '<?xml version="1.0" encoding="EUC-JP" ?>' , $xml);
}
if(cache_is_writable())
xpress_cache_write($mydirname,$xml_name,$xml);
}
function xpress_block_cache_refresh($mydirname)
{
global $xoops_db;
$mid = get_xpress_modid();
// It is a block that needs cache arranged outside the module.
// Only the block arranged outside the module is detected here.
$newblocks = get_xoops_prefix() . "newblocks";
$block_module_link = get_xoops_prefix() . "block_module_link";
$sql = "SELECT * FROM {$newblocks} LEFT JOIN {$block_module_link} ON {$newblocks}.bid = {$block_module_link}.block_id ";
$sql .= "WHERE {$newblocks}.mid = {$mid} AND {$newblocks}.visible = 1 AND {$block_module_link}.module_id != {$mid} ";
$sql .= "GROUP BY {$newblocks}.bid";
$blocks = $xoops_db->get_results($sql);
require_once get_xpress_dir_path() . '/include/xpress_block_render.php';
foreach ($blocks as $block) {
$func_file = $block->func_file;
$call_theme_function_name = str_replace(".php", "", $func_file);
$inc_theme_file_name = str_replace(".php", "", $func_file) . '_theme.php';
$cache_title = str_replace(".php", "", $func_file);
$blockID = $block->bid;
$options = explode("|", $block->options);
$block_theme_file = get_block_file_path($mydirname, $inc_theme_file_name);
require_once $block_theme_file['file_path'];
$render = $call_theme_function_name($options);
//The block name and the called function name should be assumed to be the same name.
$render_array['block'] = $render;
$render_array['block']['options'] = $block->options;
if (!empty($block_theme_file['error'])) {
$render_array['block']['err_message'] = $block_theme_file['error'];
}
if (cache_is_writable()) {
if (xpress_block_cache_found($mydirname, $cache_title . $blockID)) {
$render_serialize = xpress_XML_serialize($render_array);
$render_md5 = md5($render_serialize);
$cache_serialize = xpress_cache_read($mydirname, $cache_title . $blockID . '.xml');
$cache_md5 = md5($cache_serialize);
if ($render_md5 != $cache_md5) {
xpress_block_cache_write($mydirname, $cache_title . $blockID, $render_array);
}
} else {
xpress_block_cache_write($mydirname, $cache_title . $blockID, $render_array);
}
}
}
}
