function lib_json(&$ctag, &$refObj)
{
global $dsql, $sqlCt, $cfg_soft_lang;
$attlist = "url|";
FillAttsDefault($ctag->CAttribute->Items, $attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$Innertext = trim($ctag->GetInnerText());
if ($url == '' || $Innertext == '') {
return '';
}
$ctp = new DedeTagParse();
$ctp->SetNameSpace('field', '[', ']');
$ctp->LoadSource($Innertext);
$mcache = new MiniCache();
$GLOBALS['autoindex'] = 0;
$chash = md5($url);
if (!($row = $mcache->Get($chash))) {
$content = @file_get_contents($url);
$json = new Services_JSON(SERVICES_JSON_LOOSE_TYPE);
$row = $json->decode($content);
if ($cfg_soft_lang != 'utf-8') {
$row = AutoCharset($row, 'utf-8', 'gb2312');
}
$mcache->Save($chash, $row, $cache);
}
$revalue = "";
foreach ($row as $key => $value) {
$GLOBALS['autoindex']++;
foreach ($ctp->CTags as $tagid => $ctag) {
if ($ctag->GetName() == 'array') {
$ctp->Assign($tagid, $value);
} else {
if (!empty($value[$ctag->GetName()])) {
$ctp->Assign($tagid, $value[$ctag->GetName()]);
} else {
$ctp->Assign($tagid, "");
}
}
}
$revalue .= $ctp->GetResult();
}
return $revalue;
}
/**
* 私有化构造函数，防止外界实例化对象
*/
private function __construct()
{
parent::MiniCache();
}
/**
* ------------------------------------------------------
* Destroy the instance
* ------------------------------------------------------
*/
public function destroyInstance()
{
self::$_instance->_loaded = array();
self::$_instance = NULL;
}
public function testExpiration()
{
$durations = array(-1, 0, 1);
foreach ($durations as $duration) {
$cacheKey = 'exp' . $duration;
$mc = MiniCache::getInstance();
$mc->set($cacheKey, 'my test string', $duration);
$beforeExpiration = $mc->get($cacheKey);
if ($duration >= 0) {
sleep($duration + 1);
}
$mc->deleteExpired();
$afterExpiration = $mc->get($cacheKey);
if ($duration >= 0) {
$this->assertEquals($afterExpiration, FALSE);
} else {
$this->assertEquals($afterExpiration, $beforeExpiration);
}
}
$mc = MiniCache::getInstance();
$mc->delete('exp-1');
}