/**
* 打印函数, 打印变量(数据)
*/
function __print()
{
$_args = func_get_args();
//获取函数的参数
if (count($_args) < 1) {
\herosphp\core\Debug::appendMessage('必须为myprint()参数');
trigger_error('必须为myprint()参数');
return;
}
echo '<div style="width:100%;text-align:left"><pre>';
//循环输出参数
foreach ($_args as $_a) {
if (is_array($_a)) {
print_r($_a);
echo '<br />';
} else {
if (is_string($_a)) {
echo $_a . '<br />';
} else {
var_dump($_a);
echo '<br />';
}
}
}
echo '</pre></div>';
}
/**
* @see ICache::get()
*/
public function get($key, $expire = null)
{
if ($expire !== null) {
$this->configs['expire'] = $expire;
}
$cacheFile = $this->getCacheFile($key);
//缓存文件不存在
if (!file_exists($cacheFile)) {
if (APP_DEBUG) {
Debug::appendMessage("缓存文件 {$cacheFile} 不存在.");
}
return false;
}
//缓存过期, 若$expire = 0 则表示缓存永不过期
if ($this->configs['expire'] > 0 && time() > filemtime($cacheFile) + $this->configs['expire']) {
if (APP_DEBUG) {
Debug::appendMessage("缓存文件 {$cacheFile} 已经过期.");
}
return false;
} else {
$content = file_get_contents($cacheFile);
if (ArrayUtils::isSerializedArray($content)) {
return unserialize($content);
} else {
return $content;
}
}
}
/**
* 执行一条SQL语句，不同类型的SQL语句发送到不同的服务器去执行。
* 1. 读的SQL语句发送到读服务器
* 2. 写入SQL语句发送到写服务器
* 3. 此方法将抛出异常
* @see \herosphp\db\interfaces\ICusterDB::query()
* @throws DBException
*/
public function query($_query)
{
if ($this->isReadSQL($_query)) {
/* 读取数据操作 */
$_db = $this->selectReadServer();
} else {
/* 写入数据操作 */
$_db = $this->selectWriteServer();
}
try {
$_result = $_db->query($_query);
} catch (PDOException $e) {
$_exception = new DBException("SQL错误!" . $e->getMessage());
$_exception->setCode($e->getCode());
$_exception->setQuery($_query);
__print($_exception);
die;
}
if (APP_DEBUG) {
Debug::appendMessage($_query, 'sql');
//添加调试信息
}
return $_result;
}
/**
* @see Idb::excute()
* @param string $sql
* @return \PDOStatement
* @throws DBException
*/
public function excute($sql)
{
if ($this->link == null) {
$this->connect();
}
if (DB_ESCAPE) {
$sql = addslashes($sql);
}
try {
$result = $this->link->query($sql);
} catch (PDOException $e) {
$exception = new DBException("SQL错误:" . $e->getMessage());
$exception->setCode($e->getCode());
$exception->setQuery($sql);
if (APP_DEBUG) {
__print($sql);
}
throw $exception;
}
Debug::appendMessage($sql, 'sql');
//添加调试信息
return $result;
}
/**
* @see \herosphp\db\interfaces\Idb::query()
* @throws DBException
*/
public function query($_query)
{
if ($this->link == null) {
$this->connect();
}
try {
$_result = $this->link->query($_query);
} catch (PDOException $e) {
$_exception = new DBException("SQL错误:" . $e->getMessage());
$_exception->setCode($e->getCode());
$_exception->setQuery($_query);
if (APP_DEBUG) {
__print($_exception);
die;
}
}
if (APP_DEBUG) {
Debug::appendMessage($_query, 'sql');
//添加调试信息
}
return $_result;
}
