host = $host; $this->dbUser = $dbUser; $this->dbPass = $dbPass; $this->dbName = $dbName; $this->connectToDb(); } /** * Establishes connection to MySQL and selects a database * @return void * @access private */ function connectToDb() { // Make connection to MySQL server if (!$this->dbConn = @mysql_connect($this->host, $this->dbUser, $this->dbPass)) { trigger_error('Could not connect to server'); $this->connectError = true; // Select database } else if (!@mysql_select_db($this->dbName,$this->dbConn)) { trigger_error('Could not select database'); $this->connectError = true; } } /** * Checks for MySQL errors * @return boolean * @access public */ function isError() { if ($this->connectError) { return true; } $error = mysql_error($this->dbConn); if (empty($error)) { return false; } else { return true; } } /** * Returns an instance of MySQLResult to fetch rows with * @param $sql string the database query to run * @return MySQLResult * @access public */ function &query($sql) { if (!$queryResource = mysql_query($sql, $this->dbConn)) { trigger_error('Query failed: ' . mysql_error($this->dbConn) . ' SQL: ' . $sql); } else { return new MySQLResult($this, $queryResource); } } } /** * MySQLResult Data Fetching Class * @access public * @package SPLIB */ class MySQLResult { /** * Instance of MySQL providing database connection * @access private * @var MySQL */ var $mysql; /** * Query resource * @access private * @var resource */ var $query; /** * MySQLResult constructor * @param object mysql (instance of MySQL class) * @param resource query (MySQL query resource) * @access public */ function MySQLResult(&$mysql, $query) { $this->mysql = &$mysql; $this->query = $query; } /** * Fetches a row from the result * @return array * @access public */ function fetch() { if ($row = mysql_fetch_array($this->query, MYSQL_ASSOC)) { return $row; } else if ( $this->size() > 0 ) { mysql_data_seek($this->query, 0); return false; } else { return false; } } /** * Returns the number of rows selected * @return int * @access public */ function size () { return mysql_num_rows($this->query); } /** * Returns the ID of the last row inserted * @return int * @access public */ function insertID () { return mysql_insert_id($this->mysql->dbConn); } /** * Checks for MySQL errors * @return boolean * @access public */ function isError() { return $this->mysql->isError(); } /** * Returns an instance of MySQLResult to fetch rows with * @param $sql string the database query to run * @return MySQLResult * @access public */ } ?> Chinese Coin - K'ai YŁan T'ung Pao - Birmingham Museums & Art Gallery Information Centre
             
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Chinese Coin - K'ai YŁan T'ung Pao

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© Birmingham Museums and Art Gallery

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Basic Information

Accession Number:1938C413.93
Collection:Antiquities - Ancient & Mediaeval Coins
Date:618 AD - 841 AD

Notes

The founder of the Tang dynasty, Emperor Gaozu, introduced this new coin. The characters read kaiyuan tongbao ('new beginning, circulating treasure'). Over the next couple of hundred years enormous quantities of these coins were made by casting them in clay moulds. According to legend, the mark on the reverse was the impression left in a mould by a fingernail of the famous concubine Yang Guifei.

Presented by Hilderic Friend, 1938.

Further Information

Production Period:T'ang Dynasty
Material(s):Copper alloy
Denomination:Cash
Currency:China
Place of Origin:China

Associated People

Associated Places

Dimensions

Diameter:25 mm