/**
* 更新数据
* @access public
* @param string $table 表名
* @param array $data 数据
* @param mixed $condition 条件(数组或字符串)
* @param bool $unbuffered 是否不获取/缓存结果 默认false(获取/缓存结果 )
* @param bool $low_priority 是否延迟 默认为false
* @return mixed
*/
function update($table, $data, $condition, $unbuffered = false, $low_priority = false)
{
$sql = FDB::implodeFieldValue($data);
$cmd = "UPDATE " . ($low_priority ? 'LOW_PRIORITY' : '');
$table = FDB::table($table);
$where = '';
if (empty($condition)) {
$where = '1';
} elseif (is_array($condition)) {
$where = FDB::implodeFieldValue($condition, ' AND ');
} else {
$where = $condition;
}
$res = FDB::query("{$cmd} {$table} SET {$sql} WHERE {$where}", $unbuffered ? 'UNBUFFERED' : '');
return $res;
}
