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CM52 series products are UWB+GNSS indoor and outdoor integrated positioning module solutions independently for indoor and outdoor fusion positioning market, including CM503B base station module and CM522T tag module, which supports the Channel 9 (7987.2MHz) frequency point required by the latest Chinese regulations by default.
SPV30系列是一颗专注于低功耗的离线人机交互的智能MCU，待机功耗小于20uA,可语音唤醒待机功耗小于700uA,工作功耗低至20mA,广泛应用于对功耗有要求的产品，如TWS、智能穿戴、单火线开关等应用。
*/ public function disconnect() { // Close the connection. if (\is_callable([$this->connection, 'close'])) { $this->connection->close(); } parent::disconnect(); } */ public function disconnect() { // Close the connection. if (\is_callable([$this->connection, 'close'])) { $this->connection->close(); } parent::disconnect(); } * * @since 2.0.0 */ public function __destruct() { $this->disconnect(); } /** * Alter database's character set. *|
Error
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Error:
mysqli object is already closed
at /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318
at mysqli->close()
(/var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318)
at Joomla\Database\Mysqli\MysqliDriver->disconnect()
(/var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php:496)
at Joomla\Database\DatabaseDriver->__destruct()
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