Php/docs/mysqlnduhconnection.geterrorstring
MysqlndUhConnection::getErrorString
(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::getErrorString — Returns a string description of the last error
说明
public MysqlndUhConnection::getErrorString
( mysqlnd_connection $connection
) : string
Returns a string description of the last error.
参数
connection- Mysqlnd connection handle. Do not modify!
返回值
Error string for the most recent function call.
范例
MysqlndUhConnection::getErrorString() is not only executed after the invocation of a user space API call which maps directly to it but also called internally.
Example #1 MysqlndUhConnection::getErrorString() example
<?phpclass proxy extends MysqlndUhConnection { public function getErrorString($res) { printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true)); $ret = parent::getErrorString($res); printf("%s returns %s\n", __METHOD__, var_export($ret, true)); return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());printf("connect...\n");$mysqli = new mysqli("localhost", "root", "", "test");printf("query...\n");$mysqli->query("WILL_I_EVER_LEARN_SQL?");printf("errno...\n");var_dump($mysqli->error);printf("close...\n");$mysqli->close();?>
以上例程会输出：
connect... proxy::getErrorString(array ( 0 => NULL, )) proxy::getErrorString returns '' query... errno... proxy::getErrorString(array ( 0 => NULL, )) proxy::getErrorString returns 'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \'WILL_I_EVER_LEARN_SQL?\' at line 1' string(168) "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WILL_I_EVER_LEARN_SQL?' at line 1" close...
参见
- mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
- MysqlndUhConnection::getErrorNumber() - Returns the error code for the most recent function call
- mysqli_error() - Returns a string description of the last error
- mysql_error() - 返回上一个 MySQL 操作产生的文本错误信息
