Why cannot the source command be used?

Unable to import ??? {Code...} Note: the import package is correct:

Unable to import ???

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'source D:\Server\three\public\export.sql' at line 1

function ImportDB($dbh) {  $sql = 'source '.realpath('export.sql');  try {    $stmt = $dbh->prepare($sql);    var_dump($stmt->execute());    var_dump($stmt->errorInfo());  }  catch (PDOException $e) {    print $e->getMessage();  }}

Note: the import package is correct:

Reply content:

Unable to import ???

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'source D:\Server\three\public\export.sql' at line 1

function ImportDB($dbh) {  $sql = 'source '.realpath('export.sql');  try {    $stmt = $dbh->prepare($sql);    var_dump($stmt->execute());    var_dump($stmt->errorInfo());  }  catch (PDOException $e) {    print $e->getMessage();  }}

Note: the import package is correct:

execute()Only SQL statements can be executed, whileSOURCEHowevermysqlclientBut it is not an SQL statement, so d will fail to execute. we recommend that you directly use phpexecCommand

Which database should I use before import? I need to change the slash of the path to the backslash in cmd. I hope it will help you.