Accessing MDB file with PHP on CentOS machine - php

Question

I am trying to access a MDB file using PHP on a CentOS machine, preferably using PDO. I have installed the ODBC and pdo_odbc modules in PHP and restarted the the web server (Apache). I also installed mdbtools and unixODBC.
print_r(PDO::getAvailableDrivers());
Shows:
Array
(
[0] => mysql
[1] => odbc
[2] => pgsql
[3] => sqlite
)
I try to access the DBA file (which is saved locally) with this code:
try
{
$driver = "/usr/lib64/libmdbodbc.so.0";
$dbName = "/PATH/FILE.MDB";
if (!file_exists($dbName)) {
die("Could not find database file.");
}
$db = new PDO("odbc:DRIVER=$driver; DBQ=$dbName; Uid=; Pwd=;");
$sql = "SHOW TABLES";
$result = $db->query($sql);
$row = $result->fetch();
var_dump($row);
}
catch(Exception $e)
{
echo "\n\nEXCEPTION: $e\n\n";
}
And this outputs:
EXCEPTION: exception 'PDOException' with message 'SQLSTATE[IM002] SQLDriverConnect: 0 [unixODBC][Driver Manager]Data source name not found, and no default driver specified' in /PATH/odbctest.php:14
Stack trace:
#0 /PATH/odbctest.php(14): PDO->__construct('odbc:DRIVER=/us...')
#1 {main}
What do I need to change? What should I use as a driver name? I have been looking all over the place and all I find is a lot of really old stuff from the 2004 era, but a lot of the links have disappeared over the years. This is the most relevant StackOverflow question, but does not include any code: PDO Microsoft Access. I really only need to read from the file.
EDIT:
With some tinkering it seems that I now at least have PDO happy with the driver by correcting the odbcinst.ini file which now contains the following:
[MDBTools]
Description = MDBTools Driver
Driver64 = /usr/lib64/libmdbodbc.so.0
Setup = /usr/lib64/libmdbodbc.so.0
FileUsage = 1
UsageCount = 1
Unfortunately, I am still getting an error:
exception 'PDOException' with message 'SQLSTATE[08001] SQLDriverConnect: 1 [unixODBC]Could not find DSN in connect string' in /PATH/odbctest.php:15
Stack trace:
#0 /PATH/odbctest.php(15): PDO->__construct('odbc:Driver=MDB...')
#1 {main}
I am making the PDO call as follows:
$driver = "MDBTools";
$dbName = "/PATH/DATABASE.MDB";
$db = new PDO("odbc:Driver=$driver; DBQ=$dbName; Uid=; Pwd=;");
I tried adding the data source to the odbc.ini file even though I can't do this in the production version and am still getting the same error. I did find this which is interesting: DSN-less connection with PHP ODBC using MDBTools Driver. Any suggestions?

Answer 1

$driver = "MDBTools";
$dbName = "/PATH/DATABASE.MDB";
$db = new PDO("odbc:Driver=$driver;DBQ=$dbName", "", "");