我正在使用PHP ODBC写入Access数据库，但不会写入数据库

Question

I'm trying to use PHP/ODBC to connect to an access file. The problem is that I can read from the database but I can't write to it using the below:

$conn = odbc_connect('SKW-DB','','');
if (!$conn)
   {
    exit ("ODBC Connection Failed ". $conn);
   }
$stmt = "INSERT INTO PRODUCT (ProductCode, ProductName) VALUES ('TestCode', 'TestEntry')";
$result = odbc_exec ($conn,$stmt);
echo "Result1: ";
echo $result;

$result returns nothing. Again, I am able to read from the database, connectivity isn't an issue. I just can't write to it.

Answer 1

That's because you're simply ASSUMING the query can never fail. It did fail, and returned a boolean false. echo false literally prints out nothing.

Try this instead:

$result = odbc_exec($conn, $stmt);
if ($result === false ) {
   die(odbc_errormsg($conn));
}

And what you get back from odbc_exec() cannot be echoed out anyways. On success, it returns a statement handle, which is NOT something you can simply print out.

Answer 2

Sounds like you need a little more debugging code.

First, try var_dump ing the $result instead of echo ing it.

var_dump($result);

There's certain PHP variable types that echo can't/won't display.

Next -- chances are your query's causing an error of some sort, so try using the odbc error reporting functions after making your query

$result = odbc_exec ($conn,$stmt);
echo "Result1: ";
var_dump( $result );
if($result)
{
    var_dump( odbc_error($conn)    );    
    var_dump( odbc_errormsg($conn) );
}