odbc_data_source

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

odbc_data_sourceReturns information about available DSNs

说明

odbc_data_source ( resource $connection_id , int $fetch_type ) : array

This function will return the list of available DSN (after calling it several times).

参数

connection_id

ODBC 连接标识符,详见 odbc_connect()

fetch_type

The fetch_type can be one of two constant types: SQL_FETCH_FIRST, SQL_FETCH_NEXT. Use SQL_FETCH_FIRST the first time this function is called, thereafter use the SQL_FETCH_NEXT.

返回值

Returns FALSE on error, an array upon success, and NULL after fetching the last available DSN.

范例

Example #1 List available DSNs

<?php
$conn 
odbc_connect('dsn''user''pass');
$dsn_info odbc_data_source($connSQL_FETCH_FIRST);
while (
$dsn_info) {
    
print_r($dsn_info);
    
$dsn_info odbc_data_source($connSQL_FETCH_NEXT);
}
?>

以上例程的输出类似于:

Array
(
    [server] => dsn
    [description] => ODBC Driver 17 for SQL Server
)
Array
(
    [server] => other_dsn
    [description] => Microsoft Access Driver (*.mdb, *.accdb)
)
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User Contributed Notes 2 notes

up
1
angelo [at] spaceblue [dot] com
17 years ago
// Example usage:

// Connect to a ODBC database that exists on your system
$link = odbc_connect("some_dsn_name", "user", "password") or die(odbc_errormsg() );

$result = @odbc_data_source( $link, SQL_FETCH_FIRST );
while($result)
{
    echo "DSN: " . $result['server'] . " - " . $result['description'] . "<br>\n";
    $result = @odbc_data_source( $link, SQL_FETCH_NEXT );
}

odbc_close($link);
up
-1
critmas at hotmail dot com
15 years ago
Thank you Angelo for point out the code.  Though the function doesn't really do what it is supposed to.  It returns the entire list of ODBC DSNs.
If you really are looking to get the server type based on just the ODBC, username and password in an environment where the application needs to be aware of different types of databases, use the following code:

$link2 = odbc_connect($dsn , $DBUser, $DBPwd ) or die(odbc_errormsg() );
$result = @odbc_data_source( $link2, SQL_FETCH_FIRST );
while($result)
{
    if (strtolower($dsn) == strtolower($result['server'])) {
        echo $result['description'] . "<br>\n";
        break;
    }
       else
        $result = @odbc_data_source( $link2, SQL_FETCH_NEXT );
}

odbc_close($link2);

// Hope it saves your precious time
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