(PHP 5, PHP 7 < 7.4.0)

ibase_connectAbrir una conexión a una base de datos


    string $database = ?,
    string $username = ?,
    string $password = ?,
    string $charset = ?,
    int $buffers = ?,
    int $dialect = ?,
    string $role = ?,
    int $sync = ?
): resource

Establece una conexión con un servidor Firebird/InterBase.

En case de que se haga una segunda llamada a ibase_connect() con los mismos argumentos, no se establecerá un nuevo enlace, en cambio, el identificador de enlace previamente abierto será devuelto. El enlace al servidor será cerrado apenas finalice la ejecución del script, a menos que sea cerrado prematuramente llamando explícitamente ibase_close().



El argumento database debe ser una ruta válida al archivo de base de datos en el servidor en el que reside. Si el servidor no es local, debe ser precedido por 'nombre_host:' (TCP/IP), '//nombre_host/' (NetBEUI), dependiendo del protocolo de conexión usado.


El nombre de usuario. Puede ser definido mediante la directiva de php.ini ibase.default_user.


La contraseña para username. Puede ser definida con la directiva de php.ini ibase.default_password.


charset es el juego de caracteres predeterminado para una base de datos.


bufers es el número de búfers de base de datos a reservar para el caché en el lado del servidor. Si es 0 o se omite, el servidor elige su propio valor predeterminado.


dialect selecciona el dialecto SQL predeterminado para cualquier sentencia ejecutada en la conexión, y su valor por omisión es el más alto admitido por las bibliotecas cliente.


Funcional únicamente con InterBase 5 y versiones posteriores.


Valores devueltos

Devuelve un identificador de enlace Firebird/InterBase en caso de éxito, o false si ocurre un error.


Si obtiene un error del tipo "arithmetic exception, numeric overflow, or string truncation. Cannot transliterate character between character sets" (esto ocurre cuando intenta usar algún caracter con acentos) cuando usa esta extensión después de llamar ibase_query(), debe definir el juego de caracteres (puede ser ISO8859_1 o su juego de caracteres actual).


Ejemplo #1 Ejemplo de ibase_connect()


$gestor_db ibase_connect($host$nombre_usuario$contrasenya);
$sentencia 'SELECT * FROM nombre_tabla';
$gestor_sent ibase_query($gestor_db$sentencia);
while (
$fila ibase_fetch_object($gestor_sent)) {

Ver también

  • ibase_pconnect() - Abrir una conexión persistente con una base de datos InterBase
  • ibase_close() - Cerrar una conexión con una base de datos InterBase

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User Contributed Notes 7 notes

anthony at trams dot com
21 years ago
If you get a message like: 'Dynamic SQL Error SQL error code = -901 feature is not supported', this may be caused by InterBASE client 6.01 accessing a server running 5.x.

Make sure the dialect value is set to '1', like the following:

ibase_connect ('localhost:/usr/db/db.gdb', 'SYSDBA', 'masterkey', 'ISO8859_1', '100', '1' ) ;

That last value is the dialect, but you need the two preceding also, do avoid errors.

simon at thorndancer dot com
18 years ago
I found it difficult to get anything working using the current documentation.
While logic would suggest that the format in the docs should work (being based on all the
syntax of other standard database access functions) I had problem after problem. Finally I
found some comments on a newgroup that helped, and this is the result.

This is actual production code (not a mere example). It works.
Don't ask me why it is so different from the official docs.

if ( ibase_connect( $db_filespec,$db_user,$db_pass_word) )
    $query  = "SELECT c.id, c.title, c.description ";   
    $query .= "FROM collections c ";  
    $query .= "WHERE (c.id = $page_id) ";                                      

    $result = ibase_query( $query );

    $row_array = ibase_fetch_row($result);

    $row_fetched = !empty($row_array);

    if ($row_fetched)     
       // Extract the row into variables

        $collection_id   = $row_array[0];           
       $edit_title      = $row_array[1];           
       $edit_desc       = $row_array[2];           

       // Standardise the record contents

        $collection_id   = $collection_id + 0;      // force type to numeric

    // Wrap up the database side of things

     ibase_commit();     // note parenthesis but no parameters.

     ibase_close;        // note total lack of parenthesis and parameters !
You'll notice that there is no reference to a database handle in this code.
It seems to be implicit when dealing with interbase functions. Certainly, I couldn't
get the code to work when using it explicitly. This makes the documentation
very hard to work with, and any reference to a handle needs to be ignored.

Important: ibase_close doesn't work for me if I put parenthesis after it.
        ibase_close;        // works
        ibase_close();      // fails
        ibase_close($db);   // fails
Note: the line "if ($row_fetched)" could be replaced with "while ($row_fetched)"
if you need to process more than one record.

All that said, Interbase is a fantastic database to work with and IMHO a much
better choice than something like PostgreSQL if you need to move up from MySQL
to something more industrial strength. Just be sure to RTFM.
fwrk at bk dot ru
7 years ago
If you want to connect to interbase server runned on custom port (not default port 3050), you can specify it in "database" parameter in this way: 'hostname/port:' (TCP/IP with custom port).
$dbh = ibase_connect('example.com/11099:dbalias', $username, $password);
$dbh = ibase_connect('example.com/11099:var/data/myibase.fdb', $username, $password);
$dbh = ibase_connect('example.com/11099:C:\\data\\mywinibase.fdb', $username, $password);
ag at dividi dot de
16 years ago
With php5 on Windows i couldnt connect to a firebird database with following error :

Warning: ibase_connect(): Unable to complete network request to host "localhost"
. Failed to locate host machine. Undefined service gds_db/tcp.  in C:\\wamp\\php\\ibase.php on line 5

the connect command was "$dbh = ibase_connect ("localhost:path_to_file.fdb", $username, $password);"

The solution is to insert the line
gds_db    3050/tcp    #firebird Database
into the windows services file %WINDIR%\\system32\\drivers\\etc\\services
Robert Silvia
17 years ago
Just to update Simon's note...

Things must have been fixed since Simon wrote that note.
With PHP5 the following example works flawlessly:

$strconnect = 'localhost:/opt/firebird/examples/employee.fdb';

if (!($db=ibase_connect($strconnect, 'sysdba', 'yourpass', 'ISO8859_1', 0, 1)))
    die('Could not connect: ' .  ibase_errmsg());

  $cursor = ibase_query($sql);
  $row_array = ibase_fetch_row($cursor);


Also you CAN get away with the following connection string:
ibase_connect('/opt/firebird/examples/employee.fdb', 'sysdba', 'yourpass')
fb dot bird at gmail dot com
14 years ago
Remember for different locations
of php.ini file:


Please do not confuse this
and know location _loaded_ *.ini-file!
sam at intranex.ru
17 years ago
If you get a sloooow work of ibase_connect on Win2003, try to update your FireBird to version 1.5 or above, and your InterBase to version 7.1. Or move back to Win2000 :)
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