Last updated: Fri, 22 Aug 2008

ibase_connect

(PHP 4, PHP 5)

ibase_connect — Abrir una conexión con una base de datos InterBase

Descripción

resource ibase_connect ([ string $base_de_datos [, string $nombre_usuario [, string $contrasenya [, string $juego_caracteres [, int $bufers [, int $dialecto [, string $rol [, int $sincronizar ]]]]]]]] )

Establece una conexión con un servidor 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().

Lista de parámetros

base_de_datos: El argumento base_de_datos 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) o 'nombre_host@' (IPX/SPX), dependiendo del protocolo usado.
nombre_usuario: El nombre de usuario. Puede ser definido mediante la directiva de php.ini ibase.default_user.
contrasenya: La contraseña para nombre_usuario . Puede ser definida con la directiva de php.ini ibase.default_password.
juego_caracteres: juego_caracteres es el juego de caracteres predeterminado para una base de datos.
bufers: 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.
dialecto: dialecto selecciona el dialecto SQL predeterminado para cualquier sentencia ejecutada en la conexión, y su valor por omisión es el más alto soportado por las bibliotecas cliente. Este parámetro es funcional únicamente con InterBase 6 y versiones posteriores.
rol: Funcional únicamente con InterBase 5 y versiones posteriores.
sincronizar

Valores retornados

Devuelve un identificador de enlace InterBase en caso de éxito, o FALSE si ocurre un error.

Errors/Exceptions

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).

Registro de cambios

Versión	Descripción
4.0.0	Fueron agregados los parámetros `bufers` , `dialecto` y `rol`

Ejemplos

Example #1 Ejemplo de ibase_connect()


<?php
$host = 'localhost:/ruta/a/su/base_de_datos.gdb';

$gestor_db = ibase_connect($host, $nombre_usuario, $contrasenya);
$sentencia = 'SELECT * FROM nombre_tabla';
$gestor_sent = ibase_query($gestor_db, $sentencia);
while ($fila = ibase_fetch_object($gestor_sent)) {
    echo $fila->email, "\n";
}
ibase_free_result($gestor_sent);
ibase_close($gestor_db);
?>

Ver también

ibase_db_info

ibase_commit

Last updated: Fri, 22 Aug 2008

add a note User Contributed Notes
ibase_connect

kgbfernando at yahoo dot com dot br
22-Jan-2008 03:25


If you have this problem:



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



This is because php is deployed with old client library gds32.dll.



To resolve this, update this library to Firebird latest version of fbclient.dll, of course, rename it to gds32.dll and overwrite into php dir.



Or simply don't use localhost ou 127.0.0.1, use computer name.

fb dot bird at gmail dot com
10-Aug-2007 11:32


Remember for different locations

of php.ini file:



..\xampp\php\php.ini 

..\xampp\apache\bin\php.ini

..\xampp\php\php4\php.ini



Please do not confuse this

and know location _loaded_ *.ini-file!

Łukasz Wojciechowski
11-Feb-2007 12:06


ag at dividi dot de wrote:

"

The solution is to insert the line

gds_db    3050/tcp    #firebird Database

into the windows services file %WINDIR%\\system32\\drivers\\etc\\services

"



...but it is very important to hit ENTER at the end of this line:

gds_db    3050/tcp    #firebird Database



I spent 2 hours before I discover this - I love Windows ;-)



--

greetings

ag at dividi dot de
20-Sep-2005 02:07


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
05-Dec-2004 02:02


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());



  $sql  = "SELECT PO_NUMBER, ORDER_STATUS, ITEM_TYPE FROM SALES"; 

  $cursor = ibase_query($sql);

  $row_array = ibase_fetch_row($cursor);

   

  print_r($row_array);



  ibase_free_result($cursor);

  ibase_close($db);



Also you CAN get away with the following connection string:

ibase_connect('/opt/firebird/examples/employee.fdb', 'sysdba', 'yourpass')

sam at intranex.ru
05-Aug-2004 01:08


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 :)

simon at thorndancer dot com
15-Jun-2003 08:22


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. 

eg:

        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.

anthony at trams dot com
21-Nov-2000 04:44


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.








Anthony

add a note

ibase_db_info

ibase_commit

Last updated: Fri, 22 Aug 2008