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IBM DB2 Функции
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# db2_get_option

(PECL ibm_db2 >= 1.6.0)

db2_get_option — Retrieves an option value for a statement resource or a connection resource

### Описание

string db2_get_option ( resource `$resource` , string `$option` )

Retrieves the value of a specified option value for a statement resource or a connection resource.

### Список параметров

`resource`

  A valid statement resource as returned from db2_prepare() or a valid connection resource as returned from db2_connect() or db2_pconnect().

`option`

  A valid statement or connection options. The following new options are available as of ibm_db2 version 1.6.0. They provide useful tracking information that can be set during execution with db2_get_option().

  > Замечание: Note
  > Prior versions of ibm_db2 do not support these new options.
  > When the value in each option is being set, some servers might not handle the entire length provided and might truncate the value.
  > To ensure that the data specified in each option is converted correctly when transmitted to a host system, use only the characters A through Z, 0 through 9, and the underscore (_) or period (.).

  `userid`

    SQL_ATTR_INFO_USERID - A pointer to a null-terminated character string used to identify the client user ID sent to the host database server when using DB2 Connect.

    > Замечание: Note
    > DB2 for z/OS and OS/390 servers support up to a length of 16 characters. This user-id is not to be confused with the authentication user-id, it is for identification purposes only and is not used for any authorization.

  `acctstr`

    SQL_ATTR_INFO_ACCTSTR - A pointer to a null-terminated character string used to identify the client accounting string sent to the host database server when using DB2 Connect.

    > Замечание: Note
    > DB2 for z/OS and OS/390 servers support up to a length of 200 characters.

  `applname`

    SQL_ATTR_INFO_APPLNAME - A pointer to a null-terminated character string used to identify the client application name sent to the host database server when using DB2 Connect.

    > Замечание: Note
    > DB2 for z/OS and OS/390 servers support up to a length of 32 characters.

  `wrkstnname`

    SQL_ATTR_INFO_WRKSTNNAME - A pointer to a null-terminated character string used to identify the client workstation name sent to the host database server when using DB2 Connect.

    > Замечание: Note
    > DB2 for z/OS and OS/390 servers support up to a length of 18 characters.

The following table specifies which options are compatible with the available resource types:

Resource-Parameter Matrix
Key | Value | Resource Type
--- | --- | ---
|  | Connection | Statement | Result Set
userid | SQL_ATTR_INFO_USERID | X | X | -
acctstr | SQL_ATTR_INFO_ACCTSTR | X | X | -
applname | SQL_ATTR_INFO_APPLNAME | X | X | -
wrkstnname | SQL_ATTR_INFO_WRKSTNNAME | X | X | -

### Возвращаемые значения

Returns the current setting of the connection attribute provided on success or `FALSE` on failure.

### Примеры

Пример #1 Setting and retrieving parameters through a connection resource

`<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$user = 'db2inst1';
$password = 'ibmdb2';
/* Obtain Connection Resource */
$conn = db2_connect($database, $user, $password);
echo "Client attributes passed through connection string:\n";
/* Create the associative options array with valid key-value pairs */
/* Assign the attributes through connection string */
/* Access the options specified */
$options1 = array('userid' => 'db2inst1');
$conn1 = db2_connect($database, $user, $password, $options1);
$val = db2_get_option($conn1, 'userid');
echo $val . "\n";
$options2 = array('acctstr' => 'account');
$conn2 = db2_connect($database, $user, $password, $options2);
$val = db2_get_option($conn2, 'acctstr');
echo $val . "\n";
$options3 = array('applname' => 'myapp');
$conn3 = db2_connect($database, $user, $password, $options3);
$val = db2_get_option($conn3, 'applname');
echo $val . "\n";
$options4 = array('wrkstnname' => 'workstation');
$conn4 = db2_connect($database, $user, $password, $options4);
$val = db2_get_option($conn4, 'wrkstnname');
echo $val . "\n";
echo "Client attributes passed post-connection:\n";
/* Create the associative options array with valid key-value pairs */
/* Assign the attributes after a connection is made */
/* Access the options specified */
$options5 = array('userid' => 'db2inst1');
$conn5 = db2_connect($database, $user, $password);
$rc = db2_set_option($conn5, $options5, 1);
$val = db2_get_option($conn5, 'userid');
echo $val . "\n";
$options6 = array('acctstr' => 'account');
$conn6 = db2_connect($database, $user, $password);
$rc = db2_set_option($conn6, $options6, 1);
$val = db2_get_option($conn6, 'acctstr');
echo $val . "\n";
$options7 = array('applname' => 'myapp');
$conn7 = db2_connect($database, $user, $password);
$rc = db2_set_option($conn7, $options7, 1);
$val = db2_get_option($conn7, 'applname');
echo $val . "\n";
$options8 = array('wrkstnname' => 'workstation');
$conn8 = db2_connect($database, $user, $password);
$rc = db2_set_option($conn8, $options8, 1);
$val = db2_get_option($conn8, 'wrkstnname');
echo $val . "\n";
?>`

Результат выполнения данного примера:

    Client attributes passed through connection string:
    db2inst1
    account
    myapp
    workstation
    Client attributes passed post-connection:
    db2inst1
    account
    myapp
    workstation

### Смотрите также

- db2_connect() - Returns a connection to a database
- db2_cursor_type() - Returns the cursor type used by a statement resource
- db2_exec() - Executes an SQL statement directly
- db2_set_option() - Set options for connection or statement resources
- db2_pconnect() - Returns a persistent connection to a database
- db2_prepare() - Prepares an SQL statement to be executed

db2_free_stmt
db2_last_insert_id
IBM DB2 Функции
PHP Manual