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db2_get_option

(PECL ibm_db2 >= 1.6.0)

db2_get_optionRetrieves an option value for a statement resource or a connection resource

说明

string db2_get_option ( resource $resource , string $option )

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

参数

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() .

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.

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.

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.

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.

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 -

返回值

Returns the current setting of the connection attribute provided on success 或者在失败时返回 FALSE .

范例

Example #1 Setting and retrieving parameters through a connection resource

<?php

$database  'SAMPLE' ;
$user      'db2inst1' ;
$password  'ibmdb2' ;


$conn  db2_connect ( $database $user $password );

echo 
"Client attributes passed through connection string:\n" ;




$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" ;




$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" ;
?>

以上例程会输出:

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

参见

  • 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
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