db2_server_info
Examples 3 and 4 should output 'Options Set Successfully.' This is because, only a single option's key/value is set incorrectly (other options are still correct), hence the function must return successfully. (Instead a PHP warning will most probably be issued).
db2_set_option
(PECL ibm_db2:1.0-1.5.1)
db2_set_option — Set options for connection or statement resources
Popis
bool db2_set_option ( resource $resource, array $options [, int $type] )Sets options for a statement resource or a connection resource. You cannot set options for result set resources.
Seznam parametrů
- resource
A valid statement resource as returned from db2_prepare() or a valid connection resource as returned from db2_connect() or db2_pconnect().
- options
An associative array containing valid statement or connection options. This parameter can be used to change autocommit values, cursor types (scrollable or forward), and to specify the case of the column names (lower, upper, or natural) that will appear in a result set.
- autocommit
Passing DB2_AUTOCOMMIT_ON turns autocommit on for the specified connection resource.
Passing DB2_AUTOCOMMIT_OFF turns autocommit off for the specified connection resource.
- cursor
Passing DB2_FORWARD_ONLY specifies a forward-only cursor for a statement resource. This is the default cursor type, and is supported by all database servers.
Passing DB2_SCROLLABLE specifies a scrollable cursor for a statement resource. Scrollable cursors enable result set rows to be accessed in non-sequential order, but are only supported by IBM DB2 Universal Database databases.
- binmode
Passing DB2_BINARY specifies that binary data will be returned as is. This is the default mode. This is the equivalent of setting ibm_db2.binmode=1 in php.ini.
Passing DB2_CONVERT specifies that binary data will be converted to hexadecimal encoding, and will be returned as such. This is the equivalent of setting ibm_db2.binmode=2 in php.ini.
Passing DB2_PASSTHRU specifies that binary data will be converted to NULL. This is the equivalent of setting ibm_db2.binmode=3 in php.ini.
- db2_attr_case
Passing DB2_CASE_LOWER specifies that column names of the result set are returned in lower case.
Passing DB2_CASE_UPPER specifies that column names of the result set are returned in upper case.
Passing DB2_CASE_NATURAL specifies that column names of the result set are returned in natural case.
The following new i5/OS options are available as of ibm_db2 version 1.5.1. Note: prior versions of ibm_db2 do not support these new i5 options.
- i5_fetch_only
DB2_I5_FETCH_ON - Cursors are read-only and cannot be used for positioned updates or deletes. This is the default unless SQL_ATTR_FOR_FETCH_ONLY environment has been set to SQL_FALSE.
DB2_I5_FETCH_OFF - Cursors can be used for positioned updates and deletes.
- type
An integer value that specifies the type of resource that was passed into the function. The type of resource and this value must correspond.
Passing 1 as the value specifies that a connection resource has been passed into the function.
Passing any integer not equal to 1 as the value specifies that a statement resource has been passed into the function.
The following table specifies which options are compatible with the available resource types:
Tabulka 105. Resource-Parameter Matrix
| Key | Value | Resource Type | ||
|---|---|---|---|---|
| Connection | Statement | Result Set | ||
| autocommit | DB2_AUTOCOMMIT_ON | X | - | - |
| autocommit | DB2_AUTOCOMMIT_OFF | X | - | - |
| cursor | DB2_SCROLLABLE | X | X | - |
| cursor | DB2_FORWARD_ONLY | X | X | - |
| binmode | DB2_BINARY | X | X | - |
| binmode | DB2_CONVERT | X | X | - |
| binmode | DB2_PASSTHRU | X | X | - |
| db2_attr_case | DB2_CASE_LOWER | X | X | - |
| db2_attr_case | DB2_CASE_UPPER | X | X | - |
| db2_attr_case | DB2_CASE_NATURAL | X | X | - |
| i5_fetch_only | DB2_I5_FETCH_ON | - | X | - |
| i5_fetch_only | DB2_I5_FETCH_OFF | - | X | - |
Návratové hodnoty
Vrací TRUE při úspěchu, FALSE při selhání.
Příklady
Příklad 742. Setting one parameter with a connection resource
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_ON);
/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);
/* Check if all options could be set correctly */
if($result)
{
echo 'Options Set Successfully';
}
else
{
echo 'Could Not Set Options';
}
?>
Výše uvedený příklad vypíše:
Options Set Successfully
Příklad 743. Setting multiple parameters with a connection resource
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF,
'binmode' => DB2_PASSTHRU,
'db2_attr_case' => DB2_CASE_UPPER,
'cursor' => DB2_SCROLLABLE);
/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);
/* Check if all options could be set correctly */
if($result)
{
echo 'Options Set Successfully';
}
else
{
echo 'Could Not Set Options';
}
?>
Výše uvedený příklad vypíše:
Options Set Successfully
Příklad 744. Setting multiple parameters with an invalid key
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF,
'MY_INVALID_KEY' => DB2_PASSTHRU,
'db2_attr_case' => DB2_CASE_UPPER,
'cursor' => DB2_SCROLLABLE);
/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);
/* Check if all options could be set correctly */
if($result)
{
echo 'Options Set Successfully';
}
else
{
echo 'Could Not Set Options';
}
?>
Výše uvedený příklad vypíše:
Could Not Set Options
Příklad 745. Setting multiple parameters with an invalid value
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF,
'binmode' => 'INVALID_VALUE',
'db2_attr_case' => DB2_CASE_UPPER,
'cursor' => DB2_SCROLLABLE);
/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);
/* Check if all options could be set correctly */
if($result)
{
echo 'Options Set Successfully';
}
else
{
echo 'Could Not Set Options';
}
?>
Výše uvedený příklad vypíše:
Could Not Set Options
Příklad 746. Setting multiple parameters with a connection resource and the wrong type
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF,
'binmode' => DB2_PASSTHRU,
'db2_attr_case' => DB2_CASE_UPPER,
'cursor' => DB2_SCROLLABLE);
/* Call the function using the correct resource, options array, and the wrong type value */
$result = db2_set_option($conn, $options, 2);
/* Check if all options could be set correctly */
if($result)
{
echo 'Options Set Successfully';
}
else
{
echo 'Could Not Set Options';
}
?>
Výše uvedený příklad vypíše:
Could Not Set Options
Příklad 747. Setting multiple parameters with the wrong resource
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF,
'binmode' => DB2_PASSTHRU,
'db2_attr_case' => DB2_CASE_UPPER,
'cursor' => DB2_SCROLLABLE);
$stmt = db2_prepare($conn, 'SELECT * FROM EMPLOYEE');
/* Call the function using the wrong resource, and the correct options array, and type values */
$result = db2_set_option($stmt, $options, 1);
/* Check if all options could be set correctly */
if($result)
{
echo 'Options Set Successfully';
}
else
{
echo 'Could Not Set Options';
}
?>
Výše uvedený příklad vypíše:
Could Not Set Options
Příklad 748. Putting it all together
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';
/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";
/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');
/* Create the associative options array with valid key-value pairs */
$options = array('db2_attr_case' => DB2_CASE_LOWER,
'cursor' => DB2_SCROLLABLE);
$stmt = db2_prepare($conn, 'SELECT * FROM EMPLOYEE WHERE EMPNO = ? OR EMPNO = ?');
/* Call the function using the correct resource, options array, and type values */
$option_result = db2_set_option($stmt, $options, 2);
$result = db2_execute($stmt, array('000130', '000140'));
/* Get Row 2 before Row 1 since Scrollable Cursor */
print_r(db2_fetch_assoc($stmt, 2));
print '<br /><br />';
print_r(db2_fetch_assoc($stmt, 1));
?>
Výše uvedený příklad vypíše:
Array
(
[empno] => 000140
[firstnme] => HEATHER
[midinit] => A
[lastname] => NICHOLLS
[workdept] => C01
[phoneno] => 1793
[hiredate] => 1976-12-15
[job] => ANALYST
[edlevel] => 18
[sex] => F
[birthdate] => 1946-01-19
[salary] => 28420.00
[bonus] => 600.00
[comm] => 2274.00
)
Array
(
[empno] => 000130
[firstnme] => DELORES
[midinit] => M
[lastname] => QUINTANA
[workdept] => C01
[phoneno] => 4578
[hiredate] => 1971-07-28
[job] => ANALYST
[edlevel] => 16
[sex] => F
[birthdate] => 1925-09-15
[salary] => 23800.00
[bonus] => 500.00
[comm] => 1904.00
)Příklad 749. i5/OS cursors are read-only
<?php
$conn = db2_connect("", "", "", array("i5_lib"=>"nobody"));
$stmt = db2_prepare($conn, 'select * from names where first = ?');
$name = "first2";
db2_bind_param($stmt, 1, "name", DB2_PARAM_IN);
$options = array("i5_fetch_only"=>DB2_I5_FETCH_ON);
db2_set_option($stmt,$options,0);
if (db2_execute($stmt)) {
while ($row = db2_fetch_array($stmt)) {
echo "{$row[0]} {$row[1]}";
}
}
?>
Výše uvedený příklad vypíše:
first2 last2
Viz také
| db2_connect() |
| db2_pconnect() |
| db2_exec() |
| db2_prepare() |
| db2_cursor_type() |
add a note
User Contributed Notesdb2_set_option
rtejpar at ca dot ibm dot com
03-Nov-2006 07:45
03-Nov-2006 07:45