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This document uses PHP Chinese website manual Release
(PHP 4 >= 4.0.2, PHP 5 <= 5.0.5, PECL ingres >= 1.0.0)
ingres_connect — Open a connection to an Ingres database
$database
[, string $username
[, string $password
[, array $options
]]]] ) ingres_connect() opens a connection with the
given Ingres database
.
The connection is closed when the script ends or when ingres_close() is called on this link.
If some parameters are missing, ingres_connect()
uses the values in php.ini for
ingres.default_database
,
ingres.default_user
and
ingres.default_password
.
database
The database name. Must follow the syntax:
[vnode::]dbname[/svr_class]
username
The Ingres user name
password
The password associated with username
options
ingres_connect() options
Option name | Option type | Description | Example |
---|---|---|---|
date_century_boundary | integer | The threshold by which a 2-digit year is determined to be in the current century or in the next century. Equivalent to II_DATE_CENTURY_BOUNDARY. | 50 |
group | string | Specifies the group ID of the user, equivalent to the "-G" flag | payroll |
role | string | The role ID of the application. If a role password is required, the parameter value should be specified as "role/password" | |
effective_user | string | The ingres user account being impersonated, equivalent to the "-u" flag | another_user |
dbms_password | string | The internal database password for the user connecting to Ingres | s3cr3t |
table_structure | string | The default structure for new tables. Valid values for table_structure are:
| INGRES_STRUCTURE_BTREE |
index_structure | string | The default structure for new secondary indexes. Valid values for index_structure are:
| INGRES_STRUCTURE_HASH |
login_local | boolean | Determines how the connection user ID and password are used when a VNODE is included in the target database string. If set to TRUE, the user ID and password are used to locally access the VNODE, and the VNODE login information is used to establish the DBMS connection. If set to FALSE, the process user ID is used to access the VNODE, and the connection user ID and password are used in place of the VNODE login information to establish the DBMS connection. This parameter is ignored if no VNODE is included in the target database string. The default is FALSE. | TRUE |
timezone | string | Controls the timezone of the session. If not set it will default to the value defined by II_TIMEZONE_NAME. If II_TIMEZONE_NAME is not defined, NA-PACIFIC (GMT-8 with Daylight Savings) is used. | |
date_format | integer | Sets the allowable input and output format for Ingres dates. Defaults to the value defined by II_DATE_FORMAT. If II_DATE_FORMAT is not set the default date format is US, e.g. mm/dd/yy. Valid values for date_format are:
| INGRES_DATE_MULTINATIONAL4 |
decimal_separator | string | The character identifier for decimal data | "," |
money_lort | integer | Leading or trailing currency sign. Valid values for money_lort are:
| INGRES_MONEY_TRAILING |
money_sign | string | The currency symbol to be used with the MONEY datatype | |
money_precision | integer | The precision of the MONEY datatype | 3 |
float4_precision | integer | Precision of the FLOAT4 datatype | 10 |
float8_precision | integer | Precision of the FLOAT8 data | 10 |
blob_segment_length | integer | The amount of data in bytes to fetch at a time when retrieving BLOB or CLOB data, defaults to 4096 bytes when not explicitly set | 8192 |
Returns a Ingres link resource on success 或者在失败时返回 FALSE
Example #1 Open a connection to an Ingres database
<?php
$link = ingres_connect ( "mydb" , "user" , "pass" )
or die( "Could not connect" );
echo "Connected successfully" ;
ingres_close ( $link );
?>
[#1] tdjunk at openxtrem dot com [2007-06-26 05:09:39]
You need to connect with the user running your web server, be it apache, nobody, or system (on MS Windows). Hence you have to create a matching (username) Ingres user.
Otherwise you may experience an Ingres Error :
790536 : Unable to authenticate client's user ID.
See more information on the community forum : http://community.ingres.com/forum/dba-forum/463-installation-problem-ingres-ice.html