ingres_connect
(PHP 4 >= 4.0.2, PHP 5 <= 5.0.5, PECL ingres:1.0-1.4.3)
ingres_connect — Open a connection to an Ingres database
说明
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.
All the other ingres functions use the last opened link as a default, so you need to store the returned value only if you use more than one link at a time.
参数
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 follows the syntax [node_id::]dbname[/svr_class].
- username
-
The Ingres user name.
- password
-
The password associated with username .
- options
-
ingres_connect() options
Option name Description date_century_boundary 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. group Speficfies the group ID of the user, equivalent to the '-G' flag role The role ID of the application. If a role password is required, the parameter value should be specified as "role/password" effective_user The ingres user account being impersonated, equivalent to the '-u' flag dbms_password The internal database password for the user connecting to Ingres table_structure The default structure for new tables. Valid values for table_structure are:
- INGRES_STRUCTURE_BTREE
- INGRES_STRUCTURE_HASH
- INGRES_STRUCTURE_HEAP
- INGRES_STRUCTURE_ISAM
- INGRES_STRUCTURE_CBTREE
- INGRES_STRUCTURE_CISAM
- INGRES_STRUCTURE_CHASH
- INGRES_STRUCTURE_CHEAP
index_structure The default structure for new secondary indexes. Valid values for index_structure are:
- INGRES_STRUCTURE_CBTREE
- INGRES_STRUCTURE_CISAM
- INGRES_STRUCTURE_CHASH
- INGRES_STRUCTURE_BTREE
- INGRES_STRUCTURE_HASH
- INGRES_STRUCTURE_ISAM
login_local 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. timezone Controls the timezone of the session. If not set it will default the the value defined by II_TIMEZONE_NAME. If II_TIMEZONE_NAME is not defined the NA-PACIFIC (GMT-8 with Daylight Savings) is used. date_format 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_DMY
- INGRES_DATE_FINISH
- INGRES_DATE_GERMAN
- INGRES_DATE_ISO
- INGRES_DATE_ISO4
- INGRES_DATE_MDY
- INGRES_DATE_MULTINATIONAL
- INGRES_DATE_MULTINATIONAL4
- INGRES_DATE_YMD
- INGRES_DATE_US
decimal_separator The character identifier for decimal data money_lort Leading or trailing currency sign. Valid values for money_lort are:
- INGRES_MONEY_LEADING
- INGRES_MONEY_TRAILING
money_sign The currency symbol to be used with the MONEY datatype money_precision The precision of the MONEY datatype float4_precision Precision of the FLOAT4 datatype float8_precision Precision of the FLOAT8 data blob_segment_length The amount of data in bytes to fetch at a time when retrieving BLOB/CLOB data, defaults to 4096 bytes when not explicitly set.
返回值
Returns a Ingres link resource on success, or FALSE on failure.
范例
Example#1 ingres_connect() example
<?php
$link = ingres_connect("mydb", "user", "pass")
or die("Could not connect");
echo "Connected successfully";
ingres_close($link);
?>
Example#2 ingres_connect() example using default link
<?php
ingres_connect("mydb", "user", "pass")
or die("Could not connect");
echo "Connected successfully";
ingres_close();
?>
