ingres_connect

(PHP 4 >= 4.0.2, PHP 5 < 5.1.0, PECL ingres >= 1.0.0)

ingres_connect — Open a connection to an Ingres database

说明

ingres_connect ([ string $database [, string $username [, string $password [, array $options ]]]] ) : resource

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.

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 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
  • INGRES_STRUCTURE_HASH
  • INGRES_STRUCTURE_HEAP
  • INGRES_STRUCTURE_ISAM
  • INGRES_STRUCTURE_CBTREE
  • INGRES_STRUCTURE_CISAM
  • INGRES_STRUCTURE_CHASH
  • INGRES_STRUCTURE_CHEAP

 INGRES_STRUCTURE_BTREE
index_structure string

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

 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_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

 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_LEADING
  • INGRES_MONEY_TRAILING

 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

返回值

Returns a Ingres link resource on success 或者在失败时返回 FALSE

范例

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);
?>

参见