(PHP 4, PHP 5, PHP 7, PHP 8)
odbc_pconnect — Open a persistent database connection
$dsn
,$user
= null
,$password
= null
,$cursor_option
= SQL_CUR_USE_DRIVER
Opens a persistent database connection.
This function is much like
odbc_connect(), except that the connection is
not really closed when the script has finished. Future requests
for a connection with the same dsn
,
user
, password
combination (via odbc_connect() and
odbc_pconnect()) can reuse the persistent
connection.
See odbc_connect() for details.
Returns an ODBC connection, 或者在失败时返回 false
.
版本 | 说明 |
---|---|
8.4.0 |
odbc 现在需要 Odbc\Connection
实例;之前需要 resource。
|
8.4.0 | 此函数现在返回 Odbc\Connection 实例;之前返回 resource。 |
8.4.0 |
user and password are now nullable,
they are now also optional and default to null .
|
8.4.0 |
Previously, using an empty string for password would not include
pwd in the generated connection string for dsn .
It is now generated to include a pwd which has an empty string as its value.
To restore the previous behaviour password can now be set to null .
|
8.4.0 |
Previously, if dsn contained uid or pwd
both user and password parameters were ignored.
Now user is only ignored if dsn contains
uid , and password is only ignored if
dsn contains pwd .
|
注意: Persistent connections have no effect if PHP is used as a CGI program.