Manuál PHP | ||
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Předcházející | Další |
Establishes a new connection to an Oracle server and logs on.
Unlike oci_connect() and oci_pconnect(), oci_new_connect() does not cache connections and will always return a brand-new freshly opened connection handle. This is useful if your application needs transactional isolation between two sets of queries.
username
The Oracle user name.
password
The password for username
.
db
This optional parameter can either contain the name of the local Oracle instance or the name of the entry in tnsnames.ora.
If the not specified, PHP uses environment variables ORACLE_SID and TWO_TASK to determine the name of local Oracle instance and location of tnsnames.ora accordingly.
charset
Při použití serveru Oracle verze 9.2 a novější,
můžete indikovat parametr charset
, který se použije
pro nové spojení. Používáte-li server Oracle < 9.2, tento parametr se bude
ignorovat a místo něho se použije proměnná prostředí NLS_LANG.
session_mode
This parameter is available since version 1.1 and accepts the following values: OCI_DEFAULT, OCI_SYSOPER and OCI_SYSDBA. If either OCI_SYSOPER or OCI_SYSDBA were specified, this function will try to establish privileged connection using external credentials. Privileged connections are disabled by default. To enable them you need to set oci8.privileged_connect to On.
The following demonstrates how you can separate connections.
Poznámka: If you're using PHP with Oracle Instant Client, you can use easy connect naming method described here: http://download-west.oracle.com/docs/cd/B12037_01/network.101/b10775/naming.htm#i498306. Basically this means you can specify "//db_host[:port]/database_name" as database name. But if you want to use the old way of naming you must set either ORACLE_HOME or TNS_ADMIN.
Poznámka: In PHP versions before 5.0.0 you must use ocinlogon() instead. This name still can be used, it was left as alias of oci_new_connect() for downwards compatability. This, however, is deprecated and not recommended.
Předcházející | Domů | Další |
oci_new_collection | Nahoru | oci_new_cursor |