LIII. Oracle 8 functions
These functions allow you to access Oracle8 and Oracle7 databases.
It uses the Oracle8 Call-Interface (OCI8). You will need the Oracle8
client libraries to use this extension.
This extension is more flexible than the standard Oracle
extension. It supports binding of global and local PHP variables
to Oracle placeholders, has full LOB, FILE and ROWID support
and allows you to use user-supplied define variables.
Before using this extension, make sure that you have set up your
oracle environment variables properly for the Oracle user, as well
as your web daemon user. The variables you might need to set are as
follows:
ORACLE_HOME
ORACLE_SID
LD_PRELOAD
LD_LIBRARY_PATH
NLS_LANG
ORA_NLS33
After setting up the environment variables for your webserver user,
be sure to also add the webserver user (nobody, www) to the oracle
group.
If your webserver doesn't start or crashes at startup:
Check that Apache is linked with the pthread library:
If the libpthread is not listed you have to reinstall Apache:
Example 1. OCI Hints
<?php
// by sergo@bacup.ru
// Use option: OCI_DEFAULT for execute command to delay execution
OCIExecute($stmt, OCI_DEFAULT);
// for retrieve data use (after fetch):
$result = OCIResult($stmt, $n);
if (is_object ($result)) $result = $result->load();
// For INSERT or UPDATE statement use:
$sql = "insert into table (field1, field2) values (field1 = 'value',
field2 = empty_clob()) returning field2 into :field2";
OCIParse($conn, $sql);
$clob = OCINewDescriptor($conn, OCI_D_LOB);
OCIBindByName ($stmt, ":field2", &$clob, -1, OCI_B_CLOB);
OCIExecute($stmt, OCI_DEFAULT);
$clob->save ("some text");
OCICommit($conn);
?>
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You can easily access stored procedures in the same way as you
would from the commands line.
Example 2. Using Stored Procedures
<?php
// by webmaster@remoterealty.com
$sth = OCIParse ( $dbh, "begin sp_newaddress( :address_id, '$firstname',
'$lastname', '$company', '$address1', '$address2', '$city', '$state',
'$postalcode', '$country', :error_code );end;" );
// This calls stored procedure sp_newaddress, with :address_id being an
// in/out variable and :error_code being an out variable.
// Then you do the binding:
OCIBindByName ( $sth, ":address_id", $addr_id, 10 );
OCIBindByName ( $sth, ":error_code", $errorcode, 10 );
OCIExecute ( $sth );
?>
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- Table of Contents
- OCIDefineByName —
Use a PHP variable for the define-step during a SELECT
- OCIBindByName —
Bind a PHP variable to an Oracle Placeholder
- OCILogon — Establishes a connection to Oracle
- OCIPLogon — Connect to an Oracle database and log on using a
persistant connection. Returns a new session.
- OCINLogon — Connect to an Oracle database and log on using a new
connection. Returns a new session.
- OCILogOff — Disconnects from Oracle
- OCIExecute — Execute a statement
- OCICommit — Commits outstanding transactions
- OCIRollback — Rolls back outstanding transactions
- OCINewDescriptor —
Initialize a new empty descriptor LOB/FILE (LOB is default)
- OCIRowCount — Gets the number of affected rows
- OCINumCols —
Return the number of result columns in a statement
- OCIResult — Returns column value for fetched row
- OCIFetch — Fetches the next row into result-buffer
- OCIFetchInto — Fetches the next row into result-array
- OCIFetchStatement — Fetch all rows of result data into an array.
- OCIColumnIsNULL — test whether a result column is NULL
- OCIColumnName — Returns the name of a column.
- OCIColumnSize — return result column size
- OCIColumnType — Returns the data type of a column.
- OCIServerVersion — Return a string containing server version
information.
- OCIStatementType — Return the type of an OCI statement.
- OCINewCursor —
Return a new cursor (Statement-Handle) - use to bind ref-cursors.
- OCIFreeStatement —
Free all resources associated with a statement.
- OCIFreeCursor —
Free all resources associated with a cursor.
- OCIFreeDesc — Deletes a large object descriptor.
- OCIParse — Parse a query and return a statement
- OCIError — Return the last error of stmt|conn|global.
If no error happened returns false.
- OCIInternalDebug —
Enables or disables internal debug output. By default it is
disabled
