OCIPLogon
(PHP 3>= 3.0.8, PHP 4 >= 4.0.0)OCIPLogon -- Connect to an Oracle database and log on using a persistent connection. Returns a new session.
Descriptionint OCIPLogon (string username, string password [, string db])
OCIPLogon() creates a persistent connection to an Oracle 8 database and logs on. The optional third parameter can either contain the name of the local Oracle instance or the name of the entry in tnsnames.ora to which you want to connect. If the optional third parameter is not specified, PHP uses the environment variables ORACLE_SID (Oracle instance) or TWO_TASK (tnsnames.ora) to determine which database to connect to. See also OCILogon() and OCINLogon().
(PHP 3>= 3.0.8, PHP 4 >= 4.0.0)OCIPLogon -- Connect to an Oracle database and log on using a persistent connection. Returns a new session.
Descriptionint OCIPLogon (string username, string password [, string db])
OCIPLogon() creates a persistent connection to an Oracle 8 database and logs on. The optional third parameter can either contain the name of the local Oracle instance or the name of the entry in tnsnames.ora to which you want to connect. If the optional third parameter is not specified, PHP uses the environment variables ORACLE_SID (Oracle instance) or TWO_TASK (tnsnames.ora) to determine which database to connect to. See also OCILogon() and OCINLogon().
(PHP 3>= 3.0.8, PHP 4 >= 4.0.0)OCINLogon -- Connect to an Oracle database and log on using a new connection. Returns a new session.
Descriptionint OCINLogon (string username, string password [, string db])
OCINLogon() creates a new connection to an Oracle 8 database and logs on. The optional third parameter can either contain the name of the local Oracle instance or the name of the entry in tnsnames.ora to which you want to connect. If the optional third parameter is not specified, PHP uses the environment variables ORACLE_SID (Oracle instance) or TWO_TASK (tnsnames.ora) to determine which database to connect to. OCINLogon() forces a new connection. This should be used if you need to isolate a set of transactions. By default, connections are shared at the page level if using OCILogon() or at the web server process level if using OCIPLogon(). If you have multiple connections open using OCINLogon(), all commits and rollbacks apply to the specified connection only. This example demonstrates how the connections are separated. Example 1. OCINLogon<?php
print "<HTML><PRE>";
$db = "";$c1 = ocilogon("scott","tiger",$db);
$c2 = ocinlogon("scott","tiger",$db);function create_table($conn)
{ $stmt = ociparse($conn,"create table scott.hallo (test
varchar2(64))");
ociexecute($stmt);
echo $conn." created table\n\n";
}function drop_table($conn)
{ $stmt = ociparse($conn,"drop table scott.hallo");
ociexecute($stmt);
echo $conn." dropped table\n\n";
}function insert_data($conn)
{ $stmt = ociparse($conn,"insert into scott.hallo
values('$conn' || ' ' || to_char(sysdate,'DD-MON-YY HH24:MI:SS'))");
ociexecute($stmt,OCI_DEFAULT);
echo $conn." inserted hallo\n\n";
}function delete_data($conn)
{ $stmt = ociparse($conn,"delete from scott.hallo");
ociexecute($stmt,OCI_DEFAULT);
echo $conn." deleted hallo\n\n";
}function commit($conn)
{ ocicommit($conn);
echo $conn." committed\n\n";
}function rollback($conn)
{ ocirollback($conn);
echo $conn." rollback\n\n";
}function select_data($conn)
{ $stmt = ociparse($conn,"select * from scott.hallo");
ociexecute($stmt,OCI_DEFAULT);
echo $conn."----selecting\n\n";
while (ocifetch($stmt))
echo $conn." <".ociresult($stmt,"TEST").">\n\n";
echo $conn."----done\n\n";
}create_table($c1);
insert_data($c1);select_data($c1);
select_data($c2); rollback($c1); select_data($c1);
select_data($c2); insert_data($c2);
commit($c2); select_data($c1); delete_data($c1);
select_data($c1);
select_data($c2);
commit($c1); select_data($c1);
select_data($c2);
drop_table($c1);
print "</PRE></HTML>";
?>
See also OCILogon() and OCIPLogon().
(PHP 3>= 3.0.4, PHP 4 >= 4.0.0)OCILogon -- Establishes a connection to Oracle
Descriptionint OCILogon (string username, string password [, string db])
OCILogon() returns an connection identifier needed for most other OCI calls. The optional third parameter can either contain the name of the local Oracle instance or the name of the entry in tnsnames.ora to which you want to connect. If the optional third parameter is not specified, PHP uses the environment variables ORACLE_SID (Oracle instance) or TWO_TASK (tnsnames.ora) to determine which database to connect to. Connections are shared at the page level when using OCILogon(). This means that commits and rollbacks apply to all open transactions in the page, even if you have created multiple connections. This example demonstrates how the connections are shared. Example 1. OCILogon<?php
print "<HTML><PRE>";
$db = "";$c1 = ocilogon("scott","tiger",$db);
$c2 = ocilogon("scott","tiger",$db);function create_table($conn)
{ $stmt = ociparse($conn,"create table scott.hallo (test varchar2(64))");
ociexecute($stmt);
echo $conn." created table\n\n";
}function drop_table($conn)
{ $stmt = ociparse($conn,"drop table scott.hallo");
ociexecute($stmt);
echo $conn." dropped table\n\n";
}function insert_data($conn)
{ $stmt = ociparse($conn,"insert into scott.hallo
values('$conn' || ' ' || to_char(sysdate,'DD-MON-YY HH24:MI:SS'))");
ociexecute($stmt,OCI_DEFAULT);
echo $conn." inserted hallo\n\n";
}function delete_data($conn)
{ $stmt = ociparse($conn,"delete from scott.hallo");
ociexecute($stmt,OCI_DEFAULT);
echo $conn." deleted hallo\n\n";
}function commit($conn)
{ ocicommit($conn);
echo $conn." committed\n\n";
}function rollback($conn)
{ ocirollback($conn);
echo $conn." rollback\n\n";
}function select_data($conn)
{ $stmt = ociparse($conn,"select * from scott.hallo");
ociexecute($stmt,OCI_DEFAULT);
echo $conn."----selecting\n\n";
while (ocifetch($stmt))
echo $conn." <".ociresult($stmt,"TEST").">\n\n";
echo $conn."----done\n\n";
}create_table($c1);
insert_data($c1); // Insert a row using c1
insert_data($c2); // Insert a row using c2select_data($c1); // Results of both inserts are returned
select_data($c2); rollback($c1); // Rollback using c1select_data($c1); // Both inserts have been rolled back
select_data($c2); insert_data($c2); // Insert a row using c2
commit($c2); // commit using c2select_data($c1); // result of c2 insert is returneddelete_data($c1); // delete all rows in table using c1
select_data($c1); // no rows returned
select_data($c2); // no rows returned
commit($c1); // commit using c1select_data($c1); // no rows returned
select_data($c2); // no rows returned
drop_table($c1);
print "</PRE></HTML>";
?>
See also OCIPLogon() and OCINLogon().