ID: 12077
User updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Old Summary: php.exe application error - cannot 'read' memory address
Old Status: Open
Status: Closed
Bug Type: OCI8 related
Operating System: windows 2000
PHP Version: 4.0.6
New Comment:
well - i appear to have found the problem.
in the php.ini file, there are 2 oracle extensions.
extension=php_oci8.dll and extension=php_oracle.dll.
i had both of these extensions loaded, and they must have been conflicting. because
when i commented out the oracle.dll extension, restarted IIS5 and re-ran the scirpt,
it worked fine without causing the error to appear.
Previous Comments:
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[2001-07-12 00:06:49] [EMAIL PROTECTED]
i'm using php 4.0.6 through IIS5 on a windows 2000 workstation.
this is similar to bug #11202, except it occured to me while i was using oci8 as
apposed to MS SQL (which worked fine for me).
my exact error is 'php.exe - application error:
the instruction at "0x77f83a33" referenced memory at'
"0x00000010". The memory could not be "read".
when i click "OK" to terminate the program, the script seems to complete it's
execution as i want, just with the painful error showing.
if i click on "CANCEL", it's like it's in an endless loop.
btw - i'm trying to connect to an 8i 8.1.6 database.
so i'm not really sure if it's an oci8 problem or whether it's an IIS5 or windows 2000
problem.
here is a sample script which i am using.
<html>
<title>Default php load file.</title>
<body>
<?php
include("classes.php");
// test for MS SQL server. This part works without errors.
// Create new connection.
$mssql_conn = new Connection($database_name, $database_type, $server_name,
"webuser", "webuser");
//test connection with a simple SELECT call.
$SQL = "SELECT * from role_type ";
$result = $mssql_conn->exec($SQL);
echo $result;
echo "<br>";
echo mssql_num_rows($result);
echo "<br>";
echo "<br>";
// Test for oracle database..
// This part produces the error.
$ora_conn = new connection("PS_PLATO", "ORA", "PLATO", "psadmin", "d3g3sh");
$SQL = "SELECT * from advert ";
$result4 = $ora_conn->exec($SQL);
echo "result of exec statement " . $result4;
echo "<br>";
echo ocinumcols($ora_conn->stmt);
echo "<br>";
echo "<br>";
?>
this is the classes.php include file.
<?php
class Connection
{
// Variables
var $connect_to;
var $server;
var $database;
var $db;
var $stmt;
// Constructor
function Connection($database_name, $database_type, $server_name = "", $username =
"", $password = "", $port="")
{
if ($database_name != "" && $database_type != "")
{
$this->connect_to = $database_type;
$this->server = $server_name;
$this->database = $database_name;
switch ($database_type) {
case "MSSQL":
$this->db = mssql_connect($server_name, $username, $password);
if ($this->db <> false)
{
$done = mssql_select_db($database_name, $this->db);
}
break;
case "ORA":
$this->db = ocilogon($username, $password, $database_name);
break;
case "ODBC":
$this->db = odbc_connect($database_name, $username, $password);
break;
case "PGSQL":
$this->db = pg_Connect("host=$server_name port=$port
dbname=$database_name user=$username");
break;
default:
echo "<font face=tahoma>Invalid or Unsupported database
type.</font><br>";
}
} else {
echo "<font face=tahoma>Information missing in connection string.</font><br>";
}
}
// Functions
function exec($SQL)
// for the DML calls to databases.
{ echo $this->connect_to;
echo "<bR>";
switch ($this->connect_to) {
case "MSSQL": return mssql_query($SQL, $this->db); break;
case "ODBC": return odbc_exec($this->db, $SQL); break;
case "PGSQL": return pg_exec($this->db, $SQL); break;
case "ORA": $this->stmt = ociparse($this->db, $SQL);
return ociexecute($this->stmt); break;
default:
echo "<font face=tahoma>Invalid or Unsupported database
type.</font><br>";
}
}
}
?>
this is meant to be a basic database wrapper - you pass in a database type, name,
server name, username, password and a port number(for those dbases that need it), and
it opens a valid connection to that dbase. then you can perform standard commands like
the execution of an sql statements and the standard php-database funcitons like
num_rows etc.
refreshing the pages does little more than represent the error to the screen.
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