Strange Oracle Query problem

Posted on 16th Feb 2014 07:03 pm by admin

Ok So I have this PHP class that talks to a Javascript class that basically creates a table of information from a database query and puts it in a sortable, filterable table. This all works fine and dandy.

Well, i have had the need for some semi-dynamic functionality (changing the table of the query, or changing some other detail) which I accomplished using GETS. This also worked perfectly

I wanted to try to add some AJAX functionality in place of the GET functionality, so I changed things around a bit, and now I am sending an xmlhttprequest to my php page. this requests fine. however, I do not get back the information I want. Here is the PHP page that I send the request to


require('page.php');
function getAssoc($query, $table){
$svname = 'list_users';
$svuser = 'dmitriyy';
$svpass = 'dmitriyy';
$oracle = new oracle($svname, $svuser, $svpass);
//var_dump($oracle);
$query = str_replace('REPLACE_ME', $table, $query);
//var_dump($query);
//echo $query."<br />";
//echo "execute is here bitch";
echo $query;
$execute = $oracle->query$query);
while(OCIFetchInto($execute, $results, OCI_ASSOC)){
if ($data == null){
$data = array();
$data[] = $results;
}
else {
$data[] = $results;
}
}
return $data;

}

$query = $_GET['q'];
$table = $_GET['t'];

print_r(getAssoc($query, $table));
echo "done with print_r";
//echo json_encode(getAssoc($query, $table));


page.php (just a small class that does some oracle database connection and query stuff. This class DOES work, as I use it everywhere)

class oracle {
//class variables
var $connection;

/*Constructor
*Input (Server name, server usename, server password. By default
*server name is localhost, and password and user are blank
*returns true if connection was successful, false if not
*/
function oracle($svname, $svuser, $svpass){
//echo "<script type='text/javascript'>alert('".$svname."');</script>";
try {
$conn = oci_connect($svuser, $svpass, $svname);
if (!$conn){
throw new Exception("Error");
}
}
catch(Exception $e){
trigger_error($e->getMessage());
exit();
}
$this->connection = $conn;
if (!$conn){
echo "<script type='text/javascript'>alert('COULD NOT CONNECT');</script>";
return false;
}
return true;
}//end Constructor

//class functions

/*query_valid
*Input: A query String
*Returns the string if it is valid. String cannot have insert or update commands
*returns false if it does
*/
public function is_valid($string){
$temp = strtoupper($string);
$invalid_commands = array("INSERT", "DELETE", "UPDATE", "DROP", "TRUNCATE", "APPEND");
foreach($invalid_commands as $c){
if (strpos($temp, $c) !== false){
return false;
}
}
return true;
}

/*query
*Input: A (hopefully valid) oracle query
*returns the parsed query if execution was valid
*returns false if not
*/
public function query($query){
if (!$this->is_valid($query)){
die ("Query Contains Illegal Command! Exiting script");
}

$do = oci_parse($this->connection, $query);
$go = oci_execute($do);

if (!$go){
return false;
}
return $do;
}

/*BubbleSort2
*Sorts a 2d array, based on a certain column (sorts numerically)
*returns the sorted array
*/
public function BubbleSort2($sort_array,$column = 0,$reverse = true){
$lunghezza=count($sort_array);
for ($i = 0; $i < $lunghezza ; $i++){
for ($j = $i + 1; $j < $lunghezza ; $j++){
if($reverse){
if ($sort_array[$i][$column] < $sort_array[$j][$column]){
$tmp = $sort_array[$i];
$sort_array[$i] = $sort_array[$j];
$sort_array[$j] = $tmp;
}
}else{
if ($sort_array[$i][$column] > $sort_array[$j][$column]){
$tmp = $sort_array[$i];
$sort_array[$i] = $sort_array[$j];
$sort_array[$j] = $tmp;
}
}
}
}
return $sort_array;
}

}


ignore the bubblesort

On the ajax page (the first snippet) everything seems to work fine until I try to build that data array. It just returns empty. I have verified that it is the exact same query on the main page (which executes the query successfully) and the ajax page.

One thing to note. I pass the query from php to javascript, and then back to PHP again. I use json_decode when passing to javascript from PHP. However, this doesn't seem to have an effect on the query, as I checked them, and they appear to be the same. Im really at a loss for why this isn't working.

is what i'm trying to do possible? I think it is but im not sure any more... anyone have any insight

Your Answer:

Login to answer

Other forums

PHP Mysql Staff Induction System
Hi there, I'm pretty new to PHP and Mysql so could really do with being pointed in the right directi

scandir clients directory
hi,
how can i scandir the clients directory? i need a script that when i click a button it will u

FROM_UNIXTIME($phpdate);
Hello,

I tried to use this :

$date = FROM_UNIXTIME($phpdate);

ANd I was t

NOOB needs help with upload file
The intent of this form is to create a folder for a client and upload an image into another folder '

Greek characters in php
Hi,

I'm making a script and I m using for first time greek characters.
I started to write

Help with PHP Email Script
Hi guys,

I'm a newbie to php and need help with the script below:

At the moment when I

Why does first ever HttpSendRequest take longer?
I promise this isn't as simple as it sounds. I'm wondering why the the first ever call to HttpSendRe

Date help - fetch dates for Mondays between xxx and yyy?
Does anyone know the best way to do this? I have two dates, say:

2010-01-26 and 2010-05-30

Combining refCursors and Summing
Given the following DDL:

CREATE TABLE FOODSALESTEST ("WEEKNBR" NUMBER, "ST

how to export excel file in same server
My first post - php newbie, so appreciate your support.

I'm currently using headers to save w