Home > Cannot Read > Cannot Read Or Insert Database Sessions

Cannot Read Or Insert Database Sessions

Using both of these poorly secured queries I could easily log myself in as any user I wish. For example, you could store a token in the Session that is auto generated on each request. Run the following SQL in your database to generate the table. In addition, other sessions cannot write data into the table until the READ lock is released. http://sauvblog.com/cannot-read/cannot-read-termcap-database.html

Next, the script checks for the presence of a $_POST['submitok'] variable, which would indicate that the signup form had been submitted. How to install Mediawiki in Ubuntu Converting the weight of a potato into a letter grade Is there a word for turning something into a competition? Chris Serella I forgot to update the post, ive since sorted the problem, it was unrelated to the the class because i was pulling some session data into another object which Error writing to database. https://moodle.org/mod/forum/discuss.php?d=207883

After struggling to fix this error, I simply backed up Moodle and its database and reinstalled. for that you need to do like below very simple:- $query = mysqli_query($connection,"select * from login where password='$password' AND username='$username'")or die(mysqli_error($connection)); Some other issue are there, so for your help, Please Initialization of a new instance of session class make all session variables disappear … Philip Brown You would need to include both files into the same request.

I have coded PHP sessions using your article as a basis. Any thoughts? Please, can you tell me, did I manage to make things right and I made correct and right fixes? The access token is the current time stamp.

Each of these methods are really simple. The Access Control Script For each page that you want to protect with this access control scheme (so that only registered users may view it), your script must follow the procedure Is this Business or Tourism? http://stackoverflow.com/questions/35470745/mysql-cannot-select-a-row-inserted-in-a-different-session What was Stan Lee's character reading on the bus in Doctor Strange Does f:x mean the same thing as f(x)?

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I also played around with my session config to make sure that's where the session options were actually coming from. Chapter 1, “Perf- mance Problems,” explains not only why it is essential to approach performance problems at the right moment and in a methodological way but also why understanding business needs To reiterate, any page can now be restricted to members-only access simply by including accesscontrol.php at the top of the script.

This means that every request you make in a browser is anonymous in the sense that it is not tied to the previous request in any way. Was a massive case of voter fraud uncovered in Florida? Be sure to change this if you're using a different database name. Not the answer you're looking for?

Hmm, I'm not sure tbh, I've not used it. weblink Thanks again ! –ModZone LB Jun 2 '15 at 11:27 this won't work $username = mysqli_real_escape_string($username); $password = mysqli_real_escape_string($password); and for 2 reasons - same for where password=$password AND He is working as a senior consultant and trainer at Trivadis AG in Z rich, Switzerland. In order to fix this, I had to set the database to 'read committed' by doing the following: Adding the following lines to my.cnf (the mysql config file): [mysqld] binlog_format =

INSERT INTO tbl(col) VALUES(11);1INSERT INTO tbl(col) VALUES(11); Error Code: 1099. That's probably not the direct PHP answer you were looking for, but I hope it helps :) Andy Thanks for the reply. Andy Hi Philip, I have realised that I can catch the ?el=1 call to my PHP file and use that to start a new Session BUT…. navigate here I am really exhausted, but that is how with the newbies.

Before you can go ahead and use the spiffy session-management features in PHP, you need to ensure that the relevant section of your php.ini file has been set up properly. On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? In addition, other sessions can read data from the table without acquiring the lock.The session that holds the READ lock can only read data from the table, but not write.

A good way to see this in action is to create a counter that increases every time you refresh the page:
// Include class
include 'Session.php';
//

Thanks again, Mark. You may have noticed that the signup form didn't contain a field for the user to enter a password. Everything was working well, until I realized there's a production issue due to load balancing. Philip Brown Good stuff!

Philip Brown No problem :) Glad you found it useful! If you want to use your own Database abstraction layer, it should be pretty easy to switch it out. Any ideas? his comment is here Thanks in advance for any help.Average of ratings: - Permalink | ReplyRe: Error Writing to DatabaseHoward MillerThursday, 26 July 2012, 10:13 PMTry switching on Debugging.

Just one question: Instead of this type of code : // Attempt execution if($this->db->execute()){ // Return True return true; } // Return False return false; wouldn't be much simplier : return The collection has no attribute called user, so that calling insert on it results in your error. Thank you. Beneath it, you'll find twenty-some options beginning with the word session.

I have created a GitHub account and made a gist of the source code, which can be found here: https://gist.github.com/pigeonator/939be131986e8dfa07f2, Would it be possible if you could take a look and I've just gotten back to the point I was at, error free. Thanks again for the tutorial. I did a small change to the database query in _write method to prevent the data to be cleared after the second instance of the session class call the constructor and

SELECT DISTINCT c.* , ctx.id AS ctxid, ctx.path AS ctxpath, ctx.depth AS ctxdepth, ctx.contextlevel AS ctxlevel, ctx.instanceid AS ctxinstance FROM mdl_course c JOIN mdl_forum_discussions fd ON fd.course = c.id JOIN mdl_forum_posts This method is the first example of where we bind data to the query. If you're using a server belonging to your Web host, it's probably safe to assume this has been done for you. The same thing happens to create $pwd from the $_POST or $_SESSION array.

INSERT INTO tbl(col) VALUES(11);1INSERT INTO tbl(col) VALUES(11);It works.Next, read data from the tbl table. It is important that each call to my php file stores a value. Browse other questions tagged php database session zend-framework zend-framework2 or ask your own question. Of course, you can't store the passwords encrypted using MySQL's PASSWORD function if you want to implement this feature (since PASSWORD is a one-way operation that cannot be reversed).

Philip Brown Are you using reading from the session correctly? If not, it will be set to the value of $_SESSION['uid'].