Sessions and browser's tabs May you have noticed when you open your website in two or more tabs in Firefox, Opera, IE 7. What you do in one will affect the another and vice-versa. Even if you open Firefox again, it will use the same cookie of the previous session. But that is not what you need mostly of time, specially when you want to copy information from one place to another in your web application.
There is a workaround and it rely only on changing the session's name. It don't need to be too strong like uniqid rand ,TRUE , because all security rely in the session id, not in the session name.
We only need here a different id for each session we open. Even getmypid is enough to be used for this, but I don't know if this may post a treat to the web server. I don't think so. If none is given, it will generate a new one and so, create a new session to a new tab. Well, the problem with cookie is that all tabs will share the same cookie to do it, and the sessions will mix anyway.
Cookies will work partially if you set them in different paths and each cookie will be available in their own directories. But this will not make sessions in each tab completly separated from each other. If you save it as a different name, simply update the links at the bottom to reflect the change. So, this test is usefull to identify any causes.
There's a bug in Internet explorer in which sessions do not work if the name of the server is not a valid name. Alternatively, you can use the constant SID which is defined if the session started. Otherwise, it expands to an empty string.
Thus, you can embed it unconditionally into URLs. The following example demonstrates how to register a variable, and how to link correctly to another page using SID.
PHP - Sessions Advertisements. Previous Page. One should start the session after properly authenticating. If you open a popup window please no commercial ones!
Note I don't use SID for this, because it will not allways be available. Due to the filesystems mounting parameters, atime will normally not be updated. Instead of atime, mtime will be delivered. This behavior may cause an early session death and your users my be kicked of your login system.
To keep the session alive it will be necessary to write something into the sessionfile at each request, e. Be warned that depending on end of script to close the session will effectively serialize concurrent session requests. Concurrent background "data retrieval" e. James at skinsupport dot com raises a good point warning about additional requests from the browser.
The request for favicon. If signin. Kudos to James for pointing it out and shame on me for skimming past it and not seeing how it applied to my problem. Don't waste days or even hours on this if your session cookies are not being sent or if the session data isn't what you expect it to be. At a minimum, eliminate this case and see if any additional requests could be at fault.
A handy script that checks fot the presence of uft-8 byte order mark BOM in all files in all directories starting on current dir. Combined from the work of other people here It appears that DW will not change this setting in already existing files. After creating a new file withou the BOM, everything worked well. It seems like spaces in the name don't work either - got a new session id generated each time.
If you are starting your session inside an include file you must be aware of the presence of undesired characters after php end tag. Why I'm having these output header errors? By default, PHP uses the internal files save handler which is set by session.
This saves session data on the server at the location specified by the session. If the session.
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