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I'm trying to start the session in a header page in my webiste. But it seems there might be some sort of bug because it fails with the following error:

Warning: session_start() [function.session-start]: open(\xampp\tmp\sess_a7430aab4dd08d5fc0d511f781f41fe5, O_RDWR) failed: No such file or directory (2) in D:\Development\PHP\tt\Include\header.php on line 3

I'm using the default settings for xampp, everything is straight out of the box. For some reason its failing to open the file. however when i go to the directory with the session files in it, the files are there, they are just empty. Is this a bug? or am I doing something wrong?

php version 5.2.8

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    @SHOBAN I don't think there is anything that can be done in calling session_start() that can cause this error, there is no need to see the code. Commented Mar 22, 2009 at 6:41

3 Answers 3

Reset to default
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First stop the Xampp Server.

session.save_path = "\xampp\tmp"

and change it to look like this

session.save_path = "C:\xampp\tmp"

Restart the Xampp Server.

That’s it now your session should work as expected.

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6 Comments

Problem is the directory must exist.
This question already has an accepted answer. Unless your answer add relevant information, or corrects a mistake found in the current answers, you shouldn't post an answer.
@MadaraUchiha There is a comment to the accepted answer that states that it didn't solve the problem. So adding an actually working answer should not be a mistake.
Accepted answer didnt solve my problem, whereas this post does. So thumbs up for this one.
Like for Sgali, this fixed it for me (Okay I changed to directory to a path outside C:\ but still, thanks for the hint!)
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This means that you don't have the correct permissions to either read or write the files in the temp directory.

If you on linux then do this

sudo chmod -R 755 \xampp\tmp //or should it be 775

On windows do this as an administrator

attrib -r -a C:\xampp\tmp /S
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4 Comments

It was giving me a file not found error, so I added /D at the end and it went through. Unfortunately this didn't solve the problem
If I right click on the folder and go to properties, read only is checked. But if I uncheck it, hit apply, and then right click and go back to properties, its checked again.
Than you probably don't have the proper privelages to change the permissions.
I'm logged in as administrator. I solved the problem by changing the directory it uses in php.ini
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As Selular88 mentioned, Adding the path works and fix this issue. You can also check the path using 

// This will output your current path.
echo session_save_path() ;
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