Error when php uses session

1. The error reported when PHP uses session is as follows:

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent

Solution:

1. Change output_buffering=off in php.ini to output_buffering=4096

2. Change output_buffering=off in php.ini Is session.save_path set up?

3. Change session.auto_start = 0 in pgp.ini to session.auto_start = 1

4. PHP code session_start( ) There must be no output before it, and it must be placed on the first line; any characters before the PHP code of session_start() are regarded as headers. That is, put session_start();......?> at the beginning of the file, and there cannot be any characters in front of

If the above four methods cannot solve the problem, you can use UltraEdit-32 Save it as UTF-8.

2. The error reported when PHP uses session is as follows:

Warning: session_start(): Cannot start session when headers already sent in

Warning: Cannot modify header information - headers already sent by (output started at

The error reported here is that there are extra spaces, as shown below.

Remove the extra spaces and you can .

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