CI Framework cannot modify header Information-headers already sent by

A PHP Error was encountered

Severity:warning

Message:cannot Modify header Information-headers already sent by (output started At/var/www/fbz/application/models/con tent.php:268)

filename:helpers/url_helper.php

Seems to put the front

$logsession = $this->session->all_userdata();

This sentence will not be an error.

Reply content:

A PHP Error was encountered

Severity:warning

Message:cannot Modify header Information-headers already sent by (output started At/var/www/fbz/application/models/con tent.php:268)

filename:helpers/url_helper.php

Seems to put the front

$logsession = $this->session->all_userdata();

This sentence will not be an error.

Because there is already output before using the session.
Generally because the PHP file?> after the end of a space return
Or use the Echo or print

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