note 62328 deleted from function.headers-sent by betz
| From: | betz@php.net | Date: | Sun, 23 Mar 2008 10:46:41 +0000 |
| Subject: | note 62328 deleted from function.headers-sent by betz | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-137353@lists.php.net to get a copy of this message | ||
Note Submitter: rajnesh at gmail dot com
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headers_sent() will return FALSE if no HTTP headers have already been sent or TRUE otherwise. If the
optional file and line parameters are set, headers_sent() will put the PHP source file name and line
number where output started in the file and line variables.
You can't add any more header lines using the header() function once the header block has
already been sent. Using this function you can at least prevent getting HTTP header related error
messages. Another option is to use Output Buffering.
Note: The optional file and line parameters where added in PHP 4.3.0.