headers_sent
int headers_sent(void)
Checks whether HTTP headers have been sent.
Returns:
TRUE if headers have been sent; FALSE if not
Description:
Checks whether HTTP headers have been sent by the server to the client and returns TRUE if they have.
Version:
Existing since version 3.0.8
Example:
Check whether headers have been sent
if (headers_sent()) {
echo "Headers Sent!";
} else {
Header("Location: http://www.newriders.com/");
}
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