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headers_sentChecks if or where headers have been sent Description
bool headers_sent(string
&$filename = null , int &$line = null )Checks if or where headers have been sent. 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. Parameters
Return Values
headers_sent will return Examples
Example #1 Examples using headers_sent
Notes
See Also
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