What are headers() in PHP?

1.	What are headers() in PHP?
Answer» In PHP header() is used to send a raw HTTP header. It must be called before any actual output is sent, either by NORMAL HTML tags, blank lines in a file, or from PHP Example : header(string,replace,http_response_code); 1. string: It is the required parameters. It specifies the header string to send. 2. replace: It is OPTIONAL. It indicates whether the header should replace PREVIOUS or add a second header. 3. http_response_code : It is optional. It forces the HTTP response code to the specified value

Answer»

In PHP header() is used to send a raw HTTP header. It must be called before any actual output is sent, either by NORMAL HTML tags, blank lines in a file, or from PHP

Example :

header(string,replace,http_response_code);

1. string: It is the required parameters. It specifies the header string to send.

2. replace: It is OPTIONAL. It indicates whether the header should replace PREVIOUS or add a second header.

3. http_response_code : It is optional. It forces the HTTP response code to the specified value

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