If I have two headers like:
header("Cache-Control: public");
header("Cache-Control: private");
Which will be effective (first or last)?
Asked
Active
Viewed 65 times
0
AbraCadaver
- 78,200
- 7
- 66
- 87
-
1Quite easy to test, isn't it? – N.B. Oct 27 '15 at 17:38
-
1Do you understand what `private` and `public` actually mean wrt Cache-Control headers? – Mark Baker Oct 27 '15 at 17:39
-
it's the daily quiz. – Funk Forty Niner Oct 27 '15 at 17:47
-
1Headers will be overriden if defined more than once. So, the second one. – zxcmehran Oct 27 '15 at 17:49
-
About the specify case of cache-control, see [this answer](http://stackoverflow.com/a/4371395/3136474) – Dinei Oct 27 '15 at 17:52
1 Answers
1
On this script the second header() will be used:
<?php
header('Location: http://google.de');
header('Location: http://stackoverflow.com');
On your script the second header() will be used:
<?php
header("Cache-Control: public");
header("Cache-Control: private");
If a header was defined multiple times, the last one will be used!
Sebastian Brosch
- 42,106
- 15
- 72
- 87
-
To elaborate on this answer, if an `exit;` were placed after the first header, then the last one will not execute. – Funk Forty Niner Oct 27 '15 at 17:49
-
-