PHP How to get referrer URL

Question

I have a page  only index  where customers can send me emails and I want to see from what website that visitor is coming from    How can I get Referrer URL with PHP  I tried with    SERVER  HTTP REFERER   but it s empty all the time  How can I do this  Thank you   Here is what my   SERVER contains   ---- CENSORED ----  is censored by me   array 31        DOCUMENT ROOT    gt    string 33    home anything public html design      GATEWAY INTERFACE    gt    string 7   CGI 1 1      HTTP ACCEPT    gt    string 129   text html  application xml q 0 9  application xhtml xml  image png  image webp  image jpeg  image gif  image x-xbitmap      q 0 1      HTTP ACCEPT ENCODING    gt    string 13   gzip  deflate      HTTP ACCEPT LANGUAGE    gt    string 14   en-US en q 0 9      HTTP CACHE CONTROL    gt    string 8   no-cache      HTTP CONNECTION    gt    string 10   Keep-Alive      HTTP COOKIE    gt    string 189     utma 76630272 1468291432 1367655794 1367669576 1367674157 3    utmb 76630272 1 10 1367674157    utmc 76630272    utmz 76630272 1367655794 1 1 utmcsr  direct  utmccn  direct  utmcmd  none       HTTP HOST    gt    string 25    ---- CENSORED ----       HTTP USER AGENT    gt    string 57   Opera 9 80  Windows NT 6 1  Presto 2 12 388 Version 12 15      PATH    gt    string 13    bin  usr bin      QUERY STRING    gt    string 0         REDIRECT STATUS    gt    string 3   200      REMOTE ADDR    gt    string 10   5 15 68 79      REMOTE PORT    gt    string 5   57897      REQUEST METHOD    gt    string 3   GET      REQUEST URI    gt    string 12    referer php      SCRIPT FILENAME    gt    string 45    home anything public html design referer php      SCRIPT NAME    gt    string 12    referer php      SERVER ADDR    gt    string 13    ---- CENSORED ----       SERVER ADMIN    gt    string 35    ---- CENSORED ----       SERVER NAME    gt    string 25    ---- CENSORED ----       SERVER PORT    gt    string 2   80      SERVER PROTOCOL    gt    string 8   HTTP 1 1      SERVER SIGNATURE    gt    string 189    Apache 2 2 19  Unix  mod ssl 2 2 19 OpenSSL 0 9 8e-fips-rhel5 mod auth passthrough 2 1 mod bwlimited 1 4 FrontPage 5 0 2 2635 Server at ---- CENSORED ---- Port 80        SERVER SOFTWARE    gt    string 125   Apache 2 2 19  Unix  mod ssl 2 2 19 OpenSSL 0 9 8e-fips-rhel5 mod auth passthrough 2 1 mod bwlimited 1 4 FrontPage 5 0 2 2635      UNIQUE ID    gt    string 24   UYUNcUPeiDsAABkR2eYAAAAj      PHP SELF    gt    string 12    referer php      REQUEST TIME    gt    int 1367674225      argv    gt    array 0            argc    gt    int 0

User · Answer

SERVER  HTTP REFERER      But if you run a file  that contains the above code  by directly hitting the URL in the browser then you get the following error      Notice  Undefined index  HTTP REFERER

User · Answer

Underscore  Not space     SERVER  HTTP REFERER

User · Answer

SERVER  HTTP REFERER   will give you the referrer page s URL if there exists any  If users use a bookmark or directly visit your site by manually typing in the URL  http referer will be empty  Also if the users are posting to your page programatically  CURL  then they re not obliged to set the http referer as well  You re missing all    is that a typo

User · Answer

If   SERVER  HTTP REFERER   variable doesn t seems to work  then you can either use Google Analytics or AddThis Analytics

[php] PHP: How to get referrer URL?

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