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php header location causes redirect loop

Thread began 2/05/2016 3:07 pm by Sweens | Last modified 2/17/2016 2:04 pm by Sweens | 1677 views | 3 replies


php header location causes redirect loop


Hope someone can help with this, as it is a general php question, not related to a problem with any WA product.

I've moved from parameter based pages to 'friendly urls', using the following excerpt from my htaccess file:

RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/content\.php\?su=([^\s&]+)&PgID=(\d+)&pu=([^\s&]+) [NC]
RewriteRule ^ /%1/%2/%3? [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/(\d+)/([^/]+)\.html$ /content.php?su=$1&PgID=$2&pu=$3 [L,QSA]

All the above works fine.

However, if a visitor goes to a page from a search engine, say, and the pg_url has been updated; I'd like to change the url shown in the address bar.
The correct page is still found, from the PgID number, but the pg_url in the search engine might be /page-name.html but the new name is actually /better-name.html

I've tried this (from in php using the following (and variants of it), but the page always fails because of a redirect loop;

if ($_SERVER['REQUEST_URI'] <> '/". $WADApages->getColumnVal("short_url"). "/". $WADApages->getColumnVal("PgID") ."/". $WADApages->getColumnVal("pg_url") .".html') {
header("HTTP/1.1 301 Moved Permanently");
header("Location: /". $WADApages->getColumnVal("short_url"). "/". $WADApages->getColumnVal("PgID") ."/". $WADApages->getColumnVal("pg_url") .".html");

Very grateful to any pointers - I have tried numerous variants with the same results.

Many thanks

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