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--- hints [2016/03/27 17:11]
admin
+++ hints [2016/03/27 17:11] (current)
@@ Line 1: / Line 1: @@
+====== Hints ======
+===== PHP Includes  =====
+Some people include files like
+include('http://otherdomain/1.html');
+or
+virtual('/scj/top/top.html');
+or
+readfile('http://domsin/1.html')
+moreover they use it may times per page.
+You should NOT use it.
+**Why:**
+PHP creates page BEFORE user gets it. So if you have something like include('http://otherdomain/1.html') PHP has to load that page each time user load a page with that include.
+There 2 downsides of this approach:
+  * PHP create a regular connection to that host requesting a page. If you have 10 such includes - 1 request to such page generates 10 subrequests loading server.
+  * If for some reason PHP won't be able to connect to that domain and load that page - it will wait and first page won't be loaded until PHP gets that include. So if that otherdomain is down - first domain will be virtually down too.
+**What to do:**
+Use only local includes.
+Ie virtual('/scj/top/top.html') should be include('/home/user/domain/scj/top/top.html');
+if file is located at another server - ask admin to setup rsync or copy file using crontab and so on.
+**Including local script with parameters**
+Let's say you have include like
+<code>
+<?php
+include('http://domain.com/banner.php?x=3&y=2');
+?>
+</code>
+so you have some parameters here. You can pass it as
+<code>
+<?php
+$_GET['x'] = 3;
+$_GET['y'] = 2;
+include('banner.php');
+?>
+</code>
+===== Close site for some countries =====
+Example for .htaccess
+<code>
+RewriteEngine on
+RewriteCond %{ENV:GEOIP_COUNTRY_CODE} ^(RU|CN)$ [NC]
+RewriteRule ^$ http://google.com [R,L]
+</code>
+===== Count productivity from feeders =====
+There's a common task how to select feed traders (let's say when you buy traffic at at a traffic exchange) based on it's productivity.
+The easiest way is to switch on the option "add notrade as feed traders" in Cj settings - Processed Data. Thus the script will add all new referers as traders and you will be able to see all the stats for each domain you get traffic from.

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