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POstrange behavior in my statistics php script
 

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  1. POstrange behavior in my statistics php script
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    <p>i ve just created a website, where in the admin panel there is a statsitics module that is very important, and that recognize if an user visit the website for the first time (<strong>unique</strong>) or has already visit the website (<strong>raw</strong>).</p> <p>to recognize if the user is unique or not, the script check if the ip is the same or if a cookie exist (on the same day).</p> <pre><code>if( isset( $_COOKIE['c'] ) &amp;&amp; !empty( $_COOKIE['c'] ) &amp;&amp; ctype_alnum( $_COOKIE['c'] ) ) { $cookie = secure_field( $_COOKIE['c'] ); } else { $cookie = NULL; } $res = mysqli_query( $con, "SELECT id FROM table WHERE ( ip = '$ip' OR id = '$cookie' ) AND DATE_FORMAT( datetime, '%d.%m.%y' ) = DATE_FORMAT( now(), '%d.%m.%y' ) ORDER BY datetime DESC LIMIT 1" ); if( mysqli_num_rows( $res ) == 0 ) { $unique = 1; } else { $unique = 0; } </code></pre> <p>with me this script work perfectly (i've try with many browser, deleting cookie, change IP,..). But now i ve just see a strange behavior with an user, that use the same IP but all it's visits are registred as UNIQUE! </p> <p>here the registred records (i've masked the ip for privacy):</p> <pre><code>2013-09-09 06:06:05 unique 112.201.***.*** Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (K... 2013-09-09 06:06:14 unique 112.201.***.*** Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (K... 2013-09-09 06:11:58 unique 112.201.***.*** Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (K... 2013-09-09 06:14:11 unique 112.201.***.*** Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (K... 2013-09-09 06:17:05 unique 112.201.***.*** Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (K... 2013-09-09 06:17:15 unique 112.201.***.*** Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (K.. </code></pre> <p>How is that possibile? and how i can fix that?</p>
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