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POPHP setcookie() with pre-server side processing?
 

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  1. POPHP setcookie() with pre-server side processing?
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    <p>I have a simple pagelog code. Basicly, it checks to see if there is a VisitorID cookie, if not it queries my database, gets the next available number then I want to set that as the VisitorID cookie. The problem is when I try to run it, I get that "Cannot modify header information - headers already sent by ... bla.. bla.. bla". In PHP how can I set a cookie if I dont know what I want to set it to yet?</p> <p>Here is my code that I include on the page before anything is written to the browser:</p> <pre><code>&lt;?php $Browser = $_SERVER["HTTP_USER_AGENT"]; $TheTable = "PageVisits"; if (strripos($Browser,"mozilla") &lt; 0|| strripos($Browser,"search") &gt; 0 || strripos($Browser,"bot") &gt; 0 || strripos($Browser,"scoutjet") &gt; 0 || strripos($Browser,"ask jeeves/teoma") &gt; 0 || strripos($Browser,"slurp") &gt; 0 ) { $TheTable = "BotVisits"; } $IPAddress = $_SERVER["REMOTE_ADDR"]; $AcceptedTypes = $_SERVER["HTTP_ACCEPT"]; $Referer = $_SERVER["HTTP_REFERER"]; $VisitorID = $_COOKIE["VisitorID"]; //Get VisitorID if (strlen($VisitorID) == 0) { $SqlStr = "SELECT IF(IsNull(MAX(VisitorID)), 1, MAX(VisitorID) + 1) AS NewVistorID " . "FROM " . $TheTable . " "; $con = mysql_connect("DBServer","DBUserName","DBPassword"); mysql_select_db("ratpackc_ratpack", $con); $result = mysql_query($SqlStr); $VisitorID = mysql_result($result, 0); mysql_close($con); } //Update page log $SqlStr = "INSERT INTO " . $TheTable . " " . "(VisitorID, IPAddress, ThePage, Referer, Browser, AcceptedTypes) " . "VALUES (" . $VisitorID . ",'" . $IPAddress . "','" . $ThisPage . "','" . $Referer . "','" . $Browser . "','" . $AcceptedTypes . "')" ; $con = mysql_connect("DBServer","DBUserName","DBPassword"); mysql_select_db("ratpackc_ratpack", $con); mysql_query($SqlStr); mysql_close($con); $CookieExpire = time()+31536000; setcookie("VisitorID", $VisitorID, $CookieExpire); . ?&gt; </code></pre>
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