Inserting Values into MySQL table with PHP -


i have php array has several values in it, corresponding different banner ads. let's $a called, 0th value in array. have field in table impressions, likewise called 0, holds integer. want call integer field, increment it, , put in same row.

to oversimplify. want call number of impressions current ad shown has. ad $a has 500 impressions. want increment number, 501, , put in table.

i hope explained enough. here's code far:

$ads = array($a, $b, $c, $d, $e, $f, $g, $h, $i, $j); $rand = rand(0,9); print($ads[$rand]); $writevar = $rand;  $con = mysql_connect("localhost","delives0_ads","ads"); if (!$con)   {   die('could not connect: ' . mysql_error());   }  mysql_select_db("delives0_ads", $con); $sqlcmd = mysql_query("select * impressions ('$writevar');"); $sqlcmd++; mysql_query("insert impressions ('$writevar`) values ('$sqlcmd');"); mysql_close($con);

edit: here structure in sql

create table if not exists `impressions` (   `0` int(11) not null,   `1` int(11) not null,   `2` int(11) not null,   `3` int(11) not null,   `4` int(11) not null,   `5` int(11) not null,   `6` int(11) not null,   `7` int(11) not null,   `8` int(11) not null,   `9` int(11) not null ) engine=myisam default charset=latin1;

you not need select , update query increment column in table.

just send 1 update query [example]:

update impressions set views = views + 1 ad_id = 3

throw out code you've written none of posted correct. not use database table designed.

if might suggest book or two:

http://www.amazon.com/build-database-driven-using-mysql/dp/0980576814/ref=dp_ob_title_bk

http://www.amazon.com/simply-sql-rudy-limeback/dp/0980455251


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