How to Update this Table? using Php / Mysql -

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code in "inc/q/prof.php":

<?php // insert comments database user provides $comm = mysql_real_escape_string($_post['addcomment']);  // following line has changed: $pid4 = filter_var( $_post['pid'], filter_sanitize_string );  $commentdetail = $_post['addcomment']; $username = "###"; $password = "###"; $pdo4 = new pdo('mysql:host=localhost;dbname=####', $username, $password); $pdo4->setattribute( pdo::attr_errmode, pdo::errmode_exception ); $sth4 = $pdo4->prepare(' insert comment (info, pid, cid) values(?,?,?)  select comm.cid professor p, comment comm, course cou  p.pid = comm.pid , cou.cid = comm.cid; ');  $sth4->execute(array($commentdetail, $pid4, $cid ));   ?>

html

<form action='inc/q/prof.php' method='post'>                     <input type='text' id='addcomment' name='addcomment' tabindex='3' value='enter comment' />                 <input type='hidden' name='pid' value='<?php echo $pid4; ?>'>                  </form>

tables: comm course prof

error still received - still getting error: you have error in sql syntax; check manual corresponds mysql server version right syntax use near 'select comm.cid professor p, comment comm, course cou p.pid = comm.p' @ line 2\pdostatement->execute(array) #1

you can pass them both hidden input fields. appears though have pid:

<input type="hidden" name="pid" value="<?php echo $pid4 ?>" />

also, ensure posting correct fields , values. add following top of prof.php:

print_r($_post);

my guess not passing $_post['pid']


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