PHP mySQL Update page -


i'm trying make simple product page (no login or that) in php , mysql. far, shows on products page fine, can delete/add fine admin page. there i'm trying figure out how create edit function. made form populates mysql table based on productid convenience (edit2.php?id=x) posts edit.php , updates database. far, reusing old code isn't working, somehow hoping simple.

this add product (which works) :

<?php session_start(); if(isset($_post) && isset($_post['hp']) && empty($_post['hp'])) {     if( isset($_session['token']) && $_session['token'] == $_post['token'] ) {         mysql_connect('localhost', 'test_admin', 'test');         mysql_select_db('test_product');         $data = array_map('mysql_real_escape_string', $_post);         $query = "             insert products (                 product_name, price, description, image             ) values (                 '{$data['product_name']}',                 '{$data['price']}',                 '{$data['description']}',                 '{$data['image']}'             )         ";         if(mysql_query($query)) {             echo '<p>your information saved.</p>';             unset($_session['token']);         } else {             echo '<p>there error storing data, please try again later.</p>';         }     } else {         echo '<p>your data has been saved.</p>';     } } else {     echo '<p>error.<br />please try again later.</p>'; } ?>

this update (which throws out syntax error or 'error storing data' :

<?php          mysql_connect('localhost', 'test_admin', 'test');         mysql_select_db('lbriedis_product');           $data = array_map('mysql_real_escape_string', $_post);         $query = "update products id = ".$pageid." (                 product_name, price, description, image             ) values (                 '{$data['product_name']}',                 '{$data['price']}',                 '{$data['description']}',                 '{$data['image']}'             )         ";         if(mysql_query($query)) {             echo '<p>your information saved.</p>';             unset($_session['token']);         } else {             echo '<p>there error storing data, please try again    later.</p>';             echo mysql_error(); //used development , testing         } ?>

i session errors when attempt use session validation because start session on admin page (add product form on admin.php, edit , delete links) ? nevertheless, removed session checks moment i'm struggling more update part.

also i'm not sure of best way pass $pageid update query 'update id = $pageid. have hidden field value (see edit form), how reference correctly?

edit form (values display correctly id = $pageid working here:

<?php         $dol = "$";         $pageid = (int)$_get['id'];          mysql_connect('localhost', 'lbriedis_admin', 'xxxxxx123');         mysql_select_db('lbriedis_product');     $result = mysql_query("select * products id = ".$pageid."");     if($result){   $data = mysql_fetch_assoc($result); }       ?>  <form id="inputform" method="post" action="edit.php">       <fieldset>     <label>pool name:</label>  <?php    echo '<input type="text" name="product_name" value="'.$data['pool_name'].'" />';      ?>       <label>price:</label> <br>      <?php    echo '$&nbsp;<input type="text" name="price" value="'.$data['price'].'" />';     ?>  <br />     <label>description:</label>       <?php    echo '<textarea name="description">'.$data['description'].'</textarea>';     ?>   <label>image:</label></label>   <?php    echo '<input type="text" name="image" value="'.$data['image'].'" />';     ?>       <input type="hidden" name="token" value="<?php echo $_session['token']; ?>" />      <input type="text" id="hp" name="hp" />      <?php    echo '$&nbsp;<input type="hidden" name="$pageid" value="'.$pageid.'" />';     ?>        <br>     <input type="submit" name="submit" value="update" />      </fieldset> </form>

your update query have incorrect sintax

    $query = "update products id = ".$pageid." (             product_name, price, description, image         ) values (             '{$data['product_name']}',             '{$data['price']}',             '{$data['description']}',             '{$data['image']}'         )

correct sintax should be

    $query="update products set             product_name = '".$data['product_name']."',              price ='".$data['price']."',             description = '".$data['description']."',             image = '".$data['image']."'             id = '".$pageid."'

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