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Displaying the other values in the table on select option from database

i have a select option, after selecting a brand I successfully get/display the brand name but I want also the other values be displayed like price, with or without refreshing the page.
<?php
require_once 'config.php';
echo '<select class="form-control action" name="tran_description" value="<?
php echo $tran_description; ?>" style="background-color:#F0F0F0">';
$sql = mysqli_query($mysqli, 'SELECT * FROM products order by product_id');
while ($row = $sql->fetch_assoc()){
echo '<option id="' . $row['product_id'] . '"';
echo ' value="' . $row['description'] . '" ';
echo ' value="' . $row['price'] . '" ';
if($row['description'] == $tran_description) {
if($row['price'] == $tran_price) {
$tran_price = $row['price'];
echo ' selected="selected"';
}
}
if($row['product_id'] == $row['description']) {
echo ' selected="selected"';
}
echo '>';
echo $row['description'];
echo '</option>';
}
echo '</select>';
?>
I can get the value of the description but the price I couldnt. In one select option representing the brand or description I want also the price value of that brand I selected be assign to a variable so I can do arithmetic operation in the back code without seeing it.Thanks.

You are using wrong HTML structure only the first attribute is being used while the other is being ignored in the DOM .The right way to store multiple values in a single select can be like this:
<select name="">
<option value="{'num_sequence':[0,1,2,3]}">Option one</option>
<option value="{'foo':'bar','one':'two'}">Option two</option>
</select>
In your case it should be like this:
echo '<option id="' . $row['product_id'] . '"';
// echo ' value="{ /"description:/"' . $row['description'] . ', /"price:/"' . $row['price'] . ' }" ';
echo ' value="' .
json_encode(['description'=>$row['description'], 'price'=>$row['price']) .
'">";
Then to get the value you'll do is:
$description = $_POST['NameOfSelectInput']['description'];
$price = $_POST['NameOfSelectInput']['price'];
If you want to get the value in javascript, using jQuery, for example, you could do:
var value = JSON.parse($('#select_id').val()); // use id of your select control
var price = value.price;
var description = value.description;
You should do appropriate error checking...
For more details refer here:
Can an Option in a Select tag carry multiple values?

Add new selection with options from database

I have a function to add a new selection using button in the table with ID="maTable"
<button type="button" onclick ="addNew()"> Add More Agent</button>
Using JS :
function Addnew(){
var table=document.getElementById("maTable");
var row=table.insertRow([table.rows.length]-1);
var len=(table.rows.length);
var newid="agentID"+len;
var newida="agentGroup"+len;
var cell1=row.insertCell;
var cell2=row.insertCell;
var cell3=row.insertCell;
var new_optionAgent =
"<select class=\"opsi\"id="'+newida+'">"
+"<option selected=\"selected\"disabled=\"disabled\">Agent<\/option>"
+"<option value=\"agentA\">Agent A<\/option>"
+"<option value=\"agentB\">Agent B<\/option>"
+"<option value=\"agentC\">Agent C<\/option>"
+"<option value=\"agentD\">Agent D<\/option>"
+"<\/select>"
cell1.innerHTML="Choose Agent" +" "+len;
cell2.innerHTML=":";
cell3.innerHTML= new_optionAgent;
}
With this I can get a button that will generate a new selection with 4 options (it works). But now come the problem when I want to change the option with the list from database. Im using php and postgres database. I made the code for the one that isn't generated from the "AddNew" button yet :
<?php
$que=pg_query("SELECT agentname FROM Agent");
echo "<select name=\"agentname1\"class=\"opsi\" id=\"agentGroup1\" required>";
echo "<option value=\"\" selected=\"selected\"disabled='disabled'>Agent</option>";
While($row=pg_fetch_array($que))
{
echo '<option value="'.$row['agentname'].'"> '.$row['agentname'].'</option>';
}
echo "</select>";
?>
Now I want to make the "AddNew" button that generate a selection with option list from database. I have combined the php code with variable "new_optionAgent" by adding "\" to some symbols. but it doesnt work.
I combine like this
var new_optionAgent =
'<\?php
\$que=pg_query(\"SELECT agentname FROM Agent\")\;
echo \'<select name=\\\"agentname1\\\"class=\\\"opsi\\\" id=\\\"agentGroup1\\\" required>\'\;
echo \'<option value=\\\"\\\" selected=\\\"selected\\\"disabled=\\\'disabled\\\'>Agent</option>\'\;
While(\$row=pg_fetch_array(\$que))
{
echo \'<option value=\"\'\.$row[\'agentname\']\.\'\"> \'\.$row[\'agentname\']\.\'</option>\'\;
}
echo \"<\/select>\"\;
\?>'
this combination is seems very wrong, Any help? Thank you

This is not working because the escaped backslashes is used by PHP for escaping the double quotes. So you will need to add another set of backslases and escape those, or use a single quote string in PHP:
<?php
$que=pg_query("SELECT agentname FROM Agent");
echo '<select name=\"agentname1\"class=\"opsi\" id=\"agentGroup1\" required>';
echo '<option value=\"\" selected=\"selected\"disabled=\'disabled\'>Agent</option>';
While($row=pg_fetch_array($que))
{
echo '<option value="'.$row['agentname'].'"> '.$row['agentname'].'</option>';
}
echo "</select>";
?>
Edit
You can't inline PHP inside a Javascript variable like that. Try this:
<?php
$que=pg_query("SELECT agentname FROM Agent");
$whateverYouWannaCallThisString = '';
$whateverYouWannaCallThisString .= '<select name=\"agentname1\"class=\"opsi\" id=\"agentGroup1\" required>';
$whateverYouWannaCallThisString .= '<option value=\"\" selected=\"selected\"disabled=\'disabled\'>Agent</option>';
While($row=pg_fetch_array($que))
{
$whateverYouWannaCallThisString .= '<option value="'.$row['agentname'].'"> '.$row['agentname'].'</option>';
}
$whateverYouWannaCallThisString .= "</select>";
?>
<script type="text/javascript">
var new_optionAgent = "<?php echo $whateverYouWannaCallThisString; ?>";
</script>
More info on escaping
The whole reason you are escaping characters is because you are using characters that surrounds the string itself. E.g: If you are defining a string with double quotes " like this: var myString = "Yolo" and you want to have double quotes " in that string like this: var myString = "Dude, wheres "my" car" then you need to escape the double quotes " thats inside that string like this: var myString = "Dude, wheres \"my\" car".
The same applies to PHP
//Edit :
I edited the variable :
var new_optionAgent =
<?php echo json_encode($whateverYouWannaCallThisString); ?>;
and it works :)

Oop check if database table is empty

I have a selector wich gets information from the database. But when my database table is empty, the selector still shows up like this:
However, when my database is empty. I don't want to show the selector. but a message that says something like: Database is empty! Add something.
My code for the selector:
$results = $database->Selector();
echo "<form name='form' method='POST' id='selector'>";
echo "<select name='train_name' id='train_name' multiple='multiple'>";
// Loop trough the results and make an option of every train_name
foreach($results as $res){
echo "<option value=" . $res['train_name'] . ">" . $res['train_name'] . "</option>";
}
echo "</select>";
echo "<br />" . "<td>" . "<input type='submit' name='Add' value='Add to list'/>" . "</td>";
echo "</form>";
The function:
function selector() {
$sql = "SELECT train_name, train_id FROM train_information ORDER BY train_name";
$sth = $this->pdo->prepare($sql);
$sth->execute();
return $sth->fetchAll();
}
EDIT:
Got this now:
$results = $database->Selector();
if(count($results) > 0) {
//Form etc here//
}else echo "nope";
It is working now! :D

PHP Counter not working, can't update MySQL Database

I'm editing some PHP/Javascript codes that control a MySQL Database, and there is an issue where I cannot update old database entries. There are two php files--update.php and success.php.
In the update.php, there is a counter, $c, that is a variable for the rows in order to tell them apart. In success.php, it takes, I presume, the number that $c is (named 'count'), and results into the value for $i. The code is below--
Update.php:
<?php
$c = 0;
while ($row=mysql_fetch_row($result))
{
echo"<tr>";
echo "<td><div class='required'><input type=\"text\" name=\"".$c."ID\" onchange=\"turnWhite(this)\" size=\"7\" value= \"" .$row[3]."\"></div></td>";
echo "<td><select name='".$c."Dataset1' onchange=\"return CheckData(".$c.")\">
<option value='".$row[0]."'>".$row[0]."</option>";
$result1=mysql_query('SELECT Data FROM Database.Table2 ORDER BY Data');
while ($row1=mysql_fetch_row($result1))
{
echo '<option>' . $row[0]. '</option>';
}
echo "</select></td>";
echo "<td><select name='".$c."Dataset2' onchange=\"return CheckData(".$c."\">
<option value='".$row[1]."'>".$row[1]."</option>";
$result=mysql_query('SELECT Data FROM Database.Table2 ORDER BY Data');
while ($row1=mysql_fetch_row($result1))
{
echo '<option>' . $row[0]. '</option>';
}
echo "<td><input type=\"text\" id=\"".$c."Dataset_column2\" name=\"".$c."Dataset_column1\" size=\"30\" value= \"" .$row[2]."\"></td>;
echo "<td><input type=\"text\" name=\"".$c."Dataset_column3\" size=\"30\" value= \"" .$row[3]."\"></td>;
echo "<td><div id='centerbutton'><input type='button' value='Update' onclick='validate(".$c."); return false;' /></div></td>";
$rows = "where 1=1 and `COLUMN2` ='" .$row[2]."' and `COLUMN3` ='".$row[3]."'";
echo "<input type=\"hidden\" name=\"where".$c."\" value=\"".$rows."\">";
$c++;
Success.php:
$previous_URL = $_SERVER['HTTP_REFERER'];
$empty = "";
if(strpos($previous_URL,'update.php') !== false)
{
$i = $_GET['count'];
if ($_FILES[$i."file"]["error"] > 0)
{
}
else
{
}
if (file_exists("C:/Web_content/Upload/" . $_FILES[$i."file"]["name"]))
{
echo "A file of this name already exists.
Please rename your file and upload it again.";
}
if ($stmt = $mysqli->prepare("UPDATE `table` SET `COLUMN2` = ?,
`COLUMN3` = ? ". $_POST['where'.$i] ))
I left some extra code out. My question is, what is it echoing, and how exactly does the $c counter work in update.php. And also in the success.php, what is the $i variable resulting into when it $_GET['count']. I keep getting the error code "A file of this name already exists.
Please rename your file and upload it again" but I'm not even uploading a file (in another column that I left out). Is it a problem in the update or success page? Why isn't up letting me update old database entries in MySQL through these codes?
Also, on a separate issue (but same php codes), sometimes when I try to update my new data, it would give me an error code saying that "A file exists" but under that it'd say "Notice: Undefined index: where170 in C:\Web_content\success.php" on the line where $_POST['where'.$i] is.
And then all my data would turn into NULL (so everything would be gone. But I backed my data up so I simply just import back my data when this happens).
Thank you in advance!

Javascript/PHP redirect

Hello fellow programmers!
I'm working on a personal project (mainly to learn php/javascript) and have ran into an issue with redirection when clicking on a link. I have a bit of a strange situation on a tabbed page I've created and I think that may be what is causing my problem.
I'm trying to allow the user to click the (which due to css has made it look different than normal ) to redirect them to a new page with more details. I THINK that the second tag on my page is what is throwing me off because I have a form in it.
I have tried tons of different things like window.location.href="", location.href="", document.location="", etc... But the same thing always occurs. I am able to get both alert messages, so I know I am getting into my JavaScript (even when I put it into it's own .js file).
Anyway advice/help would be very helpful. Also, if anyone has a suggestion on cleaning this code up a bit, that would also be truly helpful.
Below is basically what I have.
Thanks in advance for your help!
<html>
<head>
<title>test site</title>
<link rel="stylesheet" href="test.css" type="text/css" media="screen" />
<script src="test.js" type="text/javascript"></script>
<script type="text/javascript">
function viewDetails(modelId){
alert(modelId);
window.location.href="new url?ModelID=" + modelId;
alert('redirecting would be way awesome...');
}
</script>
</head>
<body onload="load()">
<div id="tabbed_box_1" class="tabbed_box">
<h4>Navigation Tabs<small>Select a tab</small></h4>
<div class="tabbed_area">
<?php
mysql_connect('host','user','password');
mysql_select_db("database");
echo "<ul class='tabs'>";
echo "<li><a href='javascript:tabSwitch(1, 2);' id='tab_1' class='active'>Inventory</a></li>";
echo "<li><a href='javascript:tabSwitch(2, 2);' id='tab_2' >Add Project</a></li>";
echo "</ul>";
echo "<div id='content_1' class='content'>";
echo "<ul>";
$modelsSQL = "SELECT * FROM Model ORDER BY Name";
$modelsResult = mysql_query($modelsSQL);
while ($modelRow = mysql_fetch_array($modelsResult)){
$modelID = $modelRow[0];
$sqlAvailCount = "SELECT * FROM Project WHERE ModelID = " . $modelID . " AND Sold = 0";
$sqlSoldCount = "SELECT * FROM Project WHERE ModelID = " . $modelID . " AND Sold = 1";
$resultAvailCount = mysql_query($sqlAvailCount);
$resultSoldCount = mysql_query($sqlSoldCount);
$rowAvailCount = mysql_num_rows($resultAvailCount);
$rowSoldCount = mysql_num_rows($resultSoldCount);
echo "<li><a href='' onclick='javascript:viewDetails($modelID);'>" . $modelRow[1] . "<small>in stock: <value>"
. $rowAvailCount . "</value> sold: <value>" . $rowSoldCount . "</value></small></a></li>";
}
echo "</ul>";
echo "</div>";
echo "<div id='content_2' class='content'>";
echo "<form action='project_insert.php' method='post' name='projectAddForm'>";
echo "<table cellpadding='5'>";
// Project Model Selection
echo "<tr><td>";
echo "<label for='model'>Model</label>";
echo "</td><td>";
echo "<select name='model' style='width: 250px;'>";
echo "<option value='-1' selected>SELECT</option>";
$modelListSQL = "SELECT * FROM Model ORDER BY Name";
$modelListResult = mysql_query($modelListSQL);
while ($modelListRow = mysql_fetch_array($modelListResult)){
echo "<option value='" . $modelListRow['ID'] . "'>" . $modelListRow['Name'] . "</option>";
}
echo "</select>";
echo "</td></tr>";
// Project Material Selection
echo "<tr><td>";
echo "<label for='material'>material</label>";
echo "</td><td>";
echo "<select name='material' style='width: 250px;'>";
echo "<option value='-1' selected>SELECT</option>";
$materialListSQL = "SELECT * FROM Material ORDER BY Name";
$materialListResult = mysql_query($materialListSQL);
while ($materialListRow = mysql_fetch_array($materialListResult)){
echo "<option value='" . $materialListRow['ID'] . "'>" . $materialListRow['Name'] . "</option>";
}
echo "</select>";
echo "</td></tr>";
// Project Finish Selection
echo "<tr><td>";
echo "<label for='finish'>finish</label>";
echo "</td><td>";
echo "<select name='finish' style='width: 250px;'>";
echo "<option value='-1' selected>SELECT</option>";
$finishListSQL = "SELECT * FROM Finish ORDER BY Name";
$finishListResult = mysql_query($finishListSQL);
while ($finishListRow = mysql_fetch_array($finishListResult))
{
echo "<option value='" . $finishListRow['ID'] . "'>" . $finishListRow['Name'] . "</option>";
}
echo "</select>";
echo "</td></tr>";
// Project Craftsman Selection
echo "<tr><td>";
echo "<label for='craftsman'>craftsman</label>";
echo "</td><td>";
echo "<select name='craftsman' style='width: 250px;'>";
echo "<option value='-1' selected>SELECT</option>";
$craftsmanListSQL = "SELECT * FROM Craftsman ORDER BY FirstName";
$craftsmanListResult = mysql_query($craftsmanListSQL);
while ($craftsmanListRow = mysql_fetch_array($craftsmanListResult)){
echo "<option value='" . $craftsmanListRow['ID'] . "'>" . $craftsmanListRow['FirstName'] . " " . $craftsmanListRow['LastName'] . "</option>";
}
echo "</select>";
echo "</td></tr>";
//Project Description
echo "<tr><td>";
echo "<label for='description'>Description</label>";
echo "</td><td>";
echo "<input type='text' name='description' id='textArea' style='width:250px'>";
echo "</td></tr>";
// Project Selling Price
echo "<tr><td>";
echo "<label for='price'>Price</label>";
echo "</td><td>";
echo "<input id='price' name='price' type='number' style='width:150px'>";
echo "</td></tr>";
// Project Completion Date
echo "<tr><td>";
echo "<label for='date'>Finish Date</label>";
echo "</td><td>";
$dateArray = getdate();
$month = $dateArray[mon];
$day = $dateArray[mday];
if ($month < 10){
$month = '0' . $dateArray[mon];
}
if ($day < 10){
$day = '0' . $dateArray[mday];
}
$todaysDate = $dateArray[year] . '-' . $month . '-' . $day;
echo "<input type='date' name='date' value='" . $todaysDate . "' style='width:150px'>";
echo "</td></tr>";
// Buttons
echo "<tr><td align='center'>";
echo "<input type='button' name='Save' value='Save' onclick='javascript:validateAndSubmit(this.form);' style='width:100px'>";
echo "</td><td align='center'>";
echo "<input type='button' name='Cancel' value='Cancel' onclick='javascript:cancelEntry();' style='width:100px'>";
echo "</td></tr>";
echo "</table>";
echo "</form>";
echo "</div>";
?>
</div>
</div>
</body>

window.location.href may not trigger reload in some browsers and cases..
You should add a reload after
like this:
window.location.href = '/foo/bar/';
window.locaton.reload(true)
But, some browsers delay milliseconds to perform location.href set. In this cases the window.location.reload(true) may complete before this.
Therefore, add a timeout in reload:
window.location.href = '/foo/bar/';
setTimeout('window.locaton.reload(true)', 500);
works in all browsers for me

Good morning! I found the cause of my problem this morning and have been able to resolve the issue. The problem I was causing is because I am using the tag (stylized by css) to display the information, with an onclick event to call my JS code to redirect. Within the tag I had the href='', thinking that the JS would override that functionality, it doesn't!
Removing the href='' from the tag resolved the issue and allowed me to redirect to the new page. A second solution is to use my php code to dynamically create the href link within the tag.
echo "<li><a onclick='viewDetails($modelID);'>" . $modelRow[1] . "<small>in stock: <value>" . $rowAvailCount . "</value> sold: <value>" . $rowSoldCount . "</value></small></a></li>";
OR
echo "<li><a href='inventorydetails.php?ModelID=" . $modelID . "'>" . $modelRow[1] . "<small>in stock: <value>" . $rowAvailCount . "</value> sold: <value>" . $rowSoldCount . "</value></small></a></li>";
I think I will go with the second example for two reasons. First, it provides the link icon when hovering (which I know I can add through css, but this is easier. Second, less JS code.
I thank you for all your help in resolving this!