Populate drop down list, pass two variables - php

Question

I am wanting to populate a drop down list from another mysql table and then assign the values from two of the columns into variables - i.e. "select name, eid, perc from employee". "John Doe" would be $eid = 1234 and $perc = 20.
Any help with this would be greatly appreciated!
Thank you - Matt
Here is the code I have been working with:
PHP
<?php
//session_start();
$page_title = 'New invoice';
include ('includes/header.html');
// Check for form submission:
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
require ('mysqli_connect.php'); // Connect to the db.
/*$errors = array(); // Initialize an error array. */
// Invoice number is automatic
if (empty($_POST['op1'])) {
$errors[] = 'Operation needs to be entered.';
} else {
$op1 = mysqli_real_escape_string($dbc, trim($_POST['op1']));
}
// Amount:
if (empty($_POST['amount1'])) {
$errors[] = 'Amount to be charged.';
} else {
$amount1 = mysqli_real_escape_string($dbc, trim($_POST['amount1']));
}
// percentage:
if (empty($_POST['perc'])) {
$errors[] = 'Select a percentage.';
} else {
$perc = mysqli_real_escape_string($dbc, trim($_POST['perc']));
}
// eid:
if (empty($_POST['eid'])) {
$errors[] = 'Enter a techician.';
} else {
$eid = mysqli_real_escape_string($dbc, trim($_POST['eid']));
}
// Stocknum:
if (empty($_POST['stocknum'])) {
$errors[] = 'Need a stock number.';
} else {
$stocknum = mysqli_real_escape_string($dbc, trim($_POST['stocknum']));
}
// Stocknum:
if (empty($_POST['myear'])) {
$errors[] = 'Enter vehicle year.';
} else {
$myear = mysqli_real_escape_string($dbc, trim($_POST['myear']));
}
if (empty($_POST['make'])) {
$errors[] = 'Enter vehicle make.';
} else {
$make = mysqli_real_escape_string($dbc, trim($_POST['make']));
}
if (empty($_POST['model'])) {
$errors[] = 'Enter vehicle model.';
} else {
$model = mysqli_real_escape_string($dbc, trim($_POST['model']));
}
if (empty($_POST['vin'])) {
$errors[] = 'Enter last 6 of the VIN.';
} else {
$vin = mysqli_real_escape_string($dbc, trim($_POST['vin']));
}
if (empty($_POST['mileage'])) {
$errors[] = 'Enter current mileage.';
} else {
$mileage = mysqli_real_escape_string($dbc, trim($_POST['mileage']));
}
if (empty($errors)) { // If everything's OK.
$q = "INSERT INTO `mwcc`.`wp` (`tdate`, `stocknum`, `myear`, `make`, `model`,`vin`, `eid`, `op1`, `amount1`,`mileage`,`ecomm`) VALUES (CURRENT_DATE(), '$stocknum', '$myear', '$make', '$model','$vin', '$eid', '$op1', '$amount1','$mileage', ($amount1*$perc));";
$r = #mysqli_query ($dbc, $q); // Run the query.
//echo ($q);
if ($r) { // If it ran OK.
// Print a message:
echo '<h1>Success!</h1>
<p>Invoice has been created!<br /></p>';
} else { // If it did not run OK.
// Public message:
echo '<h1>System Error</h1>
<p class="error">Uh oh. There has been an error. We apologize for any inconvenience.</p>';
// Debugging message:
echo '<p>' . mysqli_error($dbc) . '<br /><br />Query: ' . $q . '</p>';
} // End of if ($r) IF.
mysqli_close($dbc); // Close the database connection.
exit();
} else { // Report the errors.
echo '<h1>Error!</h1>
<p class="error">The following error(s) occurred:<br />';
foreach ($errors as $msg) { // Print each error.
echo " - $msg<br />\n";
}
echo '</p><p>Please try again.</p><p><br /></p>';
} // End of if (empty($errors)) IF.
mysqli_close($dbc); // Close the database connection.
} // End of the main Submit conditional.
?>
HTML :
<form action="newinv.php" method="post">
<p>Stock #
<input type="text" name="stocknum" size="15" maxlength="20" value="<?php if (isset($_POST['stocknum'])) echo $_POST['stocknum']; ?>" />
Last 6 of VIN
<input type="text" name="vin" size="15" maxlength="6" value="<?php if (isset($_GET['vin'])) echo $_POST['vin']; ?>" /> </p>
<p>Year
<input type="text" name="myear" size="4" maxlength="4" value="<?php if (isset($_POST['myear'])) echo $_POST['myear']; ?>" />
Make
<input type="text" name="make" size="30" maxlength="20" value="<?php if (isset($_POST['make'])) echo $_POST['make']; ?>" />
Model
<input type="text" name="model" size="30" maxlength="20" value="<?php if (isset($_POST['model'])) echo $_POST['model']; ?>" /></p>
Mileage
<input type="text" name="mileage" sizesize="15" maxlength="6" value="<?php if (isset($_POST['mileage'])) echo $_POST['mileage']; ?>" /> </p>
<p>Operation <input type="text" name="op1" size="60" maxlength="250" value="<?php if (isset($_POST['op1'])) echo $_POST['op1']; ?>" />
Amount <input type="text" name="amount1" size="8" maxlength="20" value="<?php if (isset($_POST['amount1'])) echo $_POST['amount1']; ?>" /></p>
<br>
<input type="radio" name="eid" value="1767">Alex H<br>
<input type="radio" name="eid" value="1688">Blake S<br>
<input type="radio" name="eid" value="1506">Brian M<br>
<input type="radio" name="eid" value="1898">Chris V<br>
<input type="radio" name="eid" value="3000">Kim R<br>
<input type="radio" name="eid" value="1916">Jorden U<br>
<input type="radio" name="eid" value="1931">Tina M<br>
<input type="radio" name="eid" value="1506">Tanner C<br>
<br>
<input type="radio" name="perc" value=".35">35%
<br>
<input type="radio" name="perc" value=".40">40%
<p><input type="submit" name="submit" value="Add" /></p>
</form>

Answer 1

My understanding from your question.
Get query result as you mentioned.select name, eid, perc from employee
For Front End if you want pass both values in single select then use some unique separator like i'm using double underscore __
<?php foreach($result as $user): ?>
<select name="eid__perc" >
<option value="<?php $user->eid . '__' . $user->perc?>">
<?php $user->name; //in array case $user['name'];?>
<option>
<select>
<?php endforeach;?>
And when you save information use same separator to explode data like
list($eid, $perc) = explode('__', $_POST['eid__per'])

Answer 2

You need to use WHERE condition for that:
SELECT name, eid, perc FROM employee WHERE eid = ? AND perc = ?
Than use mysqli_stmt_bind_param($stmt, 'ss', $eid, $perc); to bind parameters.