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Get value from javascript onclick in php

I am making an page with every video I upload to the database.
They are filtered by date and ordered by date. There is an onclick on every video with JavaScript. With all the value's it has to show on the website.
But when I click on the video it has to filter all the video´s with the tags they have. The only thing it does now, it shows the right tag with the video but not the right tag when I want to filter it. Then it gives me the tag from the video that is posted first.
How do I get the right tag value when there clicked on? when I want to filter the tags?
<?php
$query = $connectie->prepare("SELECT v.VideoID,v.Titel,v.Link,v.Omschrijving,o.Bestandspath, o.Bestandsnaam,o.Onderwerp,t.Naam, DATE_FORMAT(`postDate`,\"%e-%m-%Y %H:%i\")as tijd FROM video v join opdracht o on v.OpdrachtID = o.OpdrachtID JOIN videotag vt on v.VideoID = vt.VideoID
JOIN tag t on vt.TagID = t.TagID order by `postDate` ");
$query->execute();
while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
$link = $row['Link'];
$newLink = str_replace("watch?v=", "embed/", $link);
$data = file_get_contents('https://www.youtube.com/oembed?format=json&url=' . $link);
// echo $newLink;
$json = json_decode($data);
$thumbnail = $json->thumbnail_url;
$title = $json->title;
$onderwerp = $row['Onderwerp'];
$omschrijving = $row['Omschrijving'];
$filePath = $row['Bestandspath'];
$bestandsnaam = $row['Bestandsnaam'];
$videoid = $row['VideoID'];
$tagName = $row['Naam'];
echo 'tagname',$tagName;
echo
'
<div class="scrollbar">
<a id="videoList" name="video" href="#" onclick="getLink(\'' . htmlentities($newLink) . '\',\'' . htmlentities($title) . '\',\'' . htmlentities($onderwerp) . '\',\''.htmlentities($tagName) . '\',\'' . htmlentities($omschrijving) . '\',\'' . htmlentities($bestandsnaam) . '\',\'' . htmlentities($filePath) . '\')">
<img src="' .htmlentities($thumbnail) . '" width="235"/>
<p id="titelText"><b>' . htmlentities($title) . '</b></p>
</a>
</div>
<script>
function getLink(link,titel,onderwerp,tagNaam,omschrijving,bestandsnaam,bestandspath){
document.getElementById("videoFrame").src = link;
document.getElementById("videoFrame").style.display = "block";
document.getElementById("overzicht").style.width = "275px";
document.getElementById("panelInfo").style.display = "block";
document.getElementById("titelVideo").innerHTML = "<b>Titel</b>:"+titel+"<br>";
document.getElementById("onderwerp").innerHTML = "<b>Onderwerp</b>:"+onderwerp+"<br>";
document.getElementById("tagnaam").innerHTML = "<b>Tag</b>:" + tagNaam + "<br>";
document.getElementById("omschrijving").innerHTML = "<b>Omschrijving</b>:"+omschrijving;
document.getElementById("bestand").download = bestandsnaam;
document.getElementById("bestand").href = bestandspath;
}
</script>';
}

JS sequential calling of function fails

I need to exicute one JS function after another sequencually. I can exicute these functions individually and they work but when I put them in a sequence I only get the openPatient() and the openMessage() does not exicute. My JS functions
function openPatient() {
myRestoreSession();
opener.top.RTop.document.location.href = '../patient_file/summary/demographics.php?set_pid=<?php echo attr($ptid); ?>';
}
function openMessage(messageid) {
myRestoreSession();
document.location.href = 'upload_form.php?messageid=' + messageid;
}
My function call:
echo " onclick=\"openPatient().then(openRequest(" .
"'" . addslashes($postid) . "'," .
"'" . addslashes($v1[1]['type']) . "'" .
"))\">" . text($v1[1]['datetime']) . "</td>\n";
This function call exists in this process:
<?php
// Generate a table row for each pending portal request or message.
// This logic merges requests with messages by date.
$v1 = each($result['list']);
$v2 = each($result['messages']);
while ($v1 || $v2) {
echo " <tr class='detail' bgcolor='#ddddff'>\n";
if (!$v2 || $v1 && $v1[1]['datetime'] < $v2[1]['datetime']) {
$postid = $v1[1]['postid'];
$ptname = patientNameFromLogin($v1[1]['user']);
// Get the portal request data.
if (!$postid) die(xlt('Request ID is missing!'));
$result2 = cms_portal_call(array('action' => 'getpost', 'postid' => $postid));
if ($result2['errmsg']) {
die(text($result2['errmsg']));
}
// Look up the patient in OpenEMR.
$ptid = lookup_openemr_patient($result2['post']['user']);
echo " <td>" . text($v1[1]['user']) . "</td>\n";
echo " <td style='cursor:pointer;color:blue;' onclick=\"openPatient()\">" .text($ptname ) . "</td>\n";
echo " <td style='cursor:pointer;color:blue;'";
echo " onclick=\"openPatient().then(openRequest(" .
"'" . addslashes($postid) . "'," .
"'" . addslashes($v1[1]['type']) . "'" .
"))\">" . text($v1[1]['datetime']) . "</td>\n";
echo " <td>" . text($v1[1]['type' ]) . "</td>\n";
echo " <td align='center'><input type='checkbox' name='form_req_cb[" .
attr($postid) . "]' value='" . attr($postid) . "' /></td>\n";
$v1 = each($result['list']);
}
else {
$messageid = $v2[1]['messageid'];
$ptname = patientNameFromLogin($v2[1]['user']);
echo " <td>" . text($v2[1]['user']) . "</td>\n";
echo " <td>" . text($ptname ) . "</td>\n";
echo " <td style='cursor:pointer;color:blue;'";
echo " onclick=\"openMessage(" .
"'" . addslashes($messageid) . "'" .
")\">" . text($v2[1]['datetime']) . "</td>\n";
echo " <td>" . text($v2[1]['user'] == $v2[1]['fromuser'] ?
xl('Message from patient') : xl('Message to patient')) . "</td>\n";
echo " <td align='center'><input type='checkbox' name='form_msg_cb[" .
attr($messageid) . "]' value='" . attr($messageid) . "' /></td>\n";
$v2 = each($result['messages']);
}
echo " </tr>\n";
}
?>
I am thinking part of the problem may be that openPatient() opens in another window. Perhaps it is loosing focus. Any tips to fix this would be appreciated.
EDIT:
What I have tried and helps is adding return this; to openPatient():
function openPatient() {
myRestoreSession();
opener.top.RTop.document.location.href = '../patient_file/summary/demographics.php?set_pid=<?php echo attr($ptid); ?>';
return this;
}
This then executes the next function but the next function executes too soon. it needs to wait for openPatient() to fully load before executing openMessage(). I have tried adding setTimeout( wait, 1000 ); but then openMessage() does not execute at all.

The solution:
The call:
echo " <td style='cursor:pointer;color:blue;'";
echo " onclick=\"openPatient();setTimeout(function(){openRequest(" .
"'" . addslashes($postid) . "'," .
"'" . addslashes($v1[1]['type']) . "'" .
")}, 2500);\">" . text($v1[1]['datetime']) . "</td>\n";
The functions:
function openPatient() {
myRestoreSession();
opener.top.RTop.document.location.href = '../patient_file/summary/demographics.php?set_pid=<?php echo attr($ptid); ?>';
return this;
}
function openMessage(messageid) {
myRestoreSession();
document.location.href = 'upload_form.php?messageid=' + messageid;
}
Keys to success: return this; and the use of the anonymous function with setTimeout in the call.
Posts that helped:
What does "return this" do within a javascript function?
setTimeout delay not working

Instant update on loading of page as opposed to refresh

edit.php
<?php
if (((!empty($_GET["mode"])) && (!empty($_GET["ID"]))) && ($_GET["mode"] == "update")) {
if (isset($_POST["updateSubmit"])) {
if ((!empty($_GET["ID"])) && (!empty($_POST["FilmName"]))
&& (!empty($_POST["Producer"])) && (!empty($_POST["YearPublished"]))
&& (!empty($_POST["Stock"])) && (!empty($_POST["Price"]))) {
$query = "UPDATE ProductConsole "
. "SET FilmName = '" . $_POST["FilmName"] . "', "
. "Producer = '" . $_POST["Producer"] . "', "
. "YearPublished = '" . $_POST["YearPublished"] . "', "
. "Stock = " . $_POST["Stock"] . ", "
. "Price = '" . $_POST["Price"] . "' "
. "WHERE ID=" . $_GET['ID'] . ";";
$result = mysqli_query($connection, $query);
if ($result == false) {
echo "<p>Updating failed.</p>";
} else{
echo "<p><br><br>Updated, please refresh page.</p>"; // CAN I AVOID REFRESHING PAGE?
}
}
}
}
?>
So on the home page you can view products by table. You can click edit to edit that particular row. When I modify a value and navigate back to the home page, I have to manually refresh. Once I've edited the record, I have to refresh the page edit.php for it to retrieve the record. Here is the php for once the page is updated. I assume that's the only code you need. Can anyone help? Thanks

Generating more MYSQL database results when a dropdown list is selected

hope you can help
I want to have a drop down list that searches my mysql database and shows the first and last names of the users. You can then select any of the names and it will generate the rest of the membership details (i.e. date signed up, last logged in etc).
I have got the dropdown list working fine, but my problem comes with the next step of generating the rest of the details. With my below code it just shows the details of the last user who signed up and does not change when I change the name in the drop down menu.
I'm pretty sure I need Javascript to help get this working but as I am a beginner to PHP/MYSQL any advise toward the right direction for me would be great. Thanks
This is the code which searches my database and puts the first and last name in to a drop down list
$sql = "SELECT first_name,last_name FROM registration_tbl";
$query = mysqli_query($dbc, $sql);
echo '<select name="name" style="width: 400px">';
while ($row = mysqli_fetch_assoc($query)){
$firstname = $row['first_name'];
$lastname = $row['last_name'];
echo'<option>' . $firstname . " " . $lastname . '</option>';
}
echo '</select> <p>';
Again the above code works fine, but the below code is what I am having difficulty with
$sql = "SELECT * FROM registration_tbl WHERE first_name = '".$firstname."'";
$query = mysqli_query($dbc, $sql);
while($row = mysqli_fetch_array($query)){
echo "ID: " . " " . $row[0] . "<br>" .
"Name: " . $row[1] . " " . $row[2] . "<br>" .
"Company: " . $row[3] . "<br> " .
"Email: " .$row[4] . "<br> " .
"Date of registration: " . $row[6] . "<br> " .
"Last login: " .$row[7] . "<br>" .
"Admin/User: " .$row[8] . "<p>";
}

if you don't want to use AJAX to dynamically load the content, you need a form to submit the data, your problem is that after your first loop, $firstname is the last user loaded into the , to make your code work, you need a form.
just put the select in a form and add a button
<form action="mypage.php" method="get">
<select name="name" style="width: 400px">
<?php
$sql = "SELECT first_name,last_name FROM registration_tbl";
$query = mysqli_query($dbc, $sql);
while ($row = mysqli_fetch_assoc($query)){
$firstname = $row['first_name'];
$lastname = $row['last_name'];
echo'<option>' . $firstname . " " . $lastname . '</option>';
}
?>
</select>
<input type="submit" value="Load User Data">
</form>
then in mypage.php you need to check if the form is submitted, and show the user details.
<?php
if(isset($_GET["name"])) {
//this form is posted, show user details
//$firstname = $_GET["name"]; <--- SQL Injection enabled here!!
$firstname = mysqli_real_escape_string($_GET["name"]); // please try to avoid SQL injection!
//your code continues here
$sql = "SELECT * FROM registration_tbl WHERE first_name = '".$firstname."'";
$query = mysqli_query($dbc, $sql);
while($row = mysqli_fetch_array($query)){
echo "ID: " . " " . $row[0] . "<br>" .
"Name: " . $row[1] . " " . $row[2] . "<br>" .
"Company: " . $row[3] . "<br> " .
"Email: " .$row[4] . "<br> " .
"Date of registration: " . $row[6] . "<br> " .
"Last login: " .$row[7] . "<br>" .
"Admin/User: " .$row[8] . "<p>";
}
}
last note, if you don't want the username to appear in the querystring, change form action to post, and get variable using $_POST["name"]
EDIT: if you want the form to autopost using javascript then add this to ur select definition:
<select name="name" style="width: 400px" onchange="this.form.submit()">
but bear in mind that a lot of users block javascript, thus this will not work.

The best way would be to use AJAX to get the data of the other script. However, another (far less elegant and efficient) way of doing it is while you're looping through the names to put into the select. You can also be using the names to get the info for that name and put it into an array (but don't echo it) until you need it.

Use this code from where user will select the name
<script type="text/javascript" src="http://ajax.googleapis.com/
ajax/libs/jquery/1.4.2/jquery.min.js">
<script type="text/javascript">
$(document).ready(function()
{
$(".listdata").change(function()
{
var dataString = 'listdata='+ $(this).val();
$.ajax
({
type: "POST",
url: "alldata",
data: dataString,
cache: false,
success: function(html)
{
$(".alldata").html(html);
}
});
});
});
</script>
<?php
$sql = "SELECT first_name,last_name FROM registration_tbl";
$query = mysqli_query($dbc, $sql);
echo '<select name="name" style="width: 400px" class="listdata">';
while ($row = mysqli_fetch_assoc($query)){
$firstname = $row['first_name'];
$lastname = $row['last_name'];
echo'<option value="'.$firstname.'">' . $firstname . " " . $lastname . '</option>';
}
echo '</select> <p>';
?>
<div class="alldata">
<!--here your all data will come-->
</div>
<br/><br/>
Crate one more and give the name alldata.php
And use the below code on that page
<?php
$sql = "SELECT * FROM registration_tbl WHERE first_name = '".$firstname."'";
$query = mysqli_query($dbc, $sql);
while($row = mysqli_fetch_array($query)){
echo "ID: " . " " . $row[0] . "<br>" .
"Name: " . $row[1] . " " . $row[2] . "<br>" .
"Company: " . $row[3] . "<br> " .
"Email: " .$row[4] . "<br> " .
"Date of registration: " . $row[6] . "<br> " .
"Last login: " .$row[7] . "<br>" .
"Admin/User: " .$row[8] . "<p>";
}
?>

Just to complete your options, here you have a full but basic AJAX implementation (using jQuery):
File select.php (javascript part at the bottom of the file):
<?php
// Notice that you'll need to get the $dbc from somewhere, maybe require 'db.php'?
// Retrieve list of people... (notice I've added id column!)
$sql = "SELECT id, first_name, last_name FROM registration_tbl";
$query = mysqli_query($dbc, $sql);
$people = [];
while ($row = mysqli_fetch_assoc($query)){
$people[$row['id']] = $row['first_name'] . " " . $row['last_name'];
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>List of people</title>
<style type="text/css">
.error {
color: red;
box-shadow: 0px 0px 15px 0px rgba(247, 17, 40, 0.44);
}
#person-info {
padding: 10px;
margin-top: 1em;
}
</style>
</head>
<body>
<h2>People list</h2>
<label for="person">Please select one person</label>
<select name="person" id="people-selection">
<option value="-1"></option>
<?php foreach ($people as $person_id => $person_name): ?>
<option value="<?php echo $person_id ?>"><?php echo $person_name ?></option>
<?php endforeach; ?>
</select>
<div id="person-info"><!-- here we will put person info using AJAX request --></div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
// We bind our AJAX handler to the onChange event of the select element
$("#people-selection").on('change', function(e) {
if ($(this).val() != -1) { // If we did select some value
$.ajax({
type: "POST",
url : "/get_people_info.php",
data: { id: $(this).val() },
})
.done(function(data) {
$("#person-info")
.removeClass("error") // we don't need the error class here, it's a success response
.html(data);
})
.fail(function(jqXHR, textStatus, errorThrown) {
$("#person-info")
.addClass("error") // in order to add some UI for the user
.html("Something went wrong!<br><blockquote>" + errorThrown + "</blockquote>");
});
}
else {
$("#person-info")
.removeClass("error")
.html("");
}
})
});
</script>
</body>
</html>
And then get_people_info.php
<?php
if ($_SERVER['REQUEST_METHOD'] !== "POST") {
header('HTTP/1.0 400 Bad request');
die("Only POST request accedpted!");
}
if (!isset($_POST['id'])) {
header('HTTP/1.0 400 Bad request');
die("id parameter is mandatory!");
}
$id = (int) $_POST['id'];
// Notice that you'll need to get the $dbc from somewhere, maybe require 'db.php'?
$sql = "SELECT * FROM registration_tbl WHERE id = ". $id .";";
$query = mysqli_query($dbc, $sql);
if ($row = mysqli_fetch_array($query)){
echo "<p>ID: " . " " . $row[0] . "<br>" .
"Name: " . $row[1] . " " . $row[2] . "<br>" .
"Company: " . $row[3] . "<br> " .
"Email: " .$row[4] . "<br> " .
"Date of registration: " . $row[6] . "<br> " .
"Last login: " .$row[7] . "<br>" .
"Admin/User: " .$row[8] . "</p>";
}
else {
echo "Person not found!";
}
Let me give you some further reading (you said you were new to PHP, I asume the whole web development):
jQuery Learning center
PHP: The right way

Change src of element loaded with AJAX

I'm trying to alter the src of imgs loaded via. AJAX, wherein the <select> and <option> elements used to control the function are also loaded by AJAX.
I'm trying to do this in order to change the size of Flickr images on the page.
I've tried loading the element, and calling an existing function to update it, but of course the <select> option doesn't exist on document.ready() and thus returns null when I try to get it.
I've also tried loading a new <script type='text/javascript'></script> in the PHP file I'm using for my XML response, but although this shows on the page it obviously isn't picked up as a source.
How can I tell the Document to 're-ready' itself, or acknowledge new sources?
Here's my code as it stands:
Making the request
function makeRequest (url, userID, searchString, selectedLicense) {
event.preventDefault();
var formData = new FormData();
formData.append("userID", userID);
formData.append("searchString", searchString);
formData.append("selectedLicense", selectedLicense);
var xmlRequest = new XMLHttpRequest();
xmlRequest.open("POST", url, true);
xmlRequest.send(formData);
xmlRequest.onreadystatechange=function()
{
if (xmlRequest.readyState===4 && xmlRequest.status===200) {
document.getElementById("working...").innerHTML="<p style='background-color:#BCED91; width:200px; text-align:center;'>Done!</p>";
document.getElementById("results").innerHTML=xmlRequest.responseText;
} else {
document.getElementById("results").innerHTML="<p>Ready State: " + xmlRequest.readyState + "</p> <p>Status Code: " + xmlRequest.status + "</p>";
}
}
}
The PHP
//more code before
$resultString = $resultString . "<script type='text/javascript'>"
. "function sizeChanged(i, select) {
var sel = getSelectedOptionValue(select);
var imgURL = document.getElementById(i.toString());
alert(imgURL);
}"
. "</script>";
//main loop
foreach ($XML->photos->photo as $photo):
$resultString = $resultString . '<div class="photoBox"' . photoBox($photoCounter) . "> <p>" . $photoCounter . ". " . $photo['title'] . "" . "</p>"
. " <p>" . "<img id='" . $photoCounter . "' src=\"http://farm" . $photo['farm'] . $imgURL . "/" . $photo['server'] . "/" . $photo['id'] . "_" . $photo['secret'] . "_" . $size . "\" alt=\"" . $photo['title'] . "\">" . "</p>"
. "<select form='addInformationForm' id='selectSize" . $photoCounter . "' onChange='return sizeChanged(" . $photoCounter . ", selectSize" . $photoCounter . ");'>"
. "<option value='n'>Small (320)</option>"
. "<option value='z' selected='selected'>Medium (640)</option>"
. "<option value='h'>Large (1600)</option>"
. "</select>"
. "</div>";
$photoCounter++;
endforeach;
//more code here
echo $resultString;
The HTML Output (Example)
<div class="photoBox" style="background-color:#FFFFFF">
<p>1. Killip's Adirondack Travelog, page 20</p>
<p><img id="1" src="http://farm9.staticflickr.com//8184/8427833074_2f7e22e7ce_z.jpg" alt="Killip's Adirondack Travelog, page 20"></p>
<select form="addInformationForm" id="selectSize1" onChange="return sizeChanged(1, selectSize1);">
<option value="n">Small (320)</option>
<option value="z" selected="selected">Medium (640)</option>
<option value="h">Large (1600)</option></select>
</div>
Any advice much appreciated!
NOTE: This code is for an internal tool, not a client-facing website.

The <select> doesn't exists at onload, but it does when you create it:
var res = document.getElementById("results");
xmlRequest.onreadystatechange = function() {
if (xmlRequest.readyState===4 && xmlRequest.status===200) {
document.getElementById("working...").innerHTML="<p style='background-color:#BCED91; width:200px; text-align:center;'>Done!</p>";
res.innerHTML = xmlRequest.responseText;
var select = res.getElementsByTagName('select')[0];
/* Use select here */
} else {
res.innerHTML="<p>Ready State: " + xmlRequest.readyState + "</p> <p>Status Code: " + xmlRequest.status + "</p>";
}
};
Note that the <img> element should be available too, but you won't know its dimensions because it won't be downloaded. If you want to wait until it's loaded, you can add a load event listener.