HTML/PHP:
<?php foreach($lines as $line): ?>
<form method="GET" action="nextpage">
<?php
global $unitPRICE;
$unitPRICE=(float) $line[1];
global $quantity;
$quantity=(float) $line[2];
?>
<tr>
<td> <div name="NomP"> <?php echo "<p>".$line[0]."</p>"; ?> </div>
<input class="btn" name="delbtn" type="button" onclick="deleteproduct(this.form)" value="Delete">
</td>
<td>
<div id="fixedP">
<input type="text" name="FIXEDP" value="<?php echo $unitPRICE; ?>" readonly>
</div>
</td>
<td> <input type="number" id="quantity" class="qty" oninput="modPrice(this.form)" value="<?php echo $quantity;?>" ></td>
<td >
<div>
<input id="price"type="text" name="price" value="<?php echo $unitPRICE*$quantity; ?>" readonly>
</div>
</td>
</tr>
</form>
<?php endforeach; ?>
Javascript:
function deleteproduct(frm){
var deletebtn= frm.elements['delbtn'];
console.log(typeof deletebtn);
}
The Error:
Uncaught ReferenceError: deleteproduct is not defined
at HTMLInputElement.onclick (cart.php:55)
Also, the main goal of this function is to print the text the div with the id "Nomp".
I need to transpose/rotate a table, in order to view it better, however as soon as I transpose the table the submit button will now work any more
I have a table setup as follows
<table id="tableID" width="200" border="1">
<tbody>
<tr>
<td>Date</td>
<td>Boxed;</td>
<td>Location</td>
<td>Quantity</td>
<td>Change;</td>
</tr>
<?php do { ?>
<tr><form action="<?php echo $editFormAction; ?>" method="POST" enctype="multipart/form-data" name="form1" id="form1">
<td><?php echo $row_get['Date']; ?></td>
<td><?php echo $row_get['Boxed']; ?></td>
<td><input name="Location" type="text" id="Location" value="<?php echo $row_get['Location']; ?>" size="7" /></td>
<td><input name="Quantity" type="text" id="Quantity" value="<?php echo $row_get['Quantity']; ?>" size="7" /></td>
<td><input name="Update" type="submit" value="submit" id="Update" />
<input name="id" type="hidden" id="id" value="<?php echo $row_get['id']; ?>" />
</p>
<input type="hidden" name="MM_update" value="form1" />
</form></td>
</tr> <?php } while ($row_get ->fetch()); ?>
</tbody>
</table>
in the transpose table script:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<script>
$( document ).ready(function() {
$("#tableID").each(function() {
var $this = $(this);
var newTransposedRow = [];
$this.find("tr").each(function(){
var i = 0;
$(this).find("td").each(function(){
i++;
if(newTransposedRow[i] === undefined) { newTransposedRow[i] = $("<tr></tr>"); }
newTransposedRow[i].append($(this));
});
});
$this.find("tr").remove();
$.each(newTransposedRow, function(){
$this.append(this);
});
});
});
</script>
Update DB:
$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}
if ((isset($_POST["MM_update"])) && ($_POST["MM_update"] == "form1")) {
$updateSQL = "UPDATE Stock SET Location=?, Quantity=? WHERE id=?";
$Result1= $conn->prepare($updateSQL) or die(errorInfo());
$done = $Result1->execute([$_POST['Location'], $_POST['Quantity'], $_POST['Trade_price'], $_POST['id']]);
if ($done){
header('Location: mypage.php
exit();
}
}
This all works fine until I use/insert the transposition script any idea what is stopping the update?
Any help welcome
I want to create a function that can automatically save data when the data is completed input. but still not successful. I hope someone can help me solve this problem.
This is my code:
<script type="text/javascript">
$(document).ready(function() {
var vall = $('#dofg_itemcode')
vall.keyup(function(){
$.post("save-mobile.php?dofgid=<?php echo $dofgid; ?>", {vall : vall.val()}, function(data)) {
$(".result").html(data);
}
}
}
</script>
<form id="form1" name="form1">
<table width="99%" border="0" cellspacing="5" cellpadding="5">
<tr>
<td width="60%"><span class="style2"><font size="5">QR CODE :</font><br />
<input name="dofg_itemcode" type="text" id="dofg_itemcode" style="width:75%; font-size:30px;" maxlength="15" required="true" tabindex="0"/>
</span></td>
</tr>
<tr>
<td colspan="2" align="left"><input id="deviceid" name="deviceid" type="hidden" value="<?php echo $user;?>" />
<input id="compid" name="compid" type="hidden" value="<?php echo $compid;?>" />
<input id="tokenid" name="tokenid" type="hidden" value="<?php echo $tokenid;?>" />
<input name="alert" type="hidden" id="alert" value="<?php echo $tokenid;?>"/>
<div id="inlineKeypad"></div>
</td>
</tr>
</table>
$(document).ready(function() {
$('#dofg_itemcode').keyup(function(){
$.post("save-mobile.php?dofgid=<?php echo $dofgid; ?>", {
vall : $(this).val();
}, function(data) {
$(".result").html(data);
});
});
});
i am very new to php and have no idea of javascript, have done all js work using tutorials.Also tried to use existing solutions from stackoverflow, but no success !
What i am trying to do is trying to update database values using 'submit' button on the basis of values called from 'select option'.
Problem is that no data is getting updated in DB after i click on submit button (on viewtest.php), I have also tried to add the 'update.php' to form action.
Here's the screenshot of viewtest.php
here's my code:
viewtest.php
<form method="POST" action="">
<table border="1px"><tr> <td>
<select required name="tstname" id="test" onChange="fetch_ques()">
<option> Select Test Name</option>
<?php
$res=mysqli_query($connection,"select * from test_detail");
while($row=mysqli_fetch_array($res))
{
?>
<option value="<?php echo $row["test_name"]; ?>">
<?php echo
$row["test_name"]; echo' - - ['. $row['test_category'].']'; ?> </option>
<?php
}
?>
</select>
</div>
<td>
<div id="qnos"><select></select></div></td></tr>
<tr><td colspan="2" align="center">
<input type="submit" name="btnSubmit" id="vform" value="Update Question"> </td></tr>
</form>
</table>
<div id="ques"></div>
<script type="text/javascript">
function fetch_ques()
{
var xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","getq.php?
tstnm="+document.getElementById("test").value,false); // function id
xmlhttp.send(null);
document.getElementById("qnos").innerHTML=xmlhttp.responseText; // div id
}
function display_ques()
{
var xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","displayq.php?
qnos="+document.getElementById("quesdd").value,false);
xmlhttp.send(null);
document.getElementById("ques").innerHTML=xmlhttp.responseText;
}
</script>
<script type="text/javascript">
$(document).ready(function()
{
$("#vform").submit(); (function()
// document.getElementById("vform").submit();(function()
{
location.href='update.php?
qno='+$("#quesno").val()+'&qn='+$("#ques").val()+'&c1='+$("#a1").val()+'&c2='+$
("#a2").val()+'&c3'+$("#a3").val()+'&c4='+$("#a4").val()+'&cr='+$("#cr").val();
});
});
</script>
<?php
if(isset($_GET['st']) && $_GET['st'] !== "")
{
echo"updated";
}
else echo "Error: ".mysqli_errno();
?>
displayq.php //Used to fetch data in select menu
<?php
include '../connect.php';
$quesno=$_GET["qnos"];
if($quesno!="")
{
$qry=mysqli_query($connection,"select * from quesadd where quesid='$quesno'");
echo "<table name='ques'>";
while($ftc=mysqli_fetch_array($qry))
{
?>
<form method="POST" action="">
<table name="ques">
<tr><td align="center" colspan="2"> <!-- // Comment <input type="submit" name="submit" id="upq" value="Update Question">--></td> </tr>
<tr> <td align="center"> <b> Question : <input type="text" id="quesno" value="<?php echo $ftc["quesid"];?>" disabled></b></td>
<td> <textarea name="ques" id="ques" cols="100" rows="3" placeholder="Please Input The Question Here !"> <?php echo $ftc['ques'];?></textarea> </td> </tr>
<tr> <td width="25%" align="center" colspan="2"> <br> <b>Choices</b> </td> </tr>
<tr> <td align="center" colspan="2"><b>1.</b> <input type="text" id="a1" name="a1" value="<?php echo $ftc['c1'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b>2.</b> <input type="text" id="a2" size="20px" name="a2" value="<?php echo $ftc['c2'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b>3.</b> <input type="text" id="a3" size="20px" name="a3" value="<?php echo $ftc['c3'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b>4.</b> <input type="text" id="a4" size="20px" name="a4" value="<?php echo $ftc['c4'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b><font color="maroon">Correct Answer</font></b> <input type="text" size="20px" id="cr" name="correct" value="<?php echo $ftc['answer'];?>"> </td> </tr>
</table>
</form>
<?php
}
echo "</table>";
}
?>
</tr> </td>
</table>
</form>
update.php //Used to update question by getting values from 'viewtest.php'
<?php
include '../connect.php';
$qn=$_GET['qno'];
$qname=$GET['qn'];
$a1=$GET['c1'];
$a2=$GET['c2'];
$a3=$GET['c3'];
$a4=$GET['c4'];
$acr=$GET['cr'];
$update=mysqli_query($connection,"update quesadd SET ques='$qname',
c1='$a1',c2='$a2',c3='$a3',c4='$a4',answer='$acr' where quesid='$qn' ");
if($update==true)
{
header('location:viewtest.php?st=true');
}
?>
I can see multiple problems, don't know if all the problems will go away but it will help.
$("#vform").submit(); (function()
The line above says if a <form> with the id="vform" has been submitted, execute this function. Your form does not have an id so it will never trigger. One other problem is that the function is not part of the trigger. It should be something like
$("#vform").submit(function()
The complete code could look like:
<script type="text/javascript">
$(document).ready(function(){
$("#vform").submit(function(e){
e.preventDefault();
location.href='update.php?qno='+$("#quesno").val()+'&qn='+$("#ques").val()+'&c1='+$("#a1").val()+'&c2='+$("#a2").val()+'&c3'+$("#a3").val()+'&c4='+$("#a4").val()+'&cr='+$("#cr").val();
return false;
});
});
</script>
Use AJAX to submit your form and refresh/redirect the page with javascript.
viewtest.php
<?php
include '../connect.php';
?>
<form method="POST" action="">
<table border="1px">
<tr>
<td>
<select required name="tstname" onchange="display_ques()" id="test">
<option> Select Test Name</option>
<?php
$res = mysqli_query($connection, "select * from test_detail");
while ($row = mysqli_fetch_array($res)) {
?>
<option value="<?php echo $row["test_id"]; ?>">
<?php echo
$row["test_name"];
echo ' - - [' . $row['test_category'] . ']'; ?> </option>
<?php
}
?>
</select>
</td>
<td>
<div id="qnos">
<select>
<!-- put code here for showing question id/number -->
</select></div>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="btnSubmit" id="vform" value="Update Question"></td>
</tr>
</table>
</form>
<div id="ques"></div>
<h1 id="status"></h1>
<!-- jQuery -->
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<script>
function display_ques() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("ques").innerHTML = xmlhttp.responseText;
}
};
xmlhttp.open("GET", "displayq.php?qnos=" + document.getElementById("test").value, true);
xmlhttp.send(null);
}
function fetch_ques() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET", "getq.php?tstnm = " + document.getElementById("test").value, false); // function id
xmlhttp.send(null);
document.getElementById("qnos").innerHTML = xmlhttp.responseText; // div id
}
$(document).ready(function () {
$('#vform').on('click', function (e) {
e.preventDefault();
var data = $('form#update').serialize();
$.post('update.php', data, function (response) {
// response is the data returned from php echo json_encode(['results' => true/false]), from update.php
var res = JSON.parse(response);
if (res.results == true) {
$('#status').html('Data was updated');
} else {
$('#status').html('Error occured while trying to update data.');
console.log(response);
}
});
});
});
</script>
I have given your form and id to be able to serialize it using jQuery and I have also added a hidden input to hold the id of the current question.
displayq.php
<?php
include '../connect.php';
$quesno = $_GET["qnos"];
if($quesno != "") : ?>
<form id="update" method="POST" action=""> <!-- added an id to the form -->
<table name="ques">
<?php
$qry = mysqli_query($connection,"select * from quesadd where quesid='$quesno'");
while($ftc = mysqli_fetch_array($qry)) : ?>
<tr><td align="center" colspan="2"> <!-- // Comment <input type="submit" name="submit" id="upq" value="Update Question">--></td> </tr>
<tr> <td align="center"> <b> Question : <input type="text" id="quesno" value="<?php echo $ftc["quesid"];?>" disabled></b></td>
<td> <textarea name="ques" id="ques" cols="100" rows="3" placeholder="Please Input The Question Here !"> <?php echo $ftc['ques'];?></textarea> </td> </tr>
<!-- added this hidden input to hold the question number -->
<input type="text" id="quesno" name="quesno" value="<?php echo $ftc["quesid"];?>" hidden>
<tr> <td width="25%" align="center" colspan="2"> <br> <b>Choices</b> </td> </tr>
<tr> <td align="center" colspan="2"><b>1.</b> <input type="text" id="a1" name="a1" value="<?php echo $ftc['c1'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b>2.</b> <input type="text" id="a2" size="20px" name="a2" value="<?php echo $ftc['c2'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b>3.</b> <input type="text" id="a3" size="20px" name="a3" value="<?php echo $ftc['c3'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b>4.</b> <input type="text" id="a4" size="20px" name="a4" value="<?php echo $ftc['c4'];?>"> </td> </tr>
<tr> <td align="center" colspan="2"><b><font color="maroon">Correct Answer</font></b> <input type="text" size="20px" id="cr" name="correct" value="<?php echo $ftc['answer'];?>"> </td> </tr>
<?php endwhile; ?>
</table>
</form>
<?php endif; ?>
Then in your update.php you can access the values using $_POST
<?php
include '../connect.php';
$qn = trim($_POST['quesno']);
$qname = trim($_POST['ques']);
$a1 = trim($_POST['a1']);
$a2 = trim($_POST['a2']);
$a3 = trim($_POST['a3']);
$a4 = trim($_POST['a4']);
$acr = trim($_POST['correct']);
$sql = "update quesadd SET ques='$qname', c1='$a1',c2='$a2',c3='$a3',c4='$a4',answer='$acr' where quesid='$qn'";
if (mysqli_query($connection, $sql)) {
// returning data to jQuery, as response
// jQuery will parse this as json {results: true}
echo json_encode(['results' => true]);
} else {
// returning data to jQuery, as response
// jQuery will parse this as json {results: false}
echo json_encode(['results' => false]);
}
<html>
<head>
<script type="text/javascript">
function removeLink(i)
{
document.getElementById("tab2").deleteRow(i);
}
</script>
</head>
<body>
<form action="forth.php" method="post">
<table width="600" border="1" id="tab2">
<?php
foreach($_POST as $key => $post2)
{
?>
<tr>
<td>
<?php
echo $post2.'<br />';
?>
<input type="hidden" name="<?php echo $key;?>" value="<?php echo $post2;?>" />
</td>
<td>Remove</td>
</tr>
<?php
}
?>
<tr>
<td><input type="submit" value="Next" /></td>
<td> </td>
</tr>
</table>
</form>
</body>
guys you can see my anchor tag having onclick function of removeLink() but it does not delete the entire tr as expected. when im clicking the anchor generated link it does not perform any action. is there any issue like anchor not supporting inner objects define in removeLink(this.parentNode.parentNode.rowIndex) ? guys help how it can be done
Use Jquery. Include <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
And try this
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('.deleteMe').click(function(){
$(this).parent().parent().remove();
//or u can hide that like $(this).parent().parent().hide.();
})
});
</script>
</head>
<body>
<form action="forth.php" method="post">
<table width="600" border="1" id="tab2">
<?php
foreach($_POST as $key => $post2)
{
?>
<tr>
<td>
<?php
echo $post2.'<br />';
?>
<input type="hidden" name="<?php echo $key;?>" value="<?php echo $post2;?>" />
</td>
<td>Remove</td>
</tr>
<?php
}
?>
<tr>
<td><input type="submit" value="Next" /></td>
<td> </td>
</tr>
</table>
</form>
</body>
first of change below code in your anchor onclick line.
onClick="removeLink(this);">
then try this.
<script type="text/javascript">
function removeLink(obj){
var par=obj.parentNode;
while(par.nodeName.toLowerCase()!='tr'){
par=par.parentNode;
}
i = par.rowIndex;
document.getElementById("tab2").deleteRow(i);
}
</script>