I have records which column name is counter. And the value is like 000003, 000012, and so on. But my problem is, when I try to post it the value that receive in the form action url change, I receive only 3 which is the real value is 000003. Why is that? I echo POST value in my second page.
<?php
$mysqli = new mysqli("localhost", "root", "", "app");
$result1 = $mysqli->query("
SELECT *
FROM app
");
echo'<table border=1>
<thead>
<tr>
<th>cc</th>
</tr>
</thead>';
echo'<tbody>';
while($row = $result1->fetch_assoc()){
echo' <tr>';
echo "<td><a href='#' onclick='javascript:postIt(".$row['counter'].");'>".$row['counter']."</a></td> ";
echo'</tr>';
}
echo "</tbody></table>";
?>
<script>
function postIt(value){
document.forms[0].id.value = value;
document.forms[0].submit();
}
</script>
<form name="blah" action="check.php" method="post">
<input type="hidden" name="id">
</form>
Why 000003 become only 3, or 000172 become 172. Help?
this may work
echo "<td><a href='#' onclick='javascript:postIt(\"".$row['counter']."\");'>".$row['counter']."</a></td> ";
Because you are working with integers, not string. If you want to keep them as strings, meaning, with the leading zeros, convert the values to string type.
Why is this a problem? At the receiving end you can simply pad the number back out how you want it to.
It seems like a counter should be an integer. You can then pad it out or not if and when you want to.
If you really want to you can pad it out before you send it.
See here:
How can I pad a value with leading zeros?
Related
everyone. I'm still new using JavaScript, I need your help to fix my problem, I try to disable checkbox after submitted. Because my checkbox value is from DB and the data will show as long as the DB have it so I'm using class="select_DB[]" in my input tag. From my knowledge class is using array index so I want to disable the checkbox that I choose I have to get the array index of the class. So how I can get the array index of the checkbox ? Need you help
//this code for disable checkbox after submit need improve I don't know how to get array index of the class
function closeCB() {
document.getElementByClassName("select_DB").disabled = true;
}
<tbody>
<?php
include "db_connect.php";
$sql_select = $dt_bas->prepare("SELECT id_pegawai, nm_pegawai, tmp_lahir FROM pegawai");
$sql_select->execute();
while($row = $sql_select->fetch(PDO::FETCH_ASSOC)){
$id = $row["id_pegawai"]; // id
$nm = $row["nm_pegawai"]; // employe name
$tmp = $row["tmp_lahir"]; // birthday
?>
<tr>
<td><input type="checkbox" class="select_DB[]" class="select_DB[]" value=<?php echo"$id";?> <?=was_checked($id)?>/></td> <!-- This is the checkbox-->
<td><?php echo "$id";?></td>
<td><?php echo "$nm";?></td>
<td><?php echo "$tmp";?></td>
<td>
Ubah
Detail
</td>
</tr>
<?php } ?>
<?php
if(isset($_POST['chkStatus'])){
for ($i=0;$i<count($_POST['chkStatus']);$i++) {
$count = count($_POST['chkStatus']);
list($txtClientId, $txStatusValue) = explode('-', $_POST['chkStatus'][$i], 2);
$stmtChkStatus=$con->query("SELECT id,status FROM users WHERE id=$txtClientId");
$SRow = $stmtChkStatus->fetch();
if($SRow['status']!=$txStatusValue) {
if($txStatusValue==0) $stmtStatus=$con->query("UPDATE users SET status='0' WHERE id=$txtClientId");
else $stmtStatus=$con->query("UPDATE users SET status='1' WHERE id=$txtClientId");
}
}
}
?>
<html>
<body>
<dl>
<?php $stmtUsers=$con->query("SELECT id,status FROM users");
while($UsersRow = $stmtUsers->fetch()){
echo "<dt>$UsersRow[name]</dt>
<dd><input type='checkbox' name='chkStatus[]' value='$UsersRow[id]-$UsersRow[status]'";
if($CRow['status']==0) echo " checked";
echo " onchange='this.form.submit()'>
</dd>";
?>
</dl>
</body>
</html>
The issue with my code is that it only execute the checked checkboxes. I need a code that changes the status in SQL DB of the checkbox that i click(onchange).
Instead of looping through $_POST['chkStatus'] you could fetch all possible values with $con->query("SELECT id,status FROM users") and loop over those values. You can check then, if $_POST['chkStatus'] is set for the according value(s).
At a moment you send all checkbox values to the server. You may send only interested values. Quick and dirty solution:
split you checkboxes into individual forms and submit only form you need:
while($UsersRow = $stmtUsers->fetch()){
echo "<dt>$UsersRow[name]</dt>
<form .... > <!-- Here required attributes -->
<dd><input type='checkbox' name='chkStatus[]' value='$UsersRow[id]-$UsersRow[status]'";
if($CRow['status']==0) echo " checked";
echo " onchange='this.form.submit()'>
</form>
</dd>";
In inclick attribute take id or name of checkbox and add to request.
Guys i have foreach loop where i list some prices. All price have own input radio button.
By default only one price from looping is checked. I want to get that value when page is lodaed.
I have one session where i store number of days. Based on these days I get the price of cars.
$numDays = $_SESSION['days']; // 5
$calculate_km = $numDays * 140; // 5*140km
So in page where i want to show total KM i use:
if(isset($_SESSION['days']) {
$numDays = $_SESSION['days'];
}else {
// Show default selected radio button value
}
Problem is bcs price list with radio is on the some page and there is no sumbiting
My loop:
<?php if($prices = getCarPricePeriod($car->ID, $od, $do)):?>
<?php $first = true; ?>
<?php foreach ($prices as $price): ?>
<tr>
<td><input type="radio" name="price" value="<?= $price['value'];?>" <?= $first ? 'checked' : '' ?>> </td>
<td><input type="text" name="price_name" value=" <?= $price['name'];?>">€/per day</td>
</tr>
<?php endforeach; ?>
<?php $first = false; ?>
<?php endif; ?>
Total KM : <span> <?= $numDays * 140 ;?> </span>
Only is posible to get that value if i submit that form. So i need js for this or any way to do this in php
I want to get that value when page is lodaed.
Use .ready() , selector $("tr input:checked") , .val()
$(document).ready(function() {
var val = $("tr input:checked").val()
})
If what you are asking is "how to send data from client-side to server-side", then the answer is AJAX.
Take a look at W3School's AJAX tutorial here: http://www.w3schools.com/ajax/
EDIT 1
for javascript, this should do it:
document.querySelector("input[type=radio]:checked").getAttribute("value")
Without submit, you need JavaScript to do that, like this:
<script>
var p = document.getElementByName("price");
</script>
I have unknown amount of checkbox inputs on a page created based on rows in an sql database.
The checkboxes look like:
<input type="checkbox" class="deletefunc" value="<? echo $mid; ?>">
The checkboxes are intended, when checked and submitted, to delete a row from the database based on the value of $mid
The checkboxes could be either loose (not contained in any forms), or each could be contained in its own form (without a submit button). There is no way however to contain all the checkboxes in one form.
The reason is it's displayed in a loop with output like this:
<tr>
<td><input type="checkbox" class="deletefunc" value="<? echo $mid; ?>"></td>
<td><input type="checkbox" class="star" value="1"> <!-- jquery/ajax onclick function --></td>
<td><a href></td>
<td><form name....><input type="submit" value="something"></form></td>
<tr>
So what I need help understanding is, how to gather all the checkboxes based on classname, and attach them to a submit button....
And further, how would I write the loop function so it knows how many deletes to perform? What I mean is, how would I write a loop that would get the values from an unknown amount of inputs. Normally I know how many inputs there are and what the names are so its a matter of assigning a variable for each input.... I've never done this with an unknown amount of inputs.
I would do it like this:
HTML:
<input type="checkbox" class="deletefunc" value="<? echo $mid; ?>">
<button id="delete-them">Delete Them</button>
JS:
$(function() {
$('#delete-them').on('click', function() {
var data = $('.deletefunc').attr('name', 'delete[]').serialize();
$.ajax('delete-them.php', {
method: 'POST',
data: data,
success: function() {
alert('deleted!');
}
});
});
});
PHP:
<?php
$ids = $_POST['delete'];
$params = array_fill(0, count($ids), "?");
$sql = "DELETE FROM some_table WHERE id IN (" . implode(",", $params) . ")";
//DELETE FROM some_table WHERE id IN(?,?,?,?);
$pdo = new PDO('mysql:host=localhost;dbname=mydb', 'user', 'pass');
$stmt = $pdo->prepare($sql);
$stmt->execute($ids);
?>
So we basically listen for a click on our button, when it happens, we set the name (with [] at the end so it becomes an array) for all of the items with the class we care about, so that when we serialize those items we know how to reference it in our PHP.
We then POST that data over to the server, where we read the array we just sent, see how many there are, and then create a query to delete those items.
I have a dynamic field that get value from database, and I want to check one of the field value if it was greater from the old value or not. If it does greater, i have to give an alert and reset field value back to ''
i want to do it without using document.GetElementById because the field was looped by foreach, I'm tryin to work with document.GetElementByName but got no where. here's my code
<?php foreach ($items->result_array() as $row){ ?>
<tr>
<td><p><?php echo $row['nmbr']; ?> </p>
<p><?php echo $row['urai']; ?><p> </td>
<td><?php echo $row['jml']?> </td>
<td><div class="oldprice"><?php echo $row['oldprice']?></div></td>
<td><input id="pnwrn" class="pnwrn" type="text" name="pnwrn[]" value="" data-harga="<?php echo $row['jml']?>" data-jumlah="<?php echo $row['oldprice']?>"/></td>
<td><div class="output"></div></td>
</tr>
<?php } ?>
and this is my javascript :
<script type="text/javascript">
$('.pnwrn').on('change', function () {
var twrn = $(this).val();
var price = parseInt($(this).data('harga'));
var jmlh = parseInt($(this).data('jumlah'));
if (twrn <= jmlh){
$(this).parents('tr').find('.output').html(twrn*price);
}
else {
alert("Price can not be greater from old price");
cleartext();
}
});
function clearInputs() {
document.getElementByName("pnwrn").value = "";
}
</script>
can someone help me?
You are not supposed to have multiple elements with the same id. Instead, try this:
<td><input id="pnwrn<?php echo $row['some_id_field_that_you_have']; ?>" class="pnwrn" type="text" name="pnwrn[<?php echo $row['some_id_field_that_you_have']; ?>]" value="" data-harga="<?php echo $row['jml']?>" data-jumlah="<?php echo $row['oldprice']?>"/></td>
You can also attach the matching ID on the <tr>, or to other elements, which makes it trivial to find the appropriate elements.
Unfortunately, with names like urai, harga, jumlah and pnwrn, it is extremely hard to pinpoint what exactly you're trying to do, thus just vague hints.
But - if you're trying to clear the very field you're checking, you already have it, so no lookup needs to be done. Just do clearInput(this).
Try this to loop through all the inputs and match on the class you want:
$("input").each(function (i) {
if ($(this).prop("class") === "pnwrn") {
$(this).val('');
}
});