I have a javascript file pet.js. I want to pass a value of variable in test.php. But i can't.
my pet.js is like
$('#pmWorkOrderDetailsPage').live('pageshow', function(event) {
var id = getUrlVars()["id"];
$.get("test.php", { test1: id } );
$.getJSON('pmworkorderdetails.php?id='+id, displaypmWODetails);
});
function displaypmWODetails(data) {
..............code..........
}
My test.php is like
<?php
$ms = $_GET["test1"];
echo $ms;
?>
But it is not working. I tried with Ajax and post method.
It will be best if I can store the variable value on the session in test.php.
Thanks in advance for any help.
1 do not use getUrlVars() it can make site vulnerable to xss
$('#pmWorkOrderDetailsPage').live('click', function(event) {
var id;// get id
$.get("test.php?id="+id,function(data){
var result=$.parseJSON(data);
alert(result["content"])
});
})
test.php
<?php
$id=$_GET['id'];
$data=array();
$data=array("content"=>$id);
echo json_encode($data);
?>
Related
I am unable to print data in the first run but can get it to print in the second run.I want to print data in first run itself.
i have 3 files
1. main files sends ajax post,print data(main.php)
2. put sent data into session(put.php)
3. print data into excel(print.php)
main.php
<?php
session_start();
echo '<p class="first">ABC</p>'; //DOM IS <p class="first">ABC</p>
?>
$(document).ready(function(){
var value = $('.first').text();
myfun();
function myfun(){
$.post("put.php", {"content":value},function(data){
console.log(data);
});
}
window.location.href ='print.php';
});
put.php
<?php
session_start();
$_SESSION["content"] = $_POST["content"];
?>
print.php
// these file print into excel code is simple
<?php
session_start();
header("content-type:application/xls");
$table = '<table><tr><th>Name</th></tr>';
$table .='<tr><td>'.$_SESSION["content"].'</td></tr></table>';
echo $table;
header("content-Disposition: attachment; filename = new.xls");
?>
please help me,thanks in advance.
Why
js won't stop exec when ajax not complete,
so you should redirect after ajax complete to make sure $_SESSION["content"] has set
Fix
change
$(document).ready(function(){
var value = $('.first').text();
myfun(); //i was missing then
function myfun(){
$.post("put.php", {"content":value},function(data){
console.log(data);
});
}
window.location.href ='print.php';
});
to
$(document).ready(function(){
var value = $('.first').text();
myfun(); //i was missing then
function myfun(){
$.post("put.php", {"content":value},function(data){
console.log(data);
window.location.href ='print.php';
});
}
});
I have an image and after clicking this image I take this game id by JQuery code and then a new PHP tap opens this PHP take should display this image id
Here is the JQuery code:
$(".selected").click(function(){
$.post("bookinfo.php", { id: $(this).attr('id') }, function (response) {
alert(response);
});
});
and here is the PHP code
<?php
$id = $_POST['id'];
echo $id;
?>
and here is the error that i get
Notice: Undefined index: id in C:\xampp\htdocs\bookstore\bookinfo.php on line 2
I have tried AJax request and get but the same error happens..
I have been trying for this error for about 2 hours so please help me!
You can do something like this:
Edited:
jQuery
<script>
$(document).ready(function(){
$(document).on('click','.selected',function(){
var id = $(this).attr('id');
window.location.replace("bookinfo.php?id=" + id);
});
});
</script>
PHP
<?php
if(isset($_GET['id']) && !empty($_GET['id'])){
$id = $_GET['id'];
echo $id;
}
?>
in your php you have to return a json to get it from AJAX. just try changing your php code like this.
<?php
header('Content-Type: application/json');
if(isset($_POST['id']))
{
$data = array($_POST['id']);
echo json_encode($data);
}
I have a page that receives incoming values from $_POST. One such value is from a drop down selector that allowed the user to select values 0 -10. I want to trigger a JQuery function if a value greater than 0 was selected.
So, if $_POST['DropDownSelection'] > 0, then my JQuery function should run.
How do I trigger the function?
If the function needs to be called in the original page then you can do this -
$('select[name="DropDownSelection"]').change(function() {
var newValue = $(this).val();
if(newValue > 0) {
// your function here
}
});
You don't need PHP, you just need to see if the value changed and then if the value is greater than 0.
If the function is in the page that gets posted to then you could do this -
<script>
var DropDownSelection = <?php echo $_POST['DropDownSelection']; ?>;
if(DropDownSelection > 0) {
// call your function here
}
</script>
Something i like to do for passing a PHP var to Javascript is to put in in an hidden input like that :
<input id="myValue" type="hidden" value="<?= $_POST['DropDownSelection']; ?>" />
The in your javascript :
if(document.getElementById('myValue').value > 0) //Do something
Depends on how your PHP code is connected to the HTML output. In the simplest case where PHP and HTML are in the same file, you could do something like
<? if ($_POST['DropDownSelection'] > 0) { ?>
<script>$.myFunction(...);</script>
<? } ?>
You can do like that.
var x = <?php echo $_POST['DropDownSelection'] ?>;
if(x>0){
jqueryFunction(); // your function call.
}else{
// whatever else you want.
}
Maybe this is oversimplified and a little hacky, but I don't see why this wouldn't work...
<script type="text/javascript">
function overZero() {
// do stuff...
}
<?php
if ($_POST['DropDownSelection']>0) echo('overZero();');
?>
</script>
$(document).ready(function(){
$("#dropdown-id").change(function(){
//check if the value is > 0 and then
// trigger your jquery function()
})
})
However, I want to also call that function when the user lands on the page with
a particular $_POST value for a field
There are 2 easy ways of doing this:
Make global funciton:
ex:
function print(){
alert('hello')
}
<?php
if($_POST['DropDownSelection'] != 0)
{
echo "<script>print()</script>";
}
?>
Or use triger function from jquery:
<?php
if($_POST['DropDownSelection'] != 0)
{
echo "<script>$('#dropdown').trigger('change');</script>";// execute the onchange event(function) attached to the dropdown
}
?>
How to store PHP session variable in JQuery variable.
I have one php file where i am using session variable as
$local_session = $_SESSION['sessionusername'];
and that PHP falls also using one .js file where i want to store this $local_session which is PHP variable to JQuery variable
It is as
session_start();
ob_start();
if(!$_SESSION['sessionusername'])
{
header("location:index.php");
}
else
{
include ('connection2.php');
include('PHP/combo_val.php');
$local_session = $_SESSION['sessionusername'];
}
and after this my HTML code starts
You might do something like this in your java script:
var sessionVar = '<?php echo $local_session; ?>';
and then use this global JS variable wherever in your page.
You can write some php-script which return session data, for example
JS:
//my.js
$.getJSON( "myssesiondata.php", function( data )
{
console.log(data);
}
PHP:
<?php
//mysession.php
return json_encode($_SESSION);
?>
# Axel Amthor
My JQuery Code is as
var lgn_usr = '<?php echo $_SESSION["sessionusername"] ?>';
alert(lgn_usr);
and it display
<?php echo $_SESSION["sessionusername"] ?>
as message
# Axel Amthor
My Jquery file code is as:
$(document).ready(function() {
$('#submit').click(function() {
submit_fxn();
$('#form_nuser').submit(function(e) {
return false;
});
});
function submit_fxn(){
var check_flag = 0;
var lgn_usr = '<?php echo $local_session; ?>';
alert(lgn_usr);
};
});
OKay, I got it. $_SESSION is a PHP array, we cannot set it on the client side via Javascript. The value has to be sent to the server to be stored in the array. Now, I am going for other method....
I am implementing tags feature in my project.
In my demo tags i found they are passing names in a javascript function for the autocomple.
This is a function in my demo project,
<script>
$(function()
{
var sampleTags = ['c++', 'scala', 'groovy', 'haskell', 'perl', 'erlang', 'apl', 'cobol', 'go', 'lua'];
..................
.................
So , i want pass values from my php controller to this function ,inorder to get the autocomplete value from my database table
For example i am getting tags values from my db in my Controller like this:
` $data["query"] = $this->ordermodel->fetch_orderlist();`
$this->load->view('tagpage', $data); //loading my page tag page where above function exists
Now how can i pass that $data["query"] values into the above javascript function?
Please help
You could echo the variable onto the page using PHP's json_encode. This function will convert a PHP array or object into a JSON object, which JavaScript can work with:
<script>
$(function() {
var sampleTags = <?php echo json_encode($query); ?>;
})();
</script>
But a better way would be to request these values via Ajax. Say you have a PHP script named values.php:
<?php
#...
#assign $query here
#...
echo json_encode($query);
Then, in JavaScript (on the page where you want to use the sampleTags variable), you can use jQuery's .ajax function to make an easy Ajax request:
<script>
var sampleTags;
$.ajax({
url: 'values.php'
}).done(function(data) {
if (data) {
sampleTags = data;
}
});
</script>
I haven't tested this example. Obviously you'll want to tweak it to fit your environment.
You will have to write an ajax function for this
$.ajax(
url : "<?php echo site_url('controller/method')?>",
type : 'POST',
data : 'para=1',
success : function(data)
{
if(data){
var sampleTags = data;
}
}
);
Just echo your php variable
$(function()
{
var sampleTags = '<?php echo $data["query"]; ?>'