I am getting userid from the url.
This is what I have at the moment. I want to replace the one with $userid but I don't know how. It doesn't work and I can't seem to find the right syntax, please can someone help?
function returnimages($dirname = "Photos/1")
Basically I am trying to create a photo slideshow using html, php and javascript. I had something working before I started adding php into my code. I had html and an external javascript that changes the photos and they fade in and out in a loop. I have a photo array in javascript. Right now I am trying to add php to my html. I want to be able to get userid via url and then from that get the photos from a specific path to the userid in the directory. Then I am hoping to create an array of these photos and use them in my javascript. Here is my php code embedded in my html:
<?php
$user_id = $_GET['userid'];
print " Hi, $user_id ";
function returnimages($dirname = "Photos/1") { //will replace 1 with userid once something starts working
$pattern="(\.jpg$)|(\.png$)|(\.jpeg$)|(\.gif$)"; //valid image extensions
$files = array();
$curimage=0;
if($handle = opendir($dirname)) {
while(false !== ($file = readdir($handle))){
if(eregi($pattern, $file)){ //if this file is a valid image
//Output it as a JavaScript array element
echo 'galleryarray['.$curimage.']="'.$file .'";';
$curimage++;
}
}
closedir($handle);
}
return($files);
}
echo 'var galleryarray=new Array();'; //Define array in JavaScript
returnimages() //Output the array elements containing the image file names
?>
And my javascript:
$ (document).ready(function(){
var photodisplay =
[
$("#photo1"),
$("#photo2"),
$("#photo3"),
$("#photo4"),
$("#photo5"),
];
//photodisplay[0].hide().fadeIn(3000);
var user = new Array();
[1, 2, 3, 4, 5];
// List of images for user one
/*var userphoto = new Array();
userphoto[0] = "Photos/1/1.jpg";
userphoto[1] = "Photos/1/2.jpg";
userphoto[2] = "Photos/1/1.jpg";
userphoto[3] = "Photos/1/1.jpg";
userphoto[4] = "Photos/1/1.jpg";*/
//preloading photos
var userphoto = <? echo json_encode($galleryarray); ?>;
function preloadingPhotos() {
for (var x=0; x<5; x++)
{
photodisplay[x].attr("src", "Photos/1" + userphoto[x]);
photodisplay[x].hide();
console.log("preloaded photos");
}
displayPhoto();
}
function displayPhoto(){
photodisplay[0].fadeIn(3000);
photodisplay[0].delay(3000).fadeOut(3000, function() { //first callback func
photodisplay[1].fadeIn(3000);
photodisplay[1].delay(3000).fadeOut(3000, function() { //second callback func
photodisplay[2].fadeIn(3000);
photodisplay[2].delay(3000).fadeOut(3000, function() { //third callback func
photodisplay[3].fadeIn(3000);
photodisplay[3].delay(3000).fadeOut(3000, function() { // fourth callback func
photodisplay[4].fadeIn(3000);
photodisplay[4].delay(3000).fadeOut(3000, function() {
setTimeout(displayPhoto(), 3000);
});
});
});
});
});
}// end of function displayPhoto
window.onload = preloadingPhotos;
}); //end ready
My url to get userid:
http://example.com/code.php?user_id=1
Thank you for your time!
The problem is that you are always setting the dirname instead of letting calling the function set it. You could change:
function returnimages($dirname = "Photos/1") {
to
function returnimages($dirname) {
because otherwise the $dirname is always Photo/1. Then, when you call the function, use:
returnimages('Photos/'.$user_id);
You can concatenate in PHP by using the dot '.'. This will concatenate two string and then assign them to the variable $dirname. For example:
$dirname = "Photos/" . $_GET['ID'];
The variable $dirname can then be placed in the function returnimages, like:
returnimages($dirname);
Related
NOTE: There are a lot of details here, so if anyone needs a condensed version of this, I'm happy to summarize.
I am trying to run a function in my php file, that will in turn, update a template variable. As an example, here is one such function:
function get_vehicle_makes()
{
$sql = 'SELECT DISTINCT make FROM phpbb_vehicles
WHERE year = ' . $select_vehicle_year;
$result = $db->sql_query($sql);
while($row = $db->sql_fetchrow($result))
{
$template->assign_block_vars('vehicle_makes', array(
'MAKE' => $row['make'],
));
}
$db->sql_freeresult($result);
}
I know that this function works. I am trying to access this function in my Javascript with:
function updateMakes(pageLoaded) {
var yearSelect = document.getElementById("vehicle_year");
var makeSelect = document.getElementById("vehicle_make");
var modelSelect = document.getElementById("vehicle_model");
$('#vehicle_make').html('');
$.ajax({ url: '/posting.php',
data: {action: 'get_vehicle_makes'},
type: 'post',
success:function(result)//we got the response
{
alert(result);
},
error:function(exception){alert('Exception:'+exception);}
});
<!-- BEGIN vehicle_makes -->
var option = document.createElement("option");
option.text = ('{vehicle_makes.MAKE}');
makeSelect.add(option);
<!-- END vehicle_makes -->
if(pageLoaded){
makeSelect.value='{VEHICLE_MAKE}{DRAFT_VEHICLE_MAKE}';
updateModels(true);
}else{
makeSelect.selectedIndex = -1;
updateModels(false);
}
}
The section in my javascript...
<!-- BEGIN vehicle_makes -->
var option = document.createElement("option");
option.text = ('{vehicle_makes.MAKE}');
makeSelect.add(option);
<!-- END vehicle_makes -->
... is a block loop and will loop through the block variable, vehicle_makes, set in the PHP function. This works upon loading the page because the page that loads, is the new.php that I'm trying to do an Ajax call to, and all of the PHP runs in that file upon loading. However, I need the function to run again, to update that block variable, since it will change based on a selection change in the HTML. I don't know if this type of block loop is common. I'm learning about them since they are used with a forum I've installed on my site, phpBB. (I've looked in their support forums for help on this.). I think another possible solution would be to return an array, but I would like to stick to the block variable if possible for the sake of consistency.
This is the bit of code in the php that reads the $_POST, and call the php function:
if(isset($_POST['action']) && !empty($_POST['action'])) {
$action = $_POST['action'];
//Get vehicle vars - $select_vehicle_model is used right now, but what the heck.
$select_vehicle_year = utf8_normalize_nfc(request_var('vehicle_year', '', true));
$select_vehicle_make = utf8_normalize_nfc(request_var('vehicle_make', '', true));
$select_vehicle_model = utf8_normalize_nfc(request_var('vehicle_model', '', true));
switch($action) {
case 'get_vehicle_makes' :
get_vehicle_makes();
break;
case 'get_vehicle_models' :
get_vehicle_models();
break;
// ...etc...
}
}
And this is the javascript to run the Ajax:
function updateMakes(pageLoaded) {
var yearSelect = document.getElementById("vehicle_year");
var makeSelect = document.getElementById("vehicle_make");
var modelSelect = document.getElementById("vehicle_model");
$('#vehicle_make').html('');
$.ajax({ url: '/posting.php',
data: {action: 'get_vehicle_makes'},
type: 'post',
success:function(result)//we got the response
{
alert(result);
},
error:function(exception){alert('Exception:'+exception);}
});
<!-- BEGIN vehicle_makes -->
var option = document.createElement("option");
option.text = ('{vehicle_makes.MAKE}');
makeSelect.add(option);
<!-- END vehicle_makes -->
if(pageLoaded){
makeSelect.value='{VEHICLE_MAKE}{DRAFT_VEHICLE_MAKE}';
updateModels(true);
}else{
makeSelect.selectedIndex = -1;
updateModels(false);
}
}
The javascript will run, and the ajax will be successful. I've checked the network tab and console tab, and have done multiple tests to confirm that. It appears that the block variable is not being set. Is what I'm trying to do even possible? I have a feeling that to get this answer, we'll need to know more about phpBB's template engine, and how it works with these template variable. Also, just to clarify, I think the term 'template variable' is specific to phpBB. It's the term they use for variables set in PHP, to be accessed by the HTML, and javascript files. This works through a phpBB class called 'template', and a function called 'assign_block_vars'. I don't know exactly how that work.
If anyone has done this for phpBB, or has any ideas, I would appreciate it.
Think I found the problem. At the beginning of my PHP, I have an include statement to include the PHP file containing the class for connecting to the database. In the statement $result = $db->sql_query($sql);, $db is set in this other PHP file. I don't entirely understand, but because of that, $db was outside of the scope of my function get_vehicle_makes(). I had to create a class inside my PHP file, and pass $db as a parameter to the function using:
class vehicle {
public function __construct($db)
{
$this->db = $db;
}
function get_vehicle_makes()
{
$sql = 'SELECT make FROM phpbb_vehicles
WHERE year = ' . $select_vehicle_year;
$result = $this->db->sql_query($sql);
Hope this helps.
I'm trying to pass a javascript variable to php on the same page. I tried some code but nothing worked.
The current code looks like this:
function init(e){
$('#DeleteDaily').click(function() {
d = document.getElementById("DailyRequestsList");
selected = d.selectedIndex;
var xhttp = new XMLHttpRequest();
xhttp.open("GET", "index.php?i=" + selected, true);
xhttp.send();
});
}
$(document).ready(init);
$(document).ready(function() {
$('#myForm').ajaxForm(function() {
<?php
if(isset($_POST['DeleteDaily'])) {
$Index = $_GET['i'];
}
?>
});
});
If I try to use Index as an argument for a python script it should delete an entry in a textfile and an element from a select object should be deleted on the website which doesn't happen. The python script itself works fine.
But I don't know why the variable isn't passed to php.
You can't just "mix" javascript and PHP like you're doing.
If that is inside a web page, the PHP code will be rendered (in your case, it will return nothing), and the page will just interpret an empty javascript function.
You need that PHP to be on the server, or turn it into javascript...
you can done it by
PHP Code
<?php
if(isset($_POST['DeleteDaily'])) {
$Index = $_GET['i'];
}else{
$Index='';
}
?>
Javascript code
$(document).ready(function() {
$('#myForm').ajaxForm(function() {
var index = '<?php echo $Index;?>';
if(index == ''){
//put your code
}else{
//put your code
}
});
});
I have a string array in javascript. But when I use href='mypage.php?id=var', I lost this array. I need keep it out for use it in the $_GET. This is the code:
<script>
var element_selected=[];
var i = 0;
function hrefPage()
{
var pagina = "index.php?id=renew";
location.href = pagina;
}
function loadArray(value)
{
element_selected[i] = value;
i++;
}
</script>
<?php
if(isset($_GET['id']))
{
if ($_GET['id'] == "renew")
{
$selected_elements = array();
$j = 0;
for($j = 0; $j < "<script> document.write(i) </script>"; $j++)
{
$selected_elements[j] = "<script> document.write(elements_selected[j]) </script>";
echo $selected_elements[j];
}
}
}
?>
You need to use local storage to use retain javascript variables value across page reloads
var varName = "sachin";
localStorage.setItem("varName", VarName);
alert(localStorage.getItem("varName"));
Another example how to store array in localstorage
var arrayName= [];
arrayName[0] = prompt("Enter your value");
localStorage.setItem("arrayName", JSON.stringify(arrayName));
//...
var storedValues = JSON.parse(localStorage.getItem("arrayName"));
I have added a simple example here how to set javascript value in localstorage and how to access it
I have provided it as an information for you to retain value across page reloads
but first thing about http is that it is a stateless protocol .Each request fetches data from server and renders it in browser the value here is set in local storage of browser .So if you want to reload some value to script after page reload you need to set some flags and on page load check that flag if flag condition for the required situation arises get data from localstorage else proceed as normal
Check out this tutorial for more information
I am getting list of images from a folder for particular ID. Right now I am getting file names but I also want to get upload path.
How to get both data in one function.
Jquery Code:
listFilesOnServer(project_id);
function listFilesOnServer (project_id) {
var items = [];
uploadURI = uploadURI+'/'+project_id;
console.log(project_id+'--KAL--'+uploadURI);
$.getJSON(uploadURI ,function(data,path) {
console.log(data);
$('div #list-group').html("").html(items.join(""));
});
}
Controller Code:
function listFiles() {
$this->load->helper('file');
$project_id = $this->uri->segment(3);
$builders_id = $this->admin_model->getBuilderID($project_id);
$UPLD_PATH = $this->admin_model->builder_UPLD_PATH($builders_id);
$upload_path = "./application/assets/images/" . $UPLD_PATH;
$files = get_filenames($upload_path);
echo json_encode($files);
}
You should modify your controller action so that it returns an json_encode(array('files'=>$yourFiles, 'filePath'=>$yourFilePath) ); like below :
function listFiles() {
$this->load->helper('file');
$project_id = $this->uri->segment(3);
$builders_id = $this->admin_model->getBuilderID($project_id);
$UPLD_PATH = $this->admin_model->builder_UPLD_PATH($builders_id);
$upload_path = "./application/assets/images/" . $UPLD_PATH;
$files = get_filenames($upload_path);
echo json_encode(array('files'=>$files, 'uploadPath'=>$upload_path) );
exit();
}
Then modify your jquery code to handle the json response and extract the response like below :
listFilesOnServer(project_id);
function listFilesOnServer (project_id) {
var items = [];
uploadURI = uploadURI+'/'+project_id;
console.log(project_id+'--KAL--'+uploadURI);
$.getJSON(uploadURI ,function(data,path) {
//Your upload path
console.info("UPLOAD PATH: "+data.uploadPath);
//Your files
console.log(data.files);
//Your processing logic goes here
$('div #list-group').html("").html(items.join(""));
});
}
I want to get data from javascript function (someone created this function before, and I need to get the data from this function):
Here are the javascript function:
function edit(a,b,c,d,e,f,g,h,i,j,k,l){
document.getElementById("frm").id.value=k;
document.getElementById("frm").name.value=a;
document.getElementById("frm").username.value=b;
document.getElementById("frm").emid.value=c;
document.getElementById("frm").dob.value=d;
setCheckedValue(document.forms['frm'].elements['gender'],e);
document.getElementById("frm").job.value=f;
document.getElementById("frm").info.value=g;
document.getElementById("frm").datejoin.value=h;
document.getElementById('locid').value=i;
document.getElementById('deptid').value=m;
var params = encodeURIComponent(document.getElementById("frm").username.value=b);
window.location.href="http://192.168.1.5/eleave/employee.php?lapplicant=" + params;
}
at PHP file I will use b.
This is the button who calls edit():
The code of that button are bellow:
<td align=\"center\">$uname</td><td align=\"center\">$loc1</td><td align=\"center\">$dept</td><td align=\"center\">$date</td><td align=\"center\"><button class=\"btn btn-mini\"data-toggle=\"modal\"href=\"#long\"
onClick=\"javascript:edit('$name','$uname','$emid','$dob','$gender','$job','$info','$datejoin','$locid','$deptid','$myid','$templatelist','newbal');\"><i class=\"icon-pencil\">
I've tried this javascript function in a new file:
function test_function() {
var width = 8;
var height = 9;
window.location.href="http://localhost/belajar/get_test.php?width=" + width + "&height=" + height;
}
and simply call in the PHP file such as:
<?php
$width = $_GET['width'];
$height = $_GET['height'];
print($width . " " . $height);
?>
I want to get b in edit() and use it in PHP file. I've tried to use the 2nd part in edit function. But, it doesn't work. Any idea?