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How to upload multiple files after removing some files from preview PHP JS

an example I've uploaded the 3 Image (files), In the preview, I did not like 1 file that has been deleted, rest of the files 2 and
it should upload 2 but when I press submit button 3 files inserting into the database
please help me not working
html code
<form action="" method="post" enctype="multipart/form-data">
<div id="filediv">
<input name="upload[]" type="file" id="upload" multiple="multiple" />
</div>
<input type="submit" value="Upload Image" name="submit"/>
</form>
Jquery code
function deletePreview(ele, i) {
"use strict";
try {
$(ele).parent().remove();
filesToUpload.splice(i, 1);
} catch (e) {
console.log(e.message);
}
}
$("#upload").on('change', function() {
"use strict";
var filesToUpload = [];
if (this.files.length >= 1) {
$("[id^=previewImg]").remove();
$.each(this.files, function(i, img) {
var reader = new FileReader(),
newElement = $("<div id='previewImg" + i + "' class='abcd'><img /></div>"),
deleteBtn = $("<span class='delete' onClick='deletePreview(this, " + i + ")'>delete</span>").appendTo(newElement),
preview = newElement.find("img");
reader.onloadend = function() {
preview.attr("src", reader.result);
preview.attr("alt", img.name);
};
var f = document.getElementById("upload").files[i];
filesToUpload.push(f);
if (img) {
reader.readAsDataURL(img);
} else {
preview.src = "";
}
newElement.appendTo("#filediv");
});
}
});
php code
$total = count($_FILES['upload']['name']);
for( $i=0 ; $i < $total ; $i++ ) {
$tmpFilePath = $_FILES['upload']['tmp_name'][$i];
if ($tmpFilePath != ""){
$newFilePath = "./upload_files/" . $_FILES['upload']['name'][$i];
if(move_uploaded_file($tmpFilePath, $newFilePath)) {
}
}
}
Thanks in advance

Basic multiple file upload not working on mobile

I created a very basic example of a multiple file upload form (reference), it works perfect on desktop but not on mobile, at least the ones I am testing with.
On Mobile (Xiaomi Mi4 [Android version: 6.1] - Google Chrome/Mozilla Firefox): When I click on Choose files I see this screen:
If I choose Google Photos and select multiple files, only the first file will be inserted into the form.
If I select the Gallery (native) app and select multiple files I get the correct number on the form but when I click upload I get the "Aw Snap" screen:
Any idea why this is happening?
Besides Google Photos and the native app I tried 5 different apps, the last one, Piktures actually worked!
Please tell me this is not an app thing... is there a way to get the files correctly?
Code attached:
<form method="post" enctype="multipart/form-data">
<input type="file" name="my_file[]" multiple>
<input type="submit" value="Upload">
</form>
<?php
if (isset($_FILES['my_file'])) {
$myFile = $_FILES['my_file'];
$fileCount = count($myFile["name"]);
for ($i = 0; $i < $fileCount; $i++) {
?>
<p>File #<?= $i+1 ?>:</p>
<p>
Name: <?= $myFile["name"][$i] ?><br>
Temporary file: <?= $myFile["tmp_name"][$i] ?><br>
Type: <?= $myFile["type"][$i] ?><br>
Size: <?= $myFile["size"][$i] ?><br>
Error: <?= $myFile["error"][$i] ?><br>
</p>
<?php
}
}
?>
If you wish to test: http://odedta.com/projects/jqueryfileupload/
Thanks!

Try this might help you this is only front end part of file upload with js
window.onload = function() {
if (window.File && window.FileList && window.FileReader) {
var filesInput = document.getElementById("uploadImage");
filesInput.addEventListener("change", function(event) {
var files = event.target.files;
var output = document.getElementById("result");
for (var i = 0; i < files.length; i++) {
var file = files[i];
if (!file.type.match('image'))
continue;
var picReader = new FileReader();
picReader.addEventListener("load", function(event) {
var picFile = event.target;
var div = document.createElement("div");
div.innerHTML = "<img class='thumbnail' src='" + picFile.result + "'" +
"title='" + picFile.name + "'/>";
output.insertBefore(div, null);
});
picReader.readAsDataURL(file);
}
});
}
}
<input type="file" id="uploadImage" name="termek_file" class="file_input" multiple/>
<div id="result" class="uploadPreview">

I am not sure exactly about that mobile browsers are support multiple attribute I read some article it is not support or is not standart, any way If you want to post multiple image; You can see full code below
First Step;
You should use FileReader for load on browser as locally
Multiple file loading with FileReader
document.getElementById("filesToUpload").onchange = function () {
var fileIndex = 0;
for ( var x= 0; x < input.files.length; x++) {
//add to list
var li = document.createElement('li');
//Filename listing
li.setAttribute('id','li_'+x);
li.innerHTML = 'File ' + (x + 1) + ': ' + input.files[x].name;
list.append(li);
//FileReader create and set onload event
var reader = new FileReader();
reader.onload = function (data) {
data.target.result;
}
//Read file
reader.readAsDataURL(input.files[x]);
}
}
Second Step
You can set image content to textarea as base64 data for each file
reader.onload = function (data) {
//....
//Split base64 data from DataURL (// "data:image/png;base64,.....)
var b64 = data.target.result.split(',')[1];
var b64Input = document.createElement('textarea');
b64Input.setAttribute('name','file64[]');
b64Input.value = b64;
//...
}
Third Step
Then you can send to your php file whole data and save your content as image
for($i = 0; $i<count($_POST["fileName"]);$i++){
echo $_POST["fileName"][$i]."<br>";
//decode base64 content and put file
file_put_contents($_POST["fileName"][$i], base64_decode($_POST["file64"][$i]));
}
Full Code
HTML & JavaScript
<input name="filesToUpload[]" id="filesToUpload" type="file" multiple />
<form method="post" action="multipleFileUpload.php" enctype="multipart/form-data" id="formMultipleFileUpload">
<ul id="fileList">
</ul>
<input type="submit" value="Upload" id="btnUpload">
</form>
<script type="text/javascript">
var input = document.getElementById('filesToUpload');
var list = document.getElementById('fileList');
document.getElementById("filesToUpload").onchange = function () {
var fileIndex = 0;
for ( var x= 0; x < input.files.length; x++) {
//add to list
var li = document.createElement('li');
li.setAttribute('id','li_'+x);
li.innerHTML = 'File ' + (x + 1) + ': ' + input.files[x].name;
list.append(li);
var reader = new FileReader();
reader.onload = function (data) {
var li = document.getElementById('li_'+fileIndex);
var previewImg = document.createElement('img');
previewImg.setAttribute('width','50');
previewImg.setAttribute('height','50');
li.append(previewImg);
previewImg.src = data.target.result;
var b64 = data.target.result.split(',')[1];
var b64Input = document.createElement('textarea');
b64Input.setAttribute('name','file64[]');
b64Input.value = b64;
li.append(b64Input);
var fileName = document.createElement('input');
fileName.setAttribute('name','fileName[]');
fileName.value = input.files[fileIndex].name;
li.append(fileName);
fileIndex++;
}
reader.readAsDataURL(input.files[x]);
}
}
PHP (multipleFileUpload.php)
<?php
for($i = 0; $i<count($_POST["fileName"]);$i++){
echo $_POST["fileName"][$i]."<br>";
file_put_contents($_POST["fileName"][$i], base64_decode($_POST["file64"][$i]));
}
?>
Working screenshot

javascript replace background image in drawingBoard.js

I need to change the background image inside of canvas with the leimi drawingboard.js, but I have no idea how to make it.
I need to show different images so that the user can choose between them with which he is going to work
Here is my form:
<div id="container">
<div class="example" data-example="1"> // THIS DIV IS THE CANVAS
<div class="board" id="default-board"></div> //THIS ID HAVE A IMAGE AND THE CONTROLLERS
</div>
<form class="drawing-form" method="post" name="diagram" id="diagram" enctype="multipart/form-data">
<div id="board"></div>
<input type="hidden" name="image" value="">
<input type="hidden" name="idPac" value="<?php echo $id_paciente; ?>" />
<input type="hidden" name="idDoc" value="<?php echo $user_id; ?>" />
<br><hr>
<button class="btn btn-info" id="btnUpload"><?php $translate->__('Save Diagram'); ?></button>
</form>
<div id="ldiag" style="display:none;"><img src="images/loading4.gif" /></div>
</div>
And the javascript code is:
<script src="js/drawingboard.min.js"></script>
<script data-example="1">
var defaultBoard = new DrawingBoard.Board("default-board", {
background: "imagenes/canvas/cara.jpg", //THIS IS THE IMAGE I NEED TO CHANGE FOR OTHERS IF NEEDED, EXAMPLE /pie.png, /cuerpo.png
droppable: true,
webStorage: false,
enlargeYourContainer: true,
addToBoard: true,
stretchImg: false
});
defaultBoard.addControl("Download");
$(".drawing-form").on("submit", function(e) {
var img = defaultBoard.getImg();
var imgInput = (defaultBoard.blankCanvas == img) ? "" : img;
$(this).find("input[name=image]").val( imgInput );
defaultBoard.clearWebStorage();
});
$(function() {
$("#file-input").change(function(e) {
var file = e.target.files[0],
imageType = /image.*/;
if (!file.type.match(imageType))
return;
var reader = new FileReader();
reader.onload = fileOnload;
reader.readAsDataURL(file);
});
function fileOnload(e) {
var $img = $("<img>", { src: e.target.result });
var canvas = $("#default-board")[0];
var context = canvas.getContext("2d");
$img.load(function() {
context.drawImage(this, 0, 0);
});
}
});
</script>
<script src="js/yepnope.js"></script>
<script>
var iHasRangeInput = function() {
var inputElem = document.createElement("input"),
smile = ":)",
docElement = document.documentElement,
inputElemType = "range",
available;
inputElem.setAttribute("type", inputElemType);
available = inputElem.type !== "text";
inputElem.value = smile;
inputElem.style.cssText = "position:absolute;visibility:hidden;";
if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {
docElement.appendChild(inputElem);
defaultView = document.defaultView;
available = defaultView.getComputedStyle &&
defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== "textfield" &&
(inputElem.offsetHeight !== 0);
docElement.removeChild(inputElem);
}
return !!available;
};
yepnope({
test : iHasRangeInput(),
nope : ["css/fd-slider.min.css", "js/fd-slider.min.js"],
callback: function(id, testResult) {
if("fdSlider" in window && typeof (fdSlider.onDomReady) != "undefined") {
try { fdSlider.onDomReady(); } catch(err) {}
}
}
});
</script>

File not Uploading in File Reader

I am using File Reader for selecting and uploading images.
My images are selected previewing but not uploaded when i hit submit button.
In upload.php the output of $_FILES is an empty array.
Where is problem?
html
<form action="upload.php" method="post" enctype="multipart/form-data">
<div id="wrapper" style="margin-top: 20px;">
<input id="fileUpload" multiple="multiple" type="file"/>
<input type="submit" value="Upload Image" name="upload">
<div id="image-holder">
</div>
</div>
</form>
Javascript
<script>
$(document).ready(function() {
$("#fileUpload").on('change', function() {
//Get count of selected files
var countFiles = $(this)[0].files.length;
var imgPath = $(this)[0].value;
var extn = imgPath.substring(imgPath.lastIndexOf('.') + 1).toLowerCase();
var image_holder = $("#image-holder");
image_holder.empty();
if (extn == "gif" || extn == "png" || extn == "jpg" || extn == "jpeg") {
if (typeof(FileReader) != "undefined") {
//loop for each file selected for uploaded.
for (var i = 0; i < countFiles; i++)
{
var reader = new FileReader();
reader.onload = function(e) {
$("<img />", {
"src": e.target.result,
"class": "thumb-image"
}).appendTo(image_holder);
}
image_holder.show();
reader.readAsDataURL($(this)[0].files[i]);
}
} else {
alert("This browser does not support FileReader.");
}
} else {
alert("Pls select only images");
}
});
});
</script>
upload.php
<?php
require_once './include/db_connection.php';
if(isset($_POST['upload']))
{
print_r($_FILES);
die();
if(!empty($_FILES)){
$targetDir = "upload/";
$fileName = $_FILES['file']['name'];
$targetFile = $targetDir.$fileName;
if(move_uploaded_file($_FILES['file']['tmp_name'],$targetFile))
{
//insert file information into db table
$sql = mysqli_query($link,"INSERT INTO files (file_name, uploaded) VALUES('".$fileName."','".date("Y-m-d H:i:s")."')");
echo 'file inserted';
}
else
{
echo 'Query not working';
}
}
else
{
echo 'No file selected';
}
}

Your file input doesn't have a name.
The name of a form control is used to determine what key it will have in the submitted data. Controls without them will not be successful (i.e. will not appear in the submitted data at all).

POST Json to PHP get VAR

i have a form like this:
<?php
include '../db/baza.php';
?>
<?php include 'vrh.php' ?>
<div id="stranica">
<div id="stranicaOkvir">
<form action="dodaj_sliku_obrada.php" method="POST" enctype="multipart/form-data" id="upload" class="upload">
<fieldset>
<legend>Dodaj sliku</legend>
<?php $upit = "SELECT kategorija_ID, kategorija_naziv FROM kategorije ORDER BY kategorija_ID ASC";
$ispis = mysql_query($upit) or die(mysql_error());
$blok_ispis = mysql_fetch_assoc($ispis);
$ukupno = mysql_num_rows($ispis); ?>
<p><strong>Obavezno odaberite kategoriju kojoj slika pripada</strong></p>
<p> <select name="kategorija" id="kategorija">
<?php do { ?>
<option value="<?php echo $blok_ispis['kategorija_ID']; ?>"> <?php echo $blok_ispis['kategorija_naziv']; ?></option>
<?php } while ($blok_ispis = mysql_fetch_assoc($ispis)); ?>
<?php mysql_free_result($ispis);?>
</select>
</p>
<input type="file" id="file" name="file[]" required multiple>
<input type="submit" id="submit" name="submit" value="Dodaj sliku">
<div class="progresbar">
<span class="progresbar-puni" id="pb"><span class="progresbar-puni-tekst" id="pt"></span></span>
</div>
<div id="uploads" class="uploads">
Uploaded file links will apper here.
<script src="js/dodaj_Sliku.js"></script>
<script>
document.getElementById('submit').addEventListener('click',function(e){
e.preventDefault();
var f = document.getElementById('file'),
pb = document.getElementById('pb'),
pt = document.getElementById('pt');
app.uploader({
files: f,
progressBar: pb,
progressText: pt,
processor: 'dodaj_sliku_obrada.php',
finished: function(data){
var uploads = document.getElementById('uploads'),
uspjesno_Dodano = document.createElement('div'),
neuspjelo_Dodavanje = document.createElement('div'),
anchor,
span,
x;
if(data.neuspjelo_Dodavanje.length){
neuspjelo_Dodavanje.innerHTML = '<p>Nazalost, sljedece nije dodano: </p>';
}
uploads.innerText = '';
uploads.textContent = '';
for( x = 0; x < data.uspjesno_Dodano.length; x = x + 1){
anchor = document.createElement('a');
anchor.href = '../slike/galerija/' + data.uspjesno_Dodano[x].file;
anchor.innerText = data.uspjesno_Dodano[x].name;
anchor.textContent = data.uspjesno_Dodano[x].name;
anchor.target = '_blank';
uspjesno_Dodano.appendChild(anchor);
}
for( x = 0; x < data.neuspjelo_Dodavanje.length; x = x + 1){
span = document.createElement('span');
span.innerText = data.neuspjelo_Dodavanje[x].name;
span.textContent = data.neuspjelo_Dodavanje[x].name;
neuspjelo_Dodavanje.appendChild(span);
}
uploads.appendChild(uspjesno_Dodano);
uploads.appendChild(neuspjelo_Dodavanje);
},
error: function(){
console.log('Ne radi!');
}
});
});
</script>
<script>
</script>
</div>
</fieldset>
</form>
</div>
</div>
<?php include 'dno.php' ?>
The .js looks like this
var app = app || {};
(function(o){
"use strict";
//Privatne metode
var ajax, getFormData, setProgress;
ajax = function(data){
var xmlhttp = new XMLHttpRequest(), uspjesno_Dodano;
xmlhttp.addEventListener('readystatechange', function(){
if(this.readyState === 4){
if(this.status === 200){
uspjesno_Dodano = JSON.parse(this.response);
if(typeof o.options.finished === 'function'){
o.options.finished(uspjesno_Dodano);
}
} else {
if(typeof o.options.error === 'function'){
o.options.error();
}
}
}
});
xmlhttp.upload.addEventListener('progress', function(event){
var percent;
if(event.lengthComputable === true){
percent = Math.round((event.loaded / event.total) * 100);
setProgress(percent);
}
});
xmlhttp.open('post', o.options.processor);
xmlhttp.send(data);
};
getFormData = function(source){
var data = new FormData(), i;
for(i = 0; i < source.length; i = i + 1){
data.append('file[]', source[i]);
}
data.append('ajax', true);
data.append('kategorija', o.options.kategorija);
return data;
};
setProgress = function(value){
if(o.options.progressBar !== undefined){
o.options.progressBar.style.width = value ? value + '%' : 0;
}
if(o.options.progressText !== undefined){
o.options.progressText.innerText = value ? value + '%' : '';
o.options.progressText.textContent = value ? value + '%' : '';
}
};
o.uploader = function(options){
o.options = options;
if(o.options.files !== undefined){
ajax(getFormData(o.options.files.files));
}
}
}(app));
On the process.php part i want to listen the option value from select
"<select name="kategorija" id="kategorija">"
on the process.php when i
<?php
$kategorija = $_POST['kategorija'];
echo echo $kategorija;
?>
i alwasy get a 0 value, so what i am doing wrong? The file[] processing is working fine, but can't get it to work with a addtional variable.

You don't need to echo echo $kategorija; It should be echo $kategorija; If this causes an issue, which it might, try var_dump($kategorija) to view the contents of the variable.
Also, you're including your js throughout the page, this should be refactored and included properly in the head. The php should not be in the form of the document, it should be contained outside and included like you are doing with '../db/baza.php'; Finally, look into using PDO to connect to your db.