i search internet for my question and i doesn't found how to get my $_POST on another page. Please help.
game.php:
<?php
session_start();
?>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script type="text/javascript">
var drzewo = 0;
function save() {
$.post( "save.php", { drzewo: drzewo } );
window.location.href = "save.php"
}
presave.php
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<?php
session_start();
$_SESSION['drewno'] = $_POST["drzewo"];
echo $_SESSION['drewno']
?>
Undefined array key picture
Your question seems incomplete in my opinion. There are many things missing from your question. From your image I assume you are using it on local server. There are one thing that looks weird is this:
`$.post( "save.php", { drzewo: drzewo } );`
Where is this save.php file stored? Is it stored in your root file? Or along with the operating file. Put a "/" before save.php and see what happens.
There is another thing that seems awkward is your image is showing there is a presave.php file. But I found nothing about that file in your question details.
I can see that you put a redirecting code in your script. JS is not supposed to work like that. What happening here is it is doing an asynchronous operation. That is why PHP can't get the data and showing you a error. If you want to send data send it in a form. Or you can put a redirection in your PHP code after getting the post data. Since it is an AJAX call you can see some reports in your console.log() with the response data.
$.post( "save.php", { drzewo: drzewo } );
window.location.href = "save.php"
Let's analyze these 2 lines of code.
When you send a post request through javascript, it goes through an ajax request and the browser waits till the save.php completes working it's code and returns to the ajax. Here the save.php has received the $_POST data and has processed it.
This processed data by save.php will not output in the browser. It will go to the post (ajax) callback function. If you want to display the data, you need to use a callback function. See this https://www.w3schools.com/jquery/ajax_post.asp for a simple usage of $.post() function.
In the next line of your code you are redirecting your browser to save.php without sending any $_POST data. Since now your save.php does not have any information about $_POST["drzewo"] it throws an error Undefined array key "drzewo" .
Therefore instead of window.location.href page redirect, you need a callback function with your $.post() function. I hope now you understand why you are getting this error.
[Edit]- I have added some code for your better understanding. You can refer to this excellent "JQuery Ajax POST Method" tutorial from freecodecamp.org. https://www.freecodecamp.org/news/jquery-ajax-post-method/
game.php
<?php
session_start();
?>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<button id="btn" onclick="save();">Click this</button>
<script type="text/javascript">
var drzewo = 0;
function save() {
$.post("save.php", {
drzewo: drzewo
},
function(result) {
alert("This result contains the output from save.php : " + result);
//Write here the code you want to execute after the POST request is successfully completed.
}
);
}
</script>
</body>
</html>
save.php
<?php
session_start();
$_SESSION['drewno'] = $_POST["drzewo"];
echo $_SESSION['drewno'];
If you want to pass data from one URL to another, use query string. $.post() makes a POST request, but it seems like save.php is not an endpoint but actually a page.
In other words, you can do this:
window.location.href = `save.php?drzewo=${drzewo}`;
And then on save.php simply read the value from $_GET:
<?php
session_start();
$_SESSION['drewno'] = $_GET["drzewo"];
echo $_SESSION['drewno']
?>
Is it possible to redirect a user to a different page through the use of PHP?
Say the user goes to www.example.com/page.php and I want to redirect them to www.example.com/index.php, how would I do so without the use of a meta refresh? Is it possible?
This could even protect my pages from unauthorized users.
Summary of existing answers plus my own two cents:
1. Basic answer
You can use the header() function to send a new HTTP header, but this must be sent to the browser before any HTML or text (so before the <!DOCTYPE ...> declaration, for example).
header('Location: '.$newURL);
2. Important details
die() or exit()
header("Location: https://example.com/myOtherPage.php");
die();
Why you should use die() or exit(): The Daily WTF
Absolute or relative URL
Since June 2014 both absolute and relative URLs can be used. See RFC 7231 which had replaced the old RFC 2616, where only absolute URLs were allowed.
Status Codes
PHP's "Location"-header still uses the HTTP 302-redirect code, this is a "temporary" redirect and may not be the one you should use. You should consider either 301 (permanent redirect) or 303 (other).
Note: W3C mentions that the 303-header is incompatible with "many pre-HTTP/1.1 user agents. Currently used browsers are all HTTP/1.1 user agents. This is not true for many other user agents like spiders and robots.
3. Documentation
HTTP Headers and the header() function in PHP
What the PHP manual says
What Wikipedia says
What the W3C says
4. Alternatives
You may use the alternative method of http_redirect($url); which needs the PECL package pecl to be installed.
5. Helper Functions
This function doesn't incorporate the 303 status code:
function Redirect($url, $permanent = false)
{
header('Location: ' . $url, true, $permanent ? 301 : 302);
exit();
}
Redirect('https://example.com/', false);
This is more flexible:
function redirect($url, $statusCode = 303)
{
header('Location: ' . $url, true, $statusCode);
die();
}
6. Workaround
As mentioned header() redirects only work before anything is written out. They usually fail if invoked inmidst HTML output. Then you might use a HTML header workaround (not very professional!) like:
<meta http-equiv="refresh" content="0;url=finalpage.html">
Or a JavaScript redirect even.
window.location.replace("https://example.com/");
Use the header() function to send an HTTP Location header:
header('Location: '.$newURL);
Contrary to what some think, die() has nothing to do with redirection. Use it only if you want to redirect instead of normal execution.
File example.php:
<?php
header('Location: static.html');
$fh = fopen('/tmp/track.txt', 'a');
fwrite($fh, $_SERVER['REMOTE_ADDR'] . ' ' . date('c') . "\n");
fclose($fh);
?>
Result of three executions:
bart#hal9k:~> cat /tmp/track.txt
127.0.0.1 2009-04-21T09:50:02+02:00
127.0.0.1 2009-04-21T09:50:05+02:00
127.0.0.1 2009-04-21T09:50:08+02:00
Resuming — obligatory die()/exit() is some urban legend that has nothing to do with actual PHP. It has nothing to do with client "respecting" the Location: header. Sending a header does not stop PHP execution, regardless of the client used.
function Redirect($url, $permanent = false)
{
if (headers_sent() === false)
{
header('Location: ' . $url, true, ($permanent === true) ? 301 : 302);
}
exit();
}
Redirect('http://www.google.com/', false);
Don't forget to die() / exit() !
Output JavaScript from PHP using echo, which will do the job.
echo '<script type="text/javascript">
window.location = "http://www.google.com/"
</script>';
You can't really do it in PHP unless you buffer the page output and then later check for redirect condition. That might be too much of a hassle. Remember that headers are the first thing that is sent from the page. Most of the redirect is usually required later in the page. For that you have to buffer all the output of the page and check for redirect condition later. At that point you can either redirect page user header() or simply echo the buffered output.
For more about buffering (advantages)
What is output buffering?
1. Without header
here you will not face any problem
<?php echo "<script>location.href='target-page.php';</script>"; ?>
2. Using header function with exit()
<?php
header('Location: target-page.php');
exit();
?>
but if you use header function then some times you will get "warning
like header already send" to resolve that do not echo or print before sending headers or you can simply use die() or exit() after header function.
3. Using header function with ob_start() and ob_end_flush()
<?php
ob_start(); //this should be first line of your page
header('Location: target-page.php');
ob_end_flush(); //this should be last line of your page
?>
Most of these answers are forgetting a very important step!
header("Location: myOtherPage.php");
die();
Leaving that vital second line out might see you end up on The Daily WTF. The problem is that browsers do not have to respect the headers which your page return, so with headers being ignored, the rest of the page will be executed without a redirect.
Use:
<?php header('Location: another-php-file.php'); exit(); ?>
Or if you've already opened PHP tags, use this:
header('Location: another-php-file.php'); exit();
You can also redirect to external pages, e.g.:
header('Location: https://www.google.com'); exit();
Make sure you include exit() or include die().
You can use session variables to control access to pages and authorize valid users as well:
<?php
session_start();
if (!isset( $_SESSION["valid_user"]))
{
header("location:../");
exit();
}
// Page goes here
?>
http://php.net/manual/en/reserved.variables.session.php.
Recently, I got cyber attacks and decided, I needed to know the users trying to access the Admin Panel or reserved part of the web Application.
So, I added a log access for the IP address and user sessions in a text file, because I don't want to bother my database.
Many of these answers are correct, but they assume you have an absolute URL, which may not be the case. If you want to use a relative URL and generate the rest, then you can do something like this...
$url = 'http://' . $_SERVER['HTTP_HOST']; // Get the server
$url .= rtrim(dirname($_SERVER['PHP_SELF']), '/\\'); // Get the current directory
$url .= '/your-relative/path-goes/here/'; // <-- Your relative path
header('Location: ' . $url, true, 302); // Use either 301 or 302
header( 'Location: http://www.yoursite.com/new_page.html' );
Use the following code:
header("Location: /index.php");
exit(0);
I've already answered this question, but I'll do it again since in the meanwhile I've learnt that there are special cases if you're running in CLI (redirects cannot happen and thus shouldn't exit()) or if your webserver is running PHP as a (F)CGI (it needs a previously set Status header to properly redirect).
function Redirect($url, $code = 302)
{
if (strncmp('cli', PHP_SAPI, 3) !== 0)
{
if (headers_sent() !== true)
{
if (strlen(session_id()) > 0) // If using sessions
{
session_regenerate_id(true); // Avoids session fixation attacks
session_write_close(); // Avoids having sessions lock other requests
}
if (strncmp('cgi', PHP_SAPI, 3) === 0)
{
header(sprintf('Status: %03u', $code), true, $code);
}
header('Location: ' . $url, true, (preg_match('~^30[1237]$~', $code) > 0) ? $code : 302);
}
exit();
}
}
I've also handled the issue of supporting the different HTTP redirection codes (301, 302, 303 and 307), as it was addressed in the comments of my previous answer. Here are the descriptions:
301 - Moved Permanently
302 - Found
303 - See Other
307 - Temporary Redirect (HTTP/1.1)
To redirect the visitor to another page (particularly useful in a conditional loop), simply use the following code:
<?php
header('Location: mypage.php');
?>
In this case, mypage.php is the address of the page to which you would like to redirect the visitors. This address can be absolute and may also include the parameters in this format: mypage.php?param1=val1&m2=val2)
Relative/Absolute Path
When dealing with relative or absolute paths, it is ideal to choose an absolute path from the root of the server (DOCUMENT_ROOT). Use the following format:
<?php
header('Location: /directory/mypage.php');
?>
If ever the target page is on another server, you include the full URL:
<?php
header('Location: http://www.ccm.net/forum/');
?>
HTTP Headers
According to HTTP protocol, HTTP headers must be sent before any type of content. This means that no characters should ever be sent before the header — not even an empty space!
Temporary/Permanent Redirections
By default, the type of redirection presented above is a temporary one. This means that search engines, such as Google Search, will not take the redirection into account when indexing.
If you would like to notify search engines that a page has been permanently moved to another location, use the following code:
<?
header('Status: 301 Moved Permanently', false, 301);
header('Location: new_address');
?>
For example, this page has the following code:
<?
header('Status: 301 Moved Permanently', false, 301);
header('Location: /pc/imprimante.php3');
exit();
?>
When you click on the link above, you are automatically redirected to this page. Moreover, it is a permanent redirection (Status: 301 Moved Permanently). So, if you type the first URL into Google, you will automatically be redirected to the second, redirected link.
Interpretation of PHP Code
The PHP code located after the header() will be interpreted by the server, even if the visitor moves to the address specified in the redirection. In most cases, this means that you need a method to follow the header() function of the exit() function in order to decrease the load of the server:
<?
header('Status: 301 Moved Permanently', false, 301);
header('Location: address');
exit();
?>
header("Location: https://www.example.com/redirect.php");
Direct redirect to this link https://www.example.com/redirect.php
$redirect = "https://www.example.com/redirect.php";
header("Location: $redirect");
First get $redirect value and than redirect to [value] like: https://www.example.com/redirect.php
Use:
<?php
header('Location: redirectpage.php');
header('Location: redirectpage.php');
exit();
echo "<script>location.href='redirectpage.php';</script>";
?>
This is a regular and normal PHP redirect, but you can make a redirecting page with a few seconds wait by the below code:
<?php
header('refresh:5;url=redirectpage.php '); // Note: here 5 means 5 seconds wait for redirect.
?>
Yes, it's possible to use PHP. We will redirect to another page.
Try following code:
<?php
header("Location:./"); // Redirect to index file
header("Location:index.php"); // Redirect to index file
header("Location:example.php");
?>
To redirect in PHP use:
<?php header('Location: URL'); exit; ?>
In the eve of the semantic web, correctness is something to consider. Unfortunately, PHP's "Location"-header still uses the HTTP 302-redirect code, which, strictly, isn't the best one for redirection. The one it should use instead, is the 303 one.
W3C is kind enough to mention that the 303-header is incompatible with "many pre-HTTP/1.1 user agents," which would amount to no browser in current use. So, the 302 is a relic, which shouldn't be used.
...or you could just ignore it, as everyone else...
You can use some JavaScript methods like below
self.location="http://www.example.com/index.php";
window.location.href="http://www.example.com/index.php";
document.location.href = 'http://www.example.com/index.php';
window.location.replace("http://www.example.com/index.php");
Yes, you can use the header() function,
header("Location: http://www.yourwebsite.com/user.php"); /* Redirect browser */
exit();
And also best practice is to call the exit() function right after the header() function to avoid the below code execution.
According to the documentation, header() must be called before any actual output is sent.
Like others here said, sending the location header with:
header( "Location: http://www.mywebsite.com/otherpage.php" );
but you need to do it before you've sent any other output to the browser.
Also, if you're going to use this to block un-authenticated users from certain pages, like you mentioned, keep in mind that some user agents will ignore this and continue on the current page anyway, so you'll need to die() after you send it.
Here are my thoughts:
IMHO, the best way to redirect an incoming request would be by using location headers, which goes
<?php
header("Location: /index.php");
?>
Once this statement is executed, and output sent out, the browser will begin re-directing the user. However, ensure that there hasn't been any output (any echo / var_dump) before sending headers, else it will lead to errors.
Although this is a quick-and-dirty way to achieve what was originally asked, it would eventually turn out to be an SEO disaster, as this kind of redirect is always interpreted as a 301 / 302 redirect, hence search engines will always see your index page as a re-directed page, and not something of a landing page / main page.
Hence it will affect the SEO settings of the website.
The best way to redirect with PHP is the following code...
header("Location: /index.php");
Make sure no code will work after
header("Location: /index.php");
All the code must be executed before the above line.
Suppose,
Case 1:
echo "I am a web developer";
header("Location: /index.php");
It will redirect properly to the location (index.php).
Case 2:
return $something;
header("Location: /index.php");
The above code will not redirect to the location (index.php).
You can try using
header('Location:'.$your_url)
for more info you can refer php official documentation
We can do it in two ways:
When the user comes on https://bskud.com/PINCODE/BIHAR/index.php then redirect to https://bskud.com/PINCODE/BIHAR.php
By the below PHP code
<?php
header("Location: https://bskud.com/PINCODE/BIHAR.php");
exit;
?>
Save the above code in https://bskud.com/PINCODE/BIHAR/index.php
When any condition is true then redirect to another page:
<?php
$myVar = "bskud";
if ($myVar == "bskud") {
?>
<script> window.location.href="https://bskud.com"; </script>
<?php
}
else {
echo "<b>Check the website name again</b>";
}
?>
1. Using header, a built-in PHP function
a) Simple redirect without parameters
<?php
header('Location: index.php');
?>
b) Redirect with GET parameters
<?php
$id = 2;
header("Location: index.php?id=$id&msg=succesfully redirect");
?>
2. Redirect with JavaScript in PHP
a) Simple redirect without parameters
<?php
echo "<script>location.href='index.php';</script>";
?>
b) Redirect with GET parameters
<?php
$id = 2;
echo "<script>location.href='index.php?id=$id&msg=succesfully redirect';</script>";
?>
Using header function for routing
<?php
header('Location: B.php');
exit();
?>
Suppose we want to route from A.php file to B.php than we have to take help of <button> or <a>. Lets see an example
<?php
if(isset($_GET['go_to_page_b'])) {
header('Location: B.php');
exit();
}
?>
<p>I am page A</p>
<button name='go_to_page_b'>Page B</button>
B.php
<p> I am Page B</p>
Use:
<?php
$url = "targetpage"
function redirect$url(){
if (headers_sent()) == false{
echo '<script>window.location.href="' . $url . '";</script>';
}
}
?>
There are multiple ways of doing this, but if you’d prefer php, I’d recommend the use of the header() function.
Basically
$your_target_url = “www.example.com/index.php”;
header(“Location : $your_target_url”);
exit();
If you want to kick it up a notch, it’s best to use it in functions. That way, you are able to add authentications and other checking elemnts in it.
Let’s try with by checking the user’s level.
So, suppose you have stored the user’s authority level in a session called u_auth.
In the function.php
<?php
function authRedirect($get_auth_level,
$required_level,
$if_fail_link = “www.example.com/index.php”){
if ($get_auth_level != $required_level){
header(location : $if_fail_link);
return false;
exit();
}
else{
return true;
}
}
. . .
You’ll then call the function for every page that you want to authenticate.
Like in page.php or any other page.
<?php
// page.php
require “function.php”
// Redirects to www.example.com/index.php if the
// user isn’t authentication level 5
authRedirect($_SESSION[‘u_auth’], 5);
// Redirects to www.example.com/index.php if the
// user isn’t authentication level 4
authRedirect($_SESSION[‘u_auth’], 4);
// Redirects to www.someotherplace.com/somepage.php if the
// user isn’t authentication level 2
authRedirect($_SESSION[‘u_auth’], 2, “www.someotherplace.com/somepage.php”);
. . .
References;
http://php.net/manual/en/function.header.php
I like the kind of redirection after counting seconds
<?php
header("Refresh: 3;url=https://theweek.com.br/índex.php");
I apologize if my question title is at all confusing, this is my first post and despite reading https://stackoverflow.com/help/on-topic I feel like I may still have some flaws in my question-writing abilities.
TL;DR: JavaScript animation works if I do not use header("location: ProjectUserProfile.php?UploadSuccessful"), but doesn't if I do (and I need to). Any reasons or solutions?
Anyway,
The context:
I have a html form embedded in a php document which is used to upload an image, delete an image, etc.
The main code takes place on ProjectUserProfile.php (and works perfectly), and after the image has been uploaded, I use header("location: ProjectUserProfile.php?UploadSuccessful") to return to the page, and prompt a refresh.
The problem:
If I do not use header("location: ProjectUserProfile.php?UploadSuccessful"), the image will not change, etc, so it is a necessity for me to use it. However, recently I have implemented "slide in notifications" if you will which display success and error messages. These work correctly normally, but fail to appear if I return to the page using header("location: ProjectUserProfile.php?UploadSuccessful").
<?php
// all the uploading etc that works occurs here
header("location: ProjectUserProfile.php?UploadSuccessful");
echo "<script> openMessage('Information','The duplicate files were successfully uploaded!') </script>";
?>
After redirecting to ProjectUserProfile.php?UploadSuccessful, there is failure to acknowledge openMessage, and so nothing happens.
Whereas, had I not used header("location: ProjectUserProfile.php?UploadSuccessful"), the "notification" would slide in and work.
Does anyone have any solutions or suggestions?
Relevant code for the javascript function 'openMessage()' below:
function openMessage(Purpose, DisplayText){
var notificationDiv = document.getElementById("slideinNotification");
if(notificationDiv){
alert("exists");
}
else{
alert("does not exist");
}
document.addEventListener("DOMContentLoaded", function(event){
if(Purpose == "Information"){
document.getElementById("slideInNotification").style.backgroundColor = "#4CAF50";
}
else if(Purpose == "Warning"){
document.getElementById("slideInNotification").style.backgroundColor = "#FF9800";
}
else if(Purpose == "Error"){
document.getElementById("slideInNotification").style.backgroundColor = "#F44336";
}
document.getElementById("notificationMessage").innerHTML = DisplayText;
moveElement();
});
}
<?php
if($filesWereDeleted == true){
$connection = new mysqli("localhost", "root", "root", "project");
$result = $connection -> query("UPDATE UserProfileImage SET UploadStatus = 1 WHERE UserUniqueID = '$userProfileId'");
header("location: ProjectUserProfile.php?DeletionSuccessful");
echo "<script> openMessage('Information','The profile image was successfully deleted!') </script>";
}
?>
<div id = "slideInNotification" class = "slideNotification">
<p id = "notificationMessage" class = "notificationInfo"></p>
×
</div>
First, your UPDATE query exposed to SQL Injection, if you get the id from the user, I hope note, read about prepared statement.
Second, about your problem, you echo the notify script in the same response you send the Location header , so before the the browser even load your JavaScript code it redirect the client to the new page when your notify javascript code not echoed...
If your problem is that user updates it's image and it's doesn't appear due it cached you can use uniqid() in the get query of image src or modify time, more effective
The thing is, once you use header("location: ProjectUserProfile.php?DeletionSuccessful"); you're not supposed to write anything into the output, as the browser will ignore it. That aside, I'm not exactly sure about how a single line of <script> openMessage('Information','The duplicate files were successfully uploaded!') </script> could mean anything to the browser, since that wouldn't constitute an HTML document by itself, unless you're receiving it through AJAX or loading it into an <iframe>; but even then, I doubt mixing control instructions (a redirect) with view markup (the script tag) would be a good idea.
You're going to have to post the confirmation message in ProjectUserProfile.php, so move your script tag there. You can use that ?UploadSuccessful bit as reference for you to know whether to include your script for the message in the document is necessary or not.
I have a working PHP script running quite long (5 minutes at maximum). I want to inform to user after each step ("task 1 of 10 done").
I know, this is an old problem and I tried to solve it with server side events.
On the HTML side there is a form with my PHP script as the action:
<form action="my_script.php"><input type="submit" value="Submit!"/></form>
One requirement is, that the hole HTML page works (and calls my_script.php by submitting the form) without any scripting. The "live status reports" form the PHP script are intended to be an additional feature, but the page should completly work without it.
This is how I tried to do it: On the client side I added an onsubmit() event to the form tag calling a JavaScript function:
var source = new EventSource("my_script.php");
source.onmessage = function(event)
{
// display data in a div
};
On the server side the PHP should send some messages to the calling HTML page (while doing its tasks) and after all tasks are done build a new HTML pages with all output.
I tried to do that like this:
header('Content-Type: text/event-stream');
header('Cache-Control: no-cache');
$output_stream = '';
// do something here. If a taks is done call send_to_output('something done');
function send_to_output($message)
{
global $output_stream;
echo "data: {$message}\n\n";
flush();
$output_stream .= $message;
}
header('Content-Type: text/html');
header('Cache-Control: no-cache');
echo "Everything is finished";
echo $output_stream;
But that doesn't work.
After some testing, I think that there are two problems:
The browser can't cope with the header 'Content-Type: text/event-stream' and offers to download the file.
The form action (<form action="my_script.php">) and the JavaScript event (var source = new EventSource("my_script.php");) seem each to open an own thread of the PHP script, so that there are two instances of this script running on the server.
How can I solve those problems?
To accomplish this in the olden days, your form would submit directly to my_script.php which would direct the browser to load the content from that URL. my_script.php would first echo enough HTML for the browser to render the whole page, then flush its output buffers to ensure the client received it all. Part of that page data would be a JS global function -- something like update_status, that will receive the status events and update the UI. Then, on the same request, it would start the processing.
At various points during the processing, the script would echo something like:
<script type="text/javascript">update_status('15%');</script>
and flush it to the client. The client would run these script tags as they came in, call the relevant function, and update the UI.
Today we have WebSockets. That is by far the best way to do it, providing your users have a capable browser.
You could also poll the server on a setInterval, but that would require splitting execution off into a different process (so as not to hang the browser or waste a web server worker) and adding an endpoint to the backend to expose the status of each process.
I would just do this with standard ajax polling.
In this example i am just writing to a text file from the long running script, and loading it directly in the poll.
You would probably write to a db etc:
<html><head></head>
<body>
<form action="long.php" method="post" id="myform">
<input type="submit" value="submit "/>
</form>
<div id="progress">
</div>
<div id="result">
</div>
<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
<script type="application/javascript">
$(function(){
var checkid ='';
$('#myform').submit(function(ev){
ev.preventDefault();
var fm = $(this);
$.ajax({
type: "POST",
url: fm.attr('action'),
data: "",
success: function(data){
clearInterval(checkid);
$('#result').html(data);
}
});
checkid = setInterval(function(){
$.get('progress.txt', function(data){
$('#progress').html(data);
});
},1000);
})
});
</script>
</body>
</html>
//long.php
for($i=1;$i<10;$i++){
sleep(2);
file_put_contents('progress.txt', "done {$i} iterations", LOCK_EX);
}
echo 'all done';
There are quite a lot of solutions or workarounds for problems like this. This is surely not the place to discuss which is general the best one. The intention of my question was just: How to solve that problem with Server Side Events?
Inspired by user574632 I've found now a quick and dirty solution:
My long running PHP scripts puts all messages into a file:
function send_to_output($message)
{
global $output_stream;
$output_stream .= $message;
file_put_contents('progress.txt',$output_stream);
}
Another PHP script sends all contents of this file to the client:
<?php
header('Content-Type: text/event-stream');
header('Cache-Control: no-cache');
$file_content = file_get_contents('progress.txt');
echo "data: {$file_content}\n\n";
flush();
?>
In the HTML I simply had to change to file name of var source = new EventSource("name.php").
This seems to work but it is no real smooth and nice looking solution.