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How to refresh page and send variable

i have a php page where i press a button to edit on another page the mysql db records:
page name 'distintaBase.php'
here there is a list of names that are products name. Each product cointains a list of components.
When i press the edit button for one product i'm redirect to the new page 'modifDistBase.php'.
the $dist_base variable is passed to the new page. I use it on the page title
<h2>Modifica distinta base <?php echo $_GET['dist_base']; ?></h2>
and then to load the mysql db
<?php
$dist_base = $_GET['dist_base'];
$sql = "SELECT $dist_base.Id, $dist_base.Designator, $dist_base.Quantity, $dist_base.Description, $dist_base.Package,
$dist_base.Manufacturer, $dist_base.Pn_Manufacturer, $dist_base.Pn_Utterson, $dist_base.Mounted
FROM $dist_base";
?>
pressing ADD button i add a new component
if(isset($_POST['add_item'])){
$designator = $_POST['designator'];
$quantity = $_POST['quantity'];
$description = $_POST['description'];
$package = $_POST['package'];
$manufacturer = $_POST['manufacturer'];
$pn_manufacturer = $_POST['pn_manufacturer'];
$pn_utterson = $_POST['pn_utterson'];
$mounted = $_POST['mounted'];
$sql = "INSERT INTO $dist_base (designator,quantity,description,package,manufacturer,pn_manufacturer,pn_utterson,mounted)
VALUES ('$designator','$quantity','$description','$package','$manufacturer','$pn_manufacturer','$pn_utterson','$mounted')";
if ($conn->query($sql) === TRUE) {
echo '<script>window.location.replace("modifDistBase.php?dist_base=" + $dist_base.value)</script>';
} else {
echo "Errore: " . $sql . "<br>" . $conn->error;
}
}
there is something wrong probably on the javascript.
echo '<script>window.location.replace("modifDistBase.php?dist_base=" + $dist_base.value)</script>';
the new component is added to the database (for example with #5 id) but do not appear on the page modifDistBase.php
if i press refresh on the browser or f5 now i can see the new component (#5 id) but on the database a new one is added #6 with the same items as #5
PS
- header is already sent by menù page
- have tried window.location.href with same result

Why don't you try with:
header('Location: modifDistBase.php?dist_base='.$dist_base);
instead of echo javascript you can redirect immediatelly to the page + the variable

there are some thing to fix on your code
Note the javascript you output with
echo '<script>window.location.replace("modifDistBase.php?dist_base=" + $dist_base.value)</script>';
will be precisely
<script>window.location.replace("modifDistBase.php?dist_base=" + $dist_base.value)</script>
Without checking the correctness of the js related to your goal, it's immediate to see you should write instead
echo '<script>window.location.replace("modifDistBase.php?dist_base="' . $dist_base . '")</script>';
to inject the php value into the javascript string.
(you've also forgot a double quote b.t.w)
If you have doubts regarding your javascript, you can inspect the page on the browser and look at it (right click and "inspect element" or "analyse element").
Mind it is not recommended that you take the user input and use it as it is in an SQL instruction. You should do some sanification and use a prepared statement or escape the values before putting them in the sql.
That said, the javascript redirection you do looks a bit odd, maybe you can redirect from the php script without asking the client to do so. Look at the header php function for instruction about redirection done server side.

PHP script to download text from site, convert and store it locally

How can I store text from a site to a local file?
So basically the script needs to do the following:
go to this site (fake site)
http://website/webtv/secure?url=http://streamserver.net/channel/channel.m3u8**&TIMESTAMP**
where TIMESTAMP can be a timestamp to make it unique.
the site will respond with:
{
"url":"http://streamserver.net/channel/channel.m3u8?st=8frnWMzvuN209i-JaQ1iXA\u0026e=1451001462",
"alternateUrl":"",
"Ip":"IPADRESS"
}
Grab the url and convert the text as follows:
http://streamserver.net/channel/channel.m3u8?st=8frnWMzvuN209i-JaQ1iXA\u0026e=1451001462
must be:
http://streamserver.net/channel/channel.m3u8?st=8frnWMzvuN209i-JaQ1iXA&e=1451001462
so \u0026e is replaced by &
and store this text in a local m3u8 file.
I am looking for a script either php or any other code is welcome which can perform this. Any help is appreciated.
I tried a small script just to show the contents but then I get the error:
Failed to open stream: HTTP request Failed!
It seems that php tries to open it as a stream instead of a website. It should see it as a site because only then the response is sent.
<?php
$url = 'http://website/webtv/secure?url=http://streamserver.net/channel/channel.m3u8&1';
$output = file_get_contents($url);
echo $output;
?>

This is not a tutorial website, so I am not going to provide you more details. You can try the following code:
<?php
$json_url = "http://linktoyour.site"; //change the url to your needs
$data = file_get_contents($json_url); //Get the content from url
$json = json_decode($data, true); //Decodes string to JSON Object
$data_to_save=$json["url"]; //Change url to whatever key you want value of
$file = 'm3u8.txt'; //Change File name to your desire
file_put_contents($file, $data_to_save); //Writes to File
?>

I think there is issue with your PHP configuration.
It like as allow_url_fopen is denied.
See more http://php.net/manual/en/filesystem.configuration.php#ini.allow-url-fopen

Header location is not working on live server

I Have one registration and payment page. program flow is like registration > confirmation > payment. After validation and calculation in registration page need to go to confirmation page.
My code is
<?php
ob_start();
session_start();
include("header.php");
include("ini.php");
date_default_timezone_set('Asia/Brunei');
header('Cache-Control: max-age=900');
if (isset($_POST['submit'])) {
$error = 0;
//validations
if ($error <= 0) {
//do some calculation
header('location:confirm.php');
}
}
<?php
ob_flush();
?>
Control entered in to if ($error <= 0) clause, but stay on the registration page.
I tried many ways like
header('location:confirm.php', true, 302);
instead of
header('location:confirm.php');
removed
ob_start() and ob_flush()
add exit() after header()
then it goes to blank page.
Also try to use
echo '<script type="text/javascript">';
echo 'window.location.href="confirm.php";';
echo '</script>';
Then the control goes to confirmation page but url seems to be as registration.php
But header('location:confirm.php'); is working fine in my local server. Anybody please help me to resolve this issue.. Is there any alternate way for header(). Looking forward to you guys.. Thanks

Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP. It is a very common error to read code with include, or require, functions, or another file access function, and have spaces or empty lines that are output before header() is called. The same problem exists when using a single PHP/HTML file.
Also try to change header('Location:confirm.php');
(Note L is capital since its work in your local server may be problem with strict php type try this once)

$host = $_SERVER['HTTP_HOST'];
$uri = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
$extra = 'confirm.php';
header("Location: http://$host$uri/$extra");

use ob_end_flush() at the end. This should work like charm.

i had the same issues for years but today i discovered that u don't have to have any html or blank space before the header word .Try it out

How can you embed PHP within a Javascript function?

I am trying to add a CAPTCHA option to a specific page on a website. The validation code for the page is written in Javascript, and the PHP CAPTCHA documentation (http://www.phpcaptcha.org/documentation/quickstart-guide/) is given strictly in PHP. I've managed to add the CAPTCHA box to the page and everything else up until where the code verifies the user's CAPTCHA entry. I am having trouble merging the two because:
a) they are written in different languages
b) my knowledge in PHP/Javascript is very basic
Here is a snippet of the page's original validation code:
function validate(formData, jqForm, options){
// # Valid?
valid = false;
// # Validate Contact Form
var errs = new Array();
// # Contact Name
if($('#ContactName').val() == ''){
errs.push(['#ContactName', 'Enter your name.']);
} else if(label = $('#ContactNameLabel label.error-message')){
label.fadeOut();
}
I want to repeat the same process except with the user's CAPTCHA entry. The following code is given in the PHP CAPTCHA documentation:
include_once $_SERVER['DOCUMENT_ROOT'] . '/securimage/securimage.php';
$securimage = new Securimage();
and
if ($securimage->check($_POST['captcha_code']) == false) {
// the code was incorrect
// you should handle the error so that the form processor doesn't continue
// or you can use the following code if there is no validation or you do not know how
echo "The security code entered was incorrect.<br /><br />";
echo "Please go <a href='javascript:history.go(-1)'>back</a> and try again.";
exit;
}
The code can be found, along with instructions, in the link given above. My question is: how can I implement the given PHP code inside the Javascript function that I have? To my understanding, it is possible to embed PHP inside Javascript as long as the forum is written using PHP (and I can confirm that the website I'm working on is built using CakePHP) - I am just lost with the syntax/how to go about executing this (if it is possible).
If anyone could offer me a helping hand that would be greatly appreciated! Thank you in advance.

You can write PHP within JavaScript if the JavaScript is in the View (as opposed to being in a .js file)
Example:
<?php
$message = "Hello World";
?>
<script>
alert("<?php echo $message; ?>");
</script>

You can't do that as PHP is a server-side language and Javascript is a client-side one. By the time your browser sees the page, all the PHP processing has finished on the server and all that's left is client-side rendering of the page. You will need to validate the CAPTCHA on the server-side.

How do I render javascript from another site, inside a PHP application?

What I'm trying to do is read a specific line from a webpage from inside of my PHP application. This is my experimental setup thus far:
<?php
$url = "http://www.some-web-site.com";
$file_contents = file_get_contents($url);
$findme = 'text to be found';
$pos = strpos($file_contents, $findme);
if ($pos == false) {
echo "The string '$findme' was not found in the string";
} else {
echo "The string '$findme' was found in the string";
echo " and exists at position $pos";
}
?>
The "if" statements contain echo operators for now, this will change to database operators later on, the current setup is to test functionality.
Basically the problem is, with using this method any java on the page is returned as script. What I need is the text that the script is supposed to render inside the browser. Is there any way to do this within PHP?
What I'm ultimately trying to achieve is updating stock from within an ecommerce site via reading the stock level from the site's supplier. The supplier does not use RSS feeds for this.

cURL does not have a javascript parser. as such, if the content you are trying to read is placed in the page via Javascript after initial page render, then it will not be accesible via cURL.

The result of the script is supposed executed and return back to your script.
PHP doesn't support any feature about web browser itself.
I suggest you try to learn about "web crawler" and "webbrowsers" which are included in .NET framework ( not PHP )
so that you can use the exec() command in php to call it.
try to find out the example code of web crawler and web browsers on codeproject.com
hope it works.

You can get the entire web page as a file like this:
function get_data($url)
{
$ch = curl_init();
$timeout = 5;
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
$returned_content = get_data('http://example.com/page.htm');
$my_file = 'file.htm';
$handle = fopen($my_file, 'w') or die('Cannot open file: '.$my_file);
fwrite($handle, $returned_content);
Then I suppose you can use a class such as explained in this link below as a guide to separate the javascript from the html (its in the head tags usually). for linked(imported) .js files you would have to repeat the function for those urls, and also for linked/imported css. You can also grab images if you need to save them as files.
http://www.digeratimarketing.co.uk/2008/12/16/curl-page-scraping-script/