I'm receiving data from an API (asana) when an event was made in my workspace via a POST method in a file called asanatarget.php
The data is correct and i can store it in file when received.
Looks like that:
{"events":"resource":xxx,"user":xxx,"type":"story","action":"added","created_at":"2019-02-20T14:48:09.142Z","parent":xxx}]}
In the same file I send the data to a new file with AJAX with GET method:
asanatarget.php
<?php
if(isset($_SERVER['HTTP_X_HOOK_SECRET'])) {
$h = $_SERVER['HTTP_X_HOOK_SECRET'];
header('X-Hook-Secret:' . $h);
exit;
}
?>
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
</head>
<body>
<?php
$input = file_get_contents('php://input');
if ($input) {
$entries = json_decode(file_get_contents('php://input'), true);
file_put_contents('targetasanaDATA' . time() . '.txt', json_encode($entries));
?>
<script>
$( document ).ready(function() {
$.ajax({
type: "GET",
url: "/asanawebhook", // Working with laravel, the route is well defined
data: <?php echo json_encode($entries); ?>,
dataType: "json",
success: function(response){
console.log("success " + response);
},
error: function(jqXHR, textStatus, errorThrown) { // What to do if we fail
console.log(JSON.stringify(jqXHR));
}
});
});
</script>
<?php
}
?>
</body>
</html>
When i'm directly loading asanatarget.php with test data, it's working fine and the data is passed to /asanawebhook but when the data is passed directly from the api, it's not working.
I checked and the data is always correct
Your PHP script generates only a HTML page (basically, a text).
The javascript can be interpreted and executed by a browser. But if no browser reads this page and execute it, nothing happens. PHP generates a webpage, nobody reads it, and things ends here.
You can use PHP too to send data via POST. You can build your query with http_build_query() and use file_get_contents().
Related
I have a html page with jQuery and I used ajax to send data to the a php file to save the data.
I have seen other questions like this but none of them seemed to match my purpose.
The data is an iframe's srcdoc.
My html looks like this:
<iframe srcdoc="<h1>hello</h1>" id="iframe"></iframe>
<br />
<input type="text" placeholder="Filename to save as..." id="fn">
<input type="button" value="Save" onclick="saveDoc(document.querySelector('#fn').value)">
My jQuery and JS looks like this:
function saveDoc(e) {
let iframe = document.querySelector("#iframe");
let data = {"srcdoc": iframe.srcdoc, "lnk": e};
$.ajax({
type: "POST",
url: "saver.php",
dataType : "text",
contentType: "application/json",
data: data,
cache: false,
timeout: 3000,
success: function (data) {
alert("SUCCESS");
console.log(data);
},
error: function (e) {
alert(e);
}
});
}
And my php code looks like this:
<!doctype html>
<html>
<body>
<?php
if (isset($_POST["lnk"]) && isset($_POST["srcdoc"])) {
$myfile = fopen($_POST["link"], "w");
fwrite($myfile, $_POST["srcdoc"]);
fclose($myfile);
echo $_POST["lnk"];
echo "\n <br/>";
echo $_POST["srcdoc"];
} else {
echo "Error";
}
?>
</body>
</html>
When I run it, I get an alert message saying "SUCCESS". And the console.log gives me:
<!doctype html>
<html>
<body>
Error</body>
</html>
What is happening here, and what am I doing wrong?
contentType: "application/json"
You are explicitly sending this to the server as JSON - so you can not access it via $_POST. (PHP only populates $_POST for Content-Types application/x-www-form-urlencoded or multipart/form-data.)
Either remove contentType, so that it can fall back to the normal way of sending form data, or go read up on how to actually read POSTed JSON data in PHP. (That would involve reading the data from php://input first, see Receive JSON POST with PHP)
I have the following extremely simple PHP tester:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<button id="button">send request</button>
<script>
$("#button").click(function(){
$.ajax({
type: "POST",
url: "ajaxTest.php",
data: {userresponse: "hi"},
success: function(data){
alert(data)
analyse()
}
})
})
var analyse = function () {
<?php
if(isset($_POST["userresponse"])){
$variable = $_POST["userresponse"];
switch($variable){
case "hi":
echo 'alert("' . $variable . '")';
break;
default:
echo 'alert("LOGIC")';
}
}
?>
}
</script>
What's supposed to happen is that when I click the button, it sends the data userresponse: "hi" to the server, and then PHP receives it and alerts the value (i.e. "hi")
However, despite the fact that the file paths are correct, the AJAX send is OK in XHR, the PHP does not receive the value of the data, and the alert(data) returns the entire HTML document.
What is going on and how do I fix this?
Remove analyze() and put your php code in external file called ajaxTest.php, your code works perfect just remove your php code fron analyze and request for external this is bad practice having both in same file(header problems).
Proof:
I have a nginx rewrite rule that redirects an img src attribute to a php page. Within this php page I'm trying make a GET request, which on success makes a POST request to the same page, sending the data returned from the GET request as the data. Why is the $_POST data empty in the php script? If I hardcode $name = "http://path/to/my/img.png" in the php script the image renders correctly.
<?php
ini_set('display_errors',1);
ini_set('display_startup_errors',1);
error_reporting(-1);
var_dump($_REQUEST);
//if(isset($_POST['val'])) {
// open the file in a binary mode
$name = $_POST['val']; // ALWAYS EMPTY
$fp = fopen($name, 'rb');
// send the right headers
header("Content-Type: image/png");
header("Content-Length: " . filesize($name));
// dump the picture and stop the script
//echo fpassthru($fp);
header("Location: $name");
exit;
//}
?>
<html>
<head>
<script type='text/javascript' src='/steal/steal.js'></script>
<script type="text/javascript" src="/plugins/jquery/json2.js"></script>
<script type="text/javascript">
steal('jquery/dom/fixture').then(function(){
$.fixture("GET /event/{code}", function(original, settings, headers){
return [200, "success", { "img_url":"http://path/to/my/img.png" }, {} ]
})
var strObj = <?php echo json_encode($_REQUEST); ?>;
var str = strObj.q;
var eventCode = str.split('/')[1];
$.ajax({
url: "/event/"+eventCode,
success: function(data) {
var imgUrl = data.img_url
$.ajax({
type: 'POST',
contentType: 'json',
data: {val:imgUrl},
success: function(data){
console.log(data);
},
error: function(jqXHR, textStatus, errorThrown){
console.log(textStatus);
}
});
}
});
});
</script>
</head>
<body>
</body>
</html>
Alright, you've taken things a few steps beyond what is possible.
When the user hits this image in their email, a request is sent to your server asking for that image. None of that javascript is going to make it back to the user because the <img> tag is expecting an image, not an html document. You can tack things on to the outgoing request via something like
<img src="http://yourwebsite.com/tracker.php?val=someimage.png">
and your script will be able to get val out of $_GET but you won't be able to make a POST request for this image from inside an email.
All that $_REQUEST data you're getting at the top there? That's where you get all your email tracking data from. Everything you can get out of there and $_GET is all you're getting.
Afterwards, you need to give them back an image. So heres how you do that.
$val = $_GET['val']; // assuming val contains an image
header('Content-Type: image/png');
readfile('/path/to/your/images/'. $val);
Please be super aware that you need to sanity check $val to make sure its only containing images that you want to be able to see. A potentially malicious user could see this and put something like tracker.php?val=/etc/passwd or something similar and then you've got PHP trying to read your password file. Making sure that images exist and can even be read can be done with the is_readable() function.
I am a newbie to php
<?php
getDBData(){
//log the call
$fetchedData = myDbCode.fetchData();
return
}
?>
<script type="text/javascript">
dbData = <?php echo json_encode(getDBData()); ?>
</script>
As observed in the log that getDBData get called only once during the page loading and later on even with dbData = <?php echo json_encode(getDBData()); ?> this code the call to getDBData() doesn't happen.
Any idea why the call to getDBData() happening only on page load and not thenafter
How to call getDBData() from javascript
You don't actually understand, how it works.
Javascript is a client-side language, which means, that it executes in web browser.
PHP is server-side which mean it executes on server.
While handling request, first PHP is executed, that the response is returned to user, and then Javacript executes.
To communicate between client and server you can use ajax requests, which are basically simple http requests but without reloading whole page.
You should use Ajax for that. I.e. you have a php file which returns the output of the function:
// data.php
<?php
function getDBData(){
//log the call
$fetchedData = myDbCode.fetchData();
return $fetchedData;
}
echo getDBData();
?>
// html file
<script type="text/javascript">
var getDBData = function(callback) {
$.ajax({
url: "data.php"
}).done(callback);
}
var dbData = <?php echo json_encode(getDBData()); ?>
getDBData(function(data) {
dbData = data;
})
</script>
The code above uses jQuery.
you can used AJAX for get server side php vaue into javascript variable read this ajax example and implement it.
// Launch AJAX request.
$.ajax(
{
// The link we are accessing.
url: jLink.attr( "href" ),
// The type of request.
type: "get",
// The type of data that is getting returned.
dataType: "html",
error: function(){
ShowStatus( "AJAX - error()" );
// Load the content in to the page.
jContent.html( "<p>Page Not Found!!</p>" );
},
beforeSend: function(){
ShowStatus( "AJAX - beforeSend()" );
},
complete: function(){
ShowStatus( "AJAX - complete()" );
},
success: function( strData ){
ShowStatus( "AJAX - success()" );
// Load the content in to the page.
jContent.html( strData );
}
}
);
// Prevent default click.
return( false );
}
);
You can do it through ajax.
Here is a link here to do it with jquery : using jquery $.ajax to call a PHP function
use jquery
$.ajax({
url: 'yourpage.php',
type: 'POST',
data:'',
success: function(resp) {
// put your response where you want to
}
});
You can't directly call PHP functions from javascript.
You have to "outsource" the getDBDate to an own .php file where you output the json_encoded string and call this file with ajax and get the output of the page.
The easiest to do AJAX requests in javascript is to use the JQuery Library: http://api.jquery.com/jQuery.ajax/
I am trying to build an HTML5 application that heavily leverages JSON for data access. In several instances, I would like to use the getJSON object (using JavaScript and JQuery) to post a JSON object to a PHP page. That PHP page will then grab the JSON object, do some business logic, and then return a separate JSON object to the calling page.
I can get a valid JSON object returned to the calling page, but I can't seem to grab the JSON object that I passed in the original request. I've tried $_GET, $_POST and several other options. All to no avail.
Here is my code on the original page. It is very simple - when a user clicks the button we do an AJAX call that passes a JSON object to the page called receive_jason.php. This page is supposed to evaluate the JSON object passed in and return another JSON object to the original page.
PAGE 1:
<html lang="en">
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
</head>
<script type="text/javascript">
function StartPost()
{
var strJSON = '{"id":"3","artist":"The Beatles","alblum":"White Alblum"}';
var jsonURL = "receive_json.php";
$.getJSON( jsonURL,
strJSON,
function(data) {
var items = [];
responseMsg = data["success"];
alert(responseMsg);
});
}
</script>
<body>
<input type="button" name="Post Data" value="Post Data" onClick="StartPost();">
</body>
</html>
And here is the PHP code on the receive_json.php page...
<?php
$incomingData = $_GET['artist'];
$myText =(string) $incomingData;
echo "{\"success\":\"" . strlen($myText) . "\"}";
?>
Just to be clear, the getJSON call works and I do receive a valid JSON call on the return. But I can't access the JSON object that I am passing in.
My questions....
1) Is this just a simple syntax error that I can fix?
2) Is getJSON even the right function for this task?
3) Is there an easy way for me to debug getJSON requests so I can see what is happening on the page?
$.getJSON sends GET requests.
You need to use $.ajax with method: "POST" and type: "json".
Use something like this:
$.ajax({
url: "yourfile_orserverfile.php",
type: "POST",
data: {
//whatever your data is
}
datatype: "json",
success: function (status) {
if (status.success == false) {
//alert a failure message
} else {
//alert a success message
}
}
});