JAXON - SyntaxError: Unexpected token '<'

[jaxon-php]

JAXON - SyntaxError: Unexpected token '<'

[feuzeu]

You're welcome.
Happy coding with Jaxon!

[feuzeu]

Hi,
I think this error means that the Jaxon javascript library is unable to parse the response your app sent back.
This often happens when the app outputs additional debug data that is added to the Jaxon response.

Try to use the dev tools of your browser to see the response your app sends back.

[lxaraujo]

thank's for your response, but unfortunately the only thing that it shows is the syntax error message. I guessed that was my xdbug that was causing this but I tested in other browser and same thing came up. I am getting frustrated because Xajax is very simple to use and I am trying Jaxon for the same reason but this issue is driving me crazy. I am resourceless. I think the Jaxon website should have more complete examples about how to use this library, not only fragments of code, it seems a very good library. I learned Xajax almost only by examples. If they can provide a complete file whit HTML and PHP from the beginning would be a great help. I will keep diging. thanks again for your attention.

[feuzeu]

Hi,
If the issue comes from your app as I guessed, using a different browser will not change anything.

If you are using Chrome or Firefox on Linux or Windows, press Ctrl-Maj-i to show the dev tools window, then go to the Network tab. You'll see your HTTP requests there. If the tab is empty, reload the page or make a new Jaxon request.

Click on a Jaxon request in the list, and all its details will appear in multiple tabs. The Response tab will show you the raw response sent by your application.
If this response is not json formatted, then it's the cause of your issue.

[feuzeu]

Concerning the examples, look at the repo at https://github.com/jaxon-php/jaxon-examples.
These are not "only fragments of code". They are full working examples you can install and run on your own server.
Only by following the simple instructions in the readme, you'll be able to run all the examples excepted those related to frameworks.

It is the same examples I used in this page: https://www.jaxon-php.org/examples.html.

[lxaraujo]

It is returning a bad formed Json string with a syntax error message. What bothers me is that I can even create the $response variable because when it executes $response = new Response the error happens. I don´t have an application really, I have a function or class (I have 2 different files to test) and only 1 event that is the onclick, with no parameter only the called function. The action that it was supposed to return is an alert(), but the processing never reached that action because it dies when I try to create the $response variable. regarding the examples, when I go to https://github.com/Jaxon/Jaxon/blob/master/examples/helloworld.php it returns a 404 page not found. I have just one php file with a very simple code. But don´t worry, I wil keep my journey diging. As we say here in my country (Brasil) I am a brazilian, I never quit. rsrsrsrs Em qui., 16 de jan. de 2020 às 09:25, Thierry Feuzeu < [email protected]> escreveu:

…

Concerning the examples, look at the repo at https://github.com/jaxon-php/jaxon-examples. These are not "only fragments of code". They are full working examples you can install and run on your own server. Only by following the simple instructions in the readme, you'll be able to run all the examples excepted those related to frameworks. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#65?email_source=notifications&email_token=AOJJBVSSWUPFIC6NNDHXJMDQ6BG43A5CNFSM4KHJVK3KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEJD4LUA#issuecomment-575129040>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOJJBVRHOSL5G62VDSHZYTLQ6BG43ANCNFSM4KHJVK3A> .

[feuzeu]

Hi,
The link is https://github.com/Xajax/Xajax/blob/master/examples/helloworld.php
Make you include the composer autoload file in your own file. It may exmplain why you cannot create a Response object.

[lxaraujo]

Hello,

The Xajax example doesn´t help, I am using it since 2008 and I am very happy with it so I know how to use it.
The composer autoload file is already being loaded because it seems that Jaxon is working. It is creating and injecting the JavaScript parts. I can see inside my file on the debuger that JavaScript is being built and the call to my PHP function from the onclick event is there. The error happen exactly after I click the button. When Jaxon goes to my PHP function and reach $response = new Response the Json that is returned came with the sintax error. The example I need from Jaxon is the kind is shown for Xajax. step by step in the same file, very simple.

[lxaraujo]

this is my code. Can you help seeing it? <?PHP require_once '../vendor/autoload.php'; use Jaxon\Jaxon; use Jaxon\Response\Response; $jaxon = jaxon(); $jaxon->register(Jaxon::CALLABLE_FUNCTION, "show"); function show() { $response = new Response(); $response->assign('div_tab', 'innerHTML', 'texto'); return $response; } ?> <!DOCTYPE html> <html> <head> <meta content="charset=utf-8" /> <title>Title</title> </head> <body style="background-color:#81BEF7 ;"> <form> <table border="1" align="left" bgcolor="#FFCC33" style="border-collapse:collapse"> <tr> <td align="right">&nbsp;<input type="button" value="Say Hello" onclick="<?php echo rq()->call('show') ?>" /></td> </tr> </table> <div id="div_tab"></div> </form> <?PHP echo $jaxon->getScript(true,true); ?> </body> </html> <?PHP if ($jaxon->canProcessRequest()) { $jaxon->processRequest(); } ?> Em sex., 17 de jan. de 2020 às 09:41, Thierry Feuzeu < [email protected]> escreveu:

…

Hi, The link is https://github.com/Xajax/Xahax/blob/master/examples/helloworld.php Make you include the composer autoload file in your own file. It may exmplain why you cannot create a Response object. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#65?email_source=notifications&email_token=AOJJBVTHI6KXFJDXECOCQL3Q6GRRFA5CNFSM4KHJVK3KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEJHR64Y#issuecomment-575610739>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOJJBVUJR6HVVWZ5VWGTHETQ6GRRFANCNFSM4KHJVK3A> .

[feuzeu]

Hi,
Your issue is not due to debug output as I guessed, but to HTML output.

<?PHP
    if ($jaxon->canProcessRequest()) {
        $jaxon->processRequest();
    }
?>

Since you have put the above code after the HTML code, the response to the Jaxon request will always contain the HTML code and the json data.

Try this

<?PHP
require_once '../vendor/autoload.php';

use Jaxon\Jaxon;
use Jaxon\Response\Response;

$jaxon = jaxon();

$jaxon->register(Jaxon::CALLABLE_FUNCTION, "show");


function show()
{
    $response = new Response();
    $response->assign('div_tab', 'innerHTML', 'texto');
    return $response;
}

if ($jaxon->canProcessRequest()) {
    $jaxon->processRequest();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta content="charset=utf-8" />
<title>Title</title>
</head>
<body style="background-color:#81BEF7 ;">
<form>
<table border="1" align="left" bgcolor="#FFCC33"
style="border-collapse:collapse">
   <tr>
       <td align="right">&nbsp;<input type="button" value="Say Hello"
onclick="<?php echo rq()->call('show') ?>" /></td>
    </tr>
  </table>
  <div id="div_tab"></div>
</form>
<?PHP
    echo $jaxon->getScript(true,true);
?>
</body>
</html>

[lxaraujo]

Good morning. You are the best. Now it works very fine. Thank you very much for your help. Now that I know, thank´s to you, the sequence of the expressions I will begin to convert my files from Xajax to Jaxon and now I can jump to PHP 7. Thank´s again. Em sáb., 18 de jan. de 2020 às 13:05, Thierry Feuzeu < [email protected]> escreveu:

…

Hi, Your issue is not due to debug output as I guessed, but to HTML output. <?PHP if ($jaxon->canProcessRequest()) { $jaxon->processRequest(); }?> Since you have put the above code after the HTML code, the response to the Jaxon request will always contain the HTML code and the json data. Try this <?PHPrequire_once '../vendor/autoload.php';use Jaxon\Jaxon;use Jaxon\Response\Response;$jaxon = jaxon();$jaxon->register(Jaxon::CALLABLE_FUNCTION, "show");function show(){ $response = new Response(); $response->assign('div_tab', 'innerHTML', 'texto'); return $response;}if ($jaxon->canProcessRequest()) { $jaxon->processRequest();}?> <!DOCTYPE html> <html> <head> <meta content="charset=utf-8" /> <title>Title</title> </head> <body style="background-color:#81BEF7 ;"> <form> <table border="1" align="left" bgcolor="#FFCC33"style="border-collapse:collapse"> <tr> <td align="right">&nbsp;<input type="button" value="Say Hello"onclick="<?php echo rq()->call('show') ?>" /></td> </tr> </table> <div id="div_tab"></div> </form><?PHP echo $jaxon->getScript(true,true);?> </body> </html> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#65?email_source=notifications&email_token=AOJJBVVTE7BB2B2QMITPI63Q6MSCXA5CNFSM4KHJVK3KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEJJ3VZQ#issuecomment-575912678>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOJJBVWFHGOITLMCJJPM54TQ6MSCXANCNFSM4KHJVK3A> .