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  1. #1
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    Default PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24



    Prior to

    Code:
          echo json_encode ($result);exit();
    should there be something like

    Code:
          $result = htmlentities((string)$result, ENT_QUOTES, 'utf-8', FALSE);
    That Software Guy. My Store: Zen Cart Modifications
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  2. #2
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    Can you describe the steps you took to trigger the error message?
    .

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  3. #3
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    Checkout by credit card (Paypal Express) with this item - the checkout confirmation page is blank in the center column, but the remainder of the page including the footer do render.

    The fix I suggested above seems to resolve this issue.
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  4. #4
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    Similar issue identified at: https://www.zen-cart.com/showthread....ment-with-V154

    The direction of this thread appeared to resolve the issue.
    ZC Installation/Maintenance Support <- Site
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  5. #5
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    FWIW, this change breaks one of my commercial plugins. That plugin returns an array of information to an AJAX request and the suggestion of simply casting the result to a string wrecks havoc!

    Here's the change that I made, allowing the return values to be string-value-containing-names or array elements:
    Code:
    <?php
    /**
     * ajax front controller
     *
     * @package core
     * @copyright Copyright 2003-2015 Zen Cart Development Team
     * @copyright Portions Copyright 2003 osCommerce
     * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
     * @version GIT: $Id: Author: Ian Wilson   Modified in v1.6.0 $
     */
    require ('includes/application_top.php');
    
    //-bof-lat9  *** 1 of 2 ***
    function htmlentities_mixed ($mixed_value, $flags, $encoding = 'utf-8', $double_encode = true) {
      if (!is_array ($mixed_value)) {
        $result = htmlentities ((string)$mixed_value, $flags, $encoding, $double_encode);
        
      } else {
        $result = array ();
        foreach ($mixed_value as $key => $value) {
          $result[$key] = htmlentities_mixed ($value, $flags, $encoding, $double_encode);
    
        }
      }
      return $result;
      
    }
    //-eof-lat9  *** 1 of 2 ***
    
    $language_page_directory = DIR_WS_LANGUAGES.$_SESSION['language'].'/';
    if (isset ($_GET['act'])&&isset ($_GET['method'])) {
      $className = 'zc'.ucfirst ($_GET['act']);
      $classFile = $className.'.php';
      if (file_exists (DIR_FS_CATALOG.DIR_WS_CLASSES.'ajax/'.$classFile)) {
        require (DIR_FS_CATALOG.DIR_WS_CLASSES.'ajax/'.$classFile);
        $class = new $className ();
        if (method_exists ($class, $_GET['method'])) {
          $result = call_user_func (array(
              $class,
              $_GET['method']
          ));
          
    //-bof-lat9  *** 2 of 2 ***
          $result = htmlentities_mixed ($result, ENT_QUOTES, 'utf-8', FALSE);
    //-eof-lat9  *** 2 of 2 ***
    
          echo json_encode ($result);exit();
        } else {
          echo 'method error';
        }
      }
    }

  6. #6
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    Quote Originally Posted by lat9 View Post
    FWIW, this change breaks one of my commercial plugins....
    What is the name of the plugin (so folks who are searching will come to this thread)?
    That Software Guy. My Store: Zen Cart Modifications
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  7. #7
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    That plugin's name is Products Options Stock Manager (POSM).

  8. #8
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    Proposed code change slated for v160: https://github.com/zencart/zencart/pull/613
    For v1.5.x the code by lat9 should be fine, and only involves touching 1 file.
    .

    Zen Cart - putting the dream of business ownership within reach of anyone!
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    Remember: Any code suggestions you see here are merely suggestions. You assume full responsibility for your use of any such suggestions, including any impact ANY alterations you make to your site may have on your PCI compliance.
    Furthermore, any advice you see here about PCI matters is merely an opinion, and should not be relied upon as "official". Official PCI information should be obtained from the PCI Security Council directly or from one of their authorized Assessors.

  9. #9
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    Thanks, DrByte!

  10. #10
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    Default Re: PHP Warning: Invalid UTF-8 sequence in argument in /ajax.php on line 24

    I'm investigating reports of the previously-proposed "fix" being an incomplete, and potentially buggy, approach.

    To that end, I'm looking for any information any of you can provide to help me trigger the exact same symptoms with PayPal Pro on v154. Basically looking for details on how to set up a test site with settings to match yours in a way that I can trigger the symptoms ... so I can ensure we come up with as complete a fix as possible.

    Feedback welcome ;)
    .

    Zen Cart - putting the dream of business ownership within reach of anyone!
    Donate to: DrByte directly or to the Zen Cart team as a whole

    Remember: Any code suggestions you see here are merely suggestions. You assume full responsibility for your use of any such suggestions, including any impact ANY alterations you make to your site may have on your PCI compliance.
    Furthermore, any advice you see here about PCI matters is merely an opinion, and should not be relied upon as "official". Official PCI information should be obtained from the PCI Security Council directly or from one of their authorized Assessors.

 

 

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