JSON returns nothing – Stack Overflow in Spanish

I have the following code which, when I enter a value, returns nothing. I do not know where the mistake lies, I tried everything.

$json=array();



 if(isset($_GET("cat"))){

            $cat=$_GET("cat");

            $conexion = new mysqli($hostname_localhost, $username_localhost, $password_localhost, $database_localhost);
            $consulta='select nombre,descripcion,facebook,horario,direccion,ruta_i,ruta_i6,ruta_i2,ruta_i3,ruta_i4,ruta_i5 from negocio inner join categoria on negocio.cat = categoria.id where cat =' .  $cat;
            $resultado=mysqli_query($conexion,$consulta);

                while($registro=mysqli_fetch_array($resultado)){
                $json('negocio')()=$registro;


            }
            mysqli_close($conexion);
            echo json_encode($json);

 }

If I enter the value 1, I should return the corresponding data, but there is nothing back. If I enter a value that does not z. For example, if 2 equals, an empty array () is returned.

mobile – Treat text overflow in wireframes

That bothered me a lot, how to proceed.

I like to use "ugly data" in my wireframes because my goal is not pretty but functional wireframes. Using simple single-line words is easy and pretty, but not real.

Here are ways to preview longer text before selecting an item:
A list of ways to handle long text in previews
But what if you have a nefarious user who uses Unicode to flood those fields?
Different ways to use Unicode

The first example is the user who uses either one or to create new lines by inaccurately counting a simple character.

The second example is the user who uses a long Unicode character abuse a character counting method.

The third example uses a whitespace rendering character to create an ellipse out of nowhere seemingly.

Not only do you have to measure the width of a piece of text, you also need to make sure that it does not flow vertically. Or clean up entries so that this does not happen at all. However, these precautions are technically not always feasible.

Also, you'll need to see the full text somewhere anyway, and the longer Unicode characters make it ridiculous. As an an example, longer title that ends in an ellipsis is 37 characters, below is an example of a 20 character string. When using line breaks, only 17 characters are required to completely overflow the screen at this font size.

Too long threads

How would you handle all this? Do you scroll over the text at a certain height? What if it's made up of line breaks? Decrease the font size?

I was told that it does not matter because it would be ridiculous for a user to enter such a long text. I do not like this answer as it will arrive and come in, and it should be my job to find the best way to display these marginal cases.

Caching problem for service worker – stack overflow

I use sw-precache-webpack-plugin Plugin with my React application for caching static assets with bundle splitting. I store only static assets (js. css. fonts. images etc) from now on cache falling back to network Strategy. It works fine except for some random scenarios that I can not figure out.

The problem is that the file cached by the service worker is not complete. Even if the browser attempts to access this file when it is being updated, the file is provided by the service representative, who is incomplete. Therefore, my application will never load in this browser unless I manually delete the service worker's cache.

I checked that content-length Header as well, which is far less than the actual one content-length, The browser also has plenty of storage space available.

I'm not getting any direction to move forward. Any help would be appreciated.

My configuration for this plugin is:

   new SWPrecacheWebpackPlugin({
      dontCacheBustUrlsMatching: /.w{8}./,
      filename: 'service-worker.js',
      logger(message) {
        if (message.indexOf('Total precache size is') === 0) {
          // This message occurs for every build and is a bit too noisy.
          return;
        }
        if (message.indexOf('Skipping static resource') === 0) {
          // This message obscures real errors so we ignore it.
          // https://github.com/facebookincubator/create-react-app/issues/2612
          return;
        }
        console.log(message);
      },
      minify: true,
      navigateFallback: publicUrl + '/index.html',
      navigateFallbackWhitelist: (/^(?!/__).*/),
      staticFileGlobsIgnorePatterns: (/.map$/, /asset-manifest.json$/, /index.html$/),
    }),

Matrix with Python stack overflow

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Exploit – Why can not you jump directly from SEH to Payload for SEH buffer overflow?

In my understanding, a typical way to achieve a SEP buffer overflow (ignoring protections such as DEP, SafeSEH, etc.) is to override SEH with POP POP RET, which goes back to nSEH that we control. nSEH is then used to reference our found shell code. Below you can see what the pile will look like.

(BUFFER)(nSEH to payload)(SE handler for POP-POP-RET)(Payload)

My question is, why can not you just override SEH with an opcode to jump x bytes directly to the shellcode?

regex – Install Package – Stack Overflow

Thank you for your contribution to Stack Overflow in Portuguese!

  • Be sure answer the question, Find out in detail about your solution and share your results.

But avoid

  • Ask for clarification or details about other answers.
  • Make statements based solely on your opinion. point to earlier references or experiences.

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