JsonHelper 

\nn\t3::JsonHelper() 

The script helps to convert and parse JavaScript object strings into an array.

$data = \Nng\Nnhelpers\Helpers\JsonHelper::decode( "{title:'Test', cat:[2,3,4]}" );
print_r($data);

The helper makes it possible to use the JavaScript object notation in TypoScript and to convert it into an array via the {nnt3:parse.json()} ViewHelper. This is practical if, for example, slider configurations or other JavaScript objects are to be defined in TypoScript in order to use them later in JavaScript.

Another application example: You want to use the "normal" JS syntax in a .json file instead of the JSON syntax. Let's take a look at an example. This text was written in a text file and is to be parsed via PHP:

// Contents of a text file.
{
    example: ['one', 'two', 'three']
}

PHP would report an error in this example with json_decode(): The string contains comments, wrapping and the keys and values are not enclosed in double quotes. However, the JsonHelper or the ViewHelper $jsonHelper->decode() can easily convert it.

This is how you could define a JS object in the TypoScript setup:

// Content in the TS setup
my_conf.data (
  {
     dots: true,
     sizes: [1, 2, 3]
  }
)

The mixture is a little confusing: my_conf.data (...) opens a section in the TypoScript for multi-line code. There is then a "normal" JavaScript object between the (...) This can then simply be used as an array in the Fluid template:

{nnt3:ts.setup(path:'my_conf.data')->f:variable(name:'myConfig')}
{myConfig->nnt3:parse.json()->f:debug()}

Or attach it to an element as a data attribute to parse it later via JavaScript:

{nnt3:ts.setup(path:'my_conf.data')->f:variable(name:'myConfig')}
...

This script is mainly based on the work of https://bit.ly/3eZuNu2 and has been optimized by us for PHP 7+.all credit and glory please in this direction.

$data = \Nng\Nnhelpers\Helpers\JsonHelper::decode( "{title:'Test', cat:[2,3,4]}" );
print_r($data);

\Nng\Nnhelpers\Helpers\JsonHelper::encode(['a'=>1, 'b'=>2]);

\Nng\Nnhelpers\Helpers\JsonHelper::removeCommentsAndDecode( "// Comment\n{title:'Test', cat:[2,3,4]}" )