php - Problem accessing the value of the json with a point in its name

I need to access the value of the json that contains a point in its
name.

I would like to access the
"proy_sim.name" field but I do not know
how

{ 
 "prsp_sol":
            [
 {
 "proy_sim.name": "Vehículos",
 "prsp_def.name":
            "TRACTOR" 
 }

            ]

}

Answer

After decoding with
json_decode() you'll realize that there is an additional array
you're not accounting for:

$json = '{
 "prsp_sol": [

            {
 "proy_sim.name": "Vehículos",
 "prsp_def.name":
            "TRACTOR"

 }

            ]
}';

$decoded = json_decode($json, true); // true makes
            it an array
print_r($decoded);

echo
            $decoded['prsp_sol'][0]['proy_sim.name'];
//-----------------------^
            additional nested
            array

The
output:

Array
(

            [prsp_sol] => Array
 (
 [0] => Array
 (

            [proy_sim.name] => Vehículos

 [prsp_def.name] =>
            TRACTOR
 )

            )
)

Vehículos

Here
is an href="http://sandbox.onlinephpfunctions.com/code/03b803e7502618e4debfe5e5d2e941e9cf0de61b"
rel="nofollow
noreferrer">example

The
point in the name is irrelevant.