encode javascript array in php?

Question

I tried to encode javascript array in php but doesn't work... i don't understand where is the problem:

This is my javascript code

var reports = [
               ["grup",24.5,101.6,"680 C.","680 C.",0,"N"],
               ["vul-Aca",4.501,-9.876,"192 C.","192 C.",0,"N"]
              ];

and i tried to encode in this way:

$file= "jsfolder/array.js"; //here there is only that js array
$file_contents = file_get_contents($file);
$json_string_array = substr($file_contents,strpos($file_contents,'['),-1);
$array_php = json_decode($json_string_array);

but i think that is a mistake :(

thank a lot and sorry for my english

Answer 1

You have to get rid of semicolon from the end of the string too.

php > var_dump(json_decode("[];"));
NULL
php > var_dump(json_decode("[]"));
array(0) {}

Answer 2

PHP has extension to run javascript code in php.

install V8JS extension in php. Thereafter you can do what you are trying. Get the contents from the file.

$file= "jsfolder/array.js"; //here there is only that js array
$file_contents = file_get_contents($file);

V8JS::executestring method then executes the string provided as javascript code. This will return an array as defined in php, and then you can continue operations in php