Question

I have a PHP variable created with json_decode.

The first field of the result has a name that i have stored in the variable.

So how i can access this field by name stored in variable?

I’ve tried:

$json_decoded->{$item}

but it returns null….

Answer 1

$v = "b";
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
$d = json_decode($json);
echo $d->$v;

Another way

$v = "b";
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
$d = json_decode($json,true);
echo $d[$v];