{"dDsdE4AlB7P5YYd4fWbYTQKCLPh1":{"email":"abhi@gmail.com","name":"abhishek"},
 "z1ceiLhdh9YVu7lGnVvqDWoWHFH3":{"email":"ravi@gmail.com","name":"ravish"},
 "ghg76JHG8jhkj7GHGJ763kjhFF45":{"email":"John@gmail.com","name":"John"}}

$url = 'https://xxxx.firebaseio.com/users.json'; // path to JSON file
$data = file_get_contents($url); // put the contents of the file into a variable
$characters = json_decode($data); // decode the JSON feed

echo $characters->dDsdE4AlB7P5YYd4fWbYTQKCLPh1->name;