Multiple JSON data - php

Question

I checked every stack overflow solution for it. On ajax request PHP return JSON data but it has multiple JSON data.
var json = '[{"key":"amazon"},{"key":"a a"},{"key":"a and w"},{"key":"a aa"},{"key":"a and e"},{"key":"a aa movie"},{"key":"a aa songs"},{"key":"a aa telugu movie"},{"key":"a aa full movie"},{"key":"a and f"}][{"key":"a beautiful mind"},{"key":"a boogie"},{"key":"a bigger splash"},{"key":"a bronx tale"},{"key":"a brief history of time"},{"key":"a bola"},{"key":"a bugs life"},{"key":"a bientot"},{"key":"a bathing ape"},{"key":"a beautiful mess"}]';
console.log(JSON.parse(json));
$.each(JSON.parse(json), function(idx, obj) {
console.log(obj.key);
});
in var JSON there are two sets one [] and second [] which is causing problems to iterate. If it has only one set [] then it works fine.
PHP Code:
foreach($str as $key => $keyword){
$finalData[$key]['key'] = $keyword;
}
print_r(json_encode($finalData));
Note: It may return data with more than 100 of [], but in above example I just mention two.
Kindly help me out.

Answer 1

What you are trying to create is invalid JSON.
Please wrap your two [] with another [] and comma between both []. Refer code below.
//Sample Code and data
var json = '[[{"key":"amazon"},{"key1":"amazon1"}],[{"key":"amazon"},{"key1":"amazon1"}]]';
console.log(JSON.parse(json));
If more help needed, I'm happy to help.
Thanx, Happy Coding.