PHP: get data from json array without loop

Question

I have data i want to get from array without loop.

I want to get "value" of "link_click" for example, how can i make this work?

I tried: but this not working.

$stats = json_decode($data, false);
$link_click= $stats->data->actions->action_type->['link_click']->value;


{
   "data": [
      {
         "actions": [
            {
               "action_type": "comment",
               "value": 2
            },
            {
               "action_type": "link_click",
               "value": 636
            },
            {
               "action_type": "post_like",
               "value": 2
            },
            {
               "action_type": "page_engagement",
               "value": 640
            },
            {
               "action_type": "post_engagement",
               "value": 640
            }
         ],

This sounds a lot like a homework assignment. Please post what you have tried. This is not a code generation site! — nLee
– nLee, Commented Aug 12, 2015 at 16:47
Since all your action entries have the action_type, you will need to loop over them and add a conditional to check against its value being "link_click". Better question: Why is looping not an option in this case? — Mario Wenig
– Mario Wenig, Commented Aug 12, 2015 at 16:48
@nLee, this code come from facebook api i tried to get the data using: '$link_click= $stats->data->actions->action_type->['link_click']->value;' — user2413244
– user2413244, Commented Aug 12, 2015 at 16:48

score 2 · Accepted Answer · 2015-08-12 17:04:31Z

2

The only way you can make it possible only if you know the index of the action_type:link_click. If you know the index, you can do it by. (Answer is with respect to the data you have shown above).

$stats = json_decode($data, true);
$link_click= $stats['data']['actions'][1]['value'];

Loop example (on request):

$stats = json_decode($data, true);
$value = 0;
foreach($stats['data']['actions'] as $action) {
    if ($action->action_type == 'link_click') {
        $value = $action->value;
    }    
}

echo $value; //This is your value

edited Aug 12, 2015 at 17:04

answered Aug 12, 2015 at 16:51

user5220291

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2 Comments

user2413244 Over a year ago

HI, can you give me also loop example? Thanks.

Mario Wenig Over a year ago

Will work, IF and ONLY IF resulting json data doesn't change. Careful trusting external data without doing your own validation on what data you are expecting.

Diego Fu · Accepted Answer · 2015-08-12 16:59:43Z

0

You can use something like JsonPath to get the value

answered Aug 12, 2015 at 16:59

Diego Fu

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