I am very basic new php learner, i having difficulty to get nested array value, here is my json result:
stdClass Object
(
[title] => Aao Raja - Gabbar Is Back | Chitrangada Singh
[link] => stdClass Object
(
[22] => Array
(
[0] => http://r8---sn-aigllnsk.c.docs.google.com/videoplayback?mime=video%2Fmp4&id=o-AExJcTxRDvCYsfgA1cIvQDs1v-pvLhKjTPdDh67X19vz&dur=145.542&itag=22&pl=48&ip=2a03:b0c0:1:d0::2f6:c001&sparams=dur,expire,id,ip,ipbits,itag,lmt,mime,mm,mn,ms,mv,nh,pl,ratebypass,source,upn&key=cms1&sver=3&expire=1437035009&upn=9lTw9Popb18&ratebypass=yes&source=youtube&lmt=1432539432699196&fexp=901816%2C9407809%2C9408142%2C9408420%2C9408710%2C9409172%2C9412774%2C9412846%2C9413149%2C9415664%2C9415958%2C9416126%2C9416370%2C9416656&ipbits=0&signature=3547894526817B37774A7838F8B68493CDD62101.3F143C74D76E8705800445A4CD4476C4F8BCD988&cms_redirect=yes&mm=31&mn=sn-aigllnsk&ms=au&mt=1437013301&mv=m&nh=IgpwcjAzLmxocjE0KgkxMjcuMC4wLjE&utmg=ytap1
[1] =>
[2] => hd720
)
[43] => Array
(
[0] => http://r8---sn-aigllnsk.c.docs.google.com/videoplayback?mime=video%2Fwebm&id=o-AExJcTxRDvCYsfgA1cIvQDs1v-pvLhKjTPdDh67X19vz&dur=0.000&itag=43&pl=48&ip=2a03:b0c0:1:d0::2f6:c001&sparams=dur,expire,id,ip,ipbits,itag,lmt,mime,mm,mn,ms,mv,nh,pl,ratebypass,source,upn&key=cms1&sver=3&expire=1437035009&upn=9lTw9Popb18&ratebypass=yes&source=youtube&lmt=1428933984759484&fexp=901816%2C9407809%2C9408142%2C9408420%2C9408710%2C9409172%2C9412774%2C9412846%2C9413149%2C9415664%2C9415958%2C9416126%2C9416370%2C9416656&ipbits=0&signature=266C126464ECDB4CC0FF076CD41F07BCC4DA7E34.08D9F13B7BF7D92FD1E1963336CC7FB8F19FE899&cms_redirect=yes&mm=31&mn=sn-aigllnsk&ms=au&mt=1437013301&mv=m&nh=IgpwcjAzLmxocjE0KgkxMjcuMC4wLjE&utmg=ytap1
[1] =>
[2] => medium
)
I can access the Title, but can't access the Link urls:
echo $title = $json->{'title'};
echo $link = $json->{'link'}->{'22'}->{'0'};
How can access the specific link array 22
This echo $title = $json->{'title'}; works because you are accessing an object's property and using -> is the correct way.
In this case $json->{'link'}->{'22'}->{'0'} you are trying to access an array item instead an object's property, because $json->{'link'}->{'22'} is an array and not an object. In this case, you should access it in this way: $json->{'link'}->{'22'}[0]. In order to avoid this kind of issues and, when you decode your JSON to a PHP object, you can pass true as a second parameter to the function json_decode and that will convert the whole object into an array. That way, you don't need to worry about accessing elements as object's attributes, you can access them, always, as array items. So, in this case, it would be: $json["link"]["22"][0].
You're confusing the way you access objects and arrays.
Getting the title is correct via $json->title, but the link should be $json->link->{'22'}[0] - a mixture of objects and arrays.
FYI the {'name'} notation is the same as name - only required when you are including variables in your object name e.g. {$someVar . 'name'}
I suppose you use json_decode() function. Do you know that you can get an array instead of StdClass Object? So, you can use.
<?php
$php_array = json_decode($json_string, true);
Related
I can't extract data from json that I got from an api.
I tried for hours, tried all kinds of formats. Read Stackoverflow threads like How do I extract data from JSON with PHP?, but I can't see what I am doing wrong.
This is the code so far:
$api_results = '{"status":"0000","data":{"opening_price":"6998000","closing_price":"7270000","min_price":"6750000","max_price":"7997000","average_price":"7188302.5804","units_traded":"78484.9241002","volume_1day":"78484.9241002","volume_7day":"335611.84181738","buy_price":"7268000","sell_price":"7274000","date":"1510563513031"}}';
$results = json_decode($api_results, true);
// Some variations I tried:
var_dump($results->status[1]);
var_dump($results->data[1]->opening_price);
var_dump($results["data"][1]["opening_price"]);
End result: NULL NULL NULL
What am I doing wrong?
Thanks for the answers! I will upvote the working ones. Seems I got confused in the formating!
<?php
$api_results = '{"status":"0000","data":{"opening_price":"6998000","closing_price":"7270000","min_price":"6750000","max_price":"7997000","average_price":"7188302.5804","units_traded":"78484.9241002","volume_1day":"78484.9241002","volume_7day":"335611.84181738","buy_price":"7268000","sell_price":"7274000","date":"1510563513031"}}';
$results = json_decode($api_results, true);
print_r($results['status']);
echo "</br>";
print_r($results['data']['opening_price']);
Try access your array that way.
The output is :
0000
6998000
Keep an eye for the nested arrays. You need to access their parent array first in order to get their values.
Have you read the documentation of json_decode() (or, at least, the accepted answer of the question you linked)? If you pass TRUE as the second argument to json_decode() (and there is no decent reason to not pass it) then it decodes the JSON to associative arrays and not objects.
The elements in a PHP array can be accessed using the square bracket syntax.
A simple call to print_r($results) tells its structure:
Array
(
[status] => 0000
[data] => Array
(
[opening_price] => 6998000
[closing_price] => 7270000
[min_price] => 6750000
[max_price] => 7997000
[average_price] => 7188302.5804
[units_traded] => 78484.9241002
[volume_1day] => 78484.9241002
[volume_7day] => 335611.84181738
[buy_price] => 7268000
[sell_price] => 7274000
[date] => 1510563513031
)
)
Now, accessing its items is a piece of cake:
echo($results['status']);
# 0000
echo($results['data']['opening_price']);
# 6998000
Remove true from json_decode so you will have object result like Demo
$results = json_decode($api_results);
var_dump($results->status);
var_dump($results->data->opening_price);
When you use json_decode with true the returned objects will be converted into associative arrays.
Use this code like i think work it fine..
<?php
$api_results = '{"status":"0000","data":{"opening_price":"6998000","closing_price":"7270000","min_price":"6750000","max_price":"7997000","average_price":"7188302.5804","units_traded":"78484.9241002","volume_1day":"78484.9241002","volume_7day":"335611.84181738","buy_price":"7268000","sell_price":"7274000","date":"1510563513031"}}';
$results = json_decode($api_results);
print_r($results);
var_dump($results->status);
$var = $results->data;
var_dump($var->opening_price);
?>
stdClass Object
(
[status] => 0000
[data] => stdClass Object
(
[opening_price] => 6998000
[closing_price] => 7270000
[min_price] => 6750000
[max_price] => 7997000
[average_price] => 7188302.5804
[units_traded] => 78484.9241002
[volume_1day] => 78484.9241002
[volume_7day] => 335611.84181738
[buy_price] => 7268000
[sell_price] => 7274000
[date] => 1510563513031
)
)
string(4) "0000"
string(7) "6998000"
Remove true from json_decode and try something like this:
var_dump($results->status);
var_dump($results->data->opening_price);
If you see {} it is refering to objects and [] indicates that it is an array. You're trying to show everything as if they were arrays
You have set the second parameter of json_decode() to true. that means the json will be converted to an array so you are not able to access the data using pointer -> (because it is not an object).
You may access the data like this:
var_dump($results['status'][0]);
var_dump($results['data'][0]['opening_price']);
P.S: Try var_dump($results) to see the exact data, so you know how to access each attribute.
I am working on a project to get the names of an array.
The arrays seem to be multidimensional, with the added bonus of being a stdclass Object. I am trying to select a key from the provided array but seem to have no luck selecting them.
echo($response->array[shoecompany]->array[1]->name);
from the information here
stdClass Object
(
[shoe] => shoemaker
[shoecompany] => Array
(
[0] => stdClass Object
(
[shoenumber] => 1
[name] => Blank
[1] => stdClass Object
(
[shoenumber] => 2
[name] => demo
)
[2] => stdClass Object
(
[shoenumber] => certificate
[name] => certofsale
)
)
)
Nothing i do seems to pull the information i need out of this. Any ways to go about pulling, said information.
The arrays seem to be multidimensional, with the added bonus of being a stdclass Object.
Arrays and objects aren't the same things.
I let you learn more about the specifics of both if you are curious.
Regarding access, yous use brackets - '[]' - when you want to access something in an array and an arrow - '->' - when you want to access an object's property :
$array['key'];
$object->property;
In your case, since only $response and the entries in the entry showcompany - I assume it's a typo - are objects, what you should write is :
$response->shoecompany[1]->name;
Which gives you in practical use :
foreach ($response->shoecompany as $val) {
echo $val->shoenumber, ' : ', $val->name, '<br>'; // Or whatever you want to print, that's for the sake of providing an example
}
If it is more convenient for you to handle exclusively arrays, you can also use get_object_vars() to convert an object properties to an array :
$response = get_object_vars($response);
Code should be like:
echo $response->shoecomapny[1]->name;
In short, to select key inside an object you need to use "->" operator and to select key inside array use "[]".
I sometimes encounter and object like this:
stdClass Object
(
[batchcomplete] =>
[query] => stdClass Object
(
[pages] => stdClass Object
(
[48548] => stdClass Object
(
[pageid] => 48548
[ns] => 0
[title] => Dopamine
That object key 48548 is gonna be different every time so I have no way of knowing what its value is. Lets say I need to get the title (Dopamine) in this object, I would need to do something like this:
$title = $object->query->page->{*WILDCARD*}->title;
But I haven't figured out a way to do this yet. Is there a way to skip an object key like this without having to find out the value of the key?
A numeric object property is not going to work. Assuming there is only one, convert to an array and get the key:
$array = (array)$object->query->pages;
$title = $array[key($array)]->title;
Or just get the one element:
$title = current((array)$object->query->pages)->title;
If this is coming from JSON you might want to decode it as an array in the first place. If not, then maybe this:
$array = json_decode(json_encode($oject), true);
For non-numeric properties this should work:
$var = key(get_object_vars($object->query->pages));
$title = $object->query->pages->$var->title;
I am using $this->db->get_where() to get data from database in codeigniter.
Its returning following which I got using print_r()
Its looks like array of stdClass object. Anyone who how to access values inside this array.
Array ( [0] =>
stdClass Object (
[id] => 1
[password321] => qwerty
[email123] => example#gmail.com
[username123] => xyz
)
)
It shows an array of objects. There is only one object in it.
If:
$var = $this->db->get_where();
Then:
echo $var[0]->id;
Access it like any other object.
echo $array[0]->id //1
echo $array[0]->username123 //xyz
And so on. If you have multiple objects inside the array, run it through a for loop to iterate the array.
For example:
for ($i=0;$i<sizeof($array);$i++) {
echo $array[$i]->[object property];
}
I have an array called $results, when I use function:
print_r($results);
I get the following.
Array
(
[0] => ProfileElement Object
(
[name] => John thomson
[email] => johnt#gmail.com
[Bio] => 20 years of engineering expertise
[url] => http://twitter.com
)
)
My goal is to echo [name] [email] [Bio] [url] values separately. But when I write the following code in php I don't get any values?
echo $results[0]["ProfileElement Objects"]["Bio"];
Does anyone know why? Isn't this an array inside an array?
It appears that the array element contains an object, not another array. To access the object property, use the -> operator:
echo $results[0]->Bio;
You were close.
echo $results[0]->bio;
Is probably what you want. $result[0] is an object.
Also, depending on visibility, you may need to use a getter method.
remove ["ProfileElement Objects"]
echo $results[0]->Bio;
Try doing:
$results[0]->name;
ProfileElement Object is the object type.
It's an object inside an array. It looks like you should be able to access it as $results[0]->name, $results[0]->email, etc.
It is an object. You can get the 'Bio' value using:
echo $results[0]->Bio;