Unable to get url value from json cell - php

I have an api that returns a json where I want to get some data. When I visit the url from the browser I get the following json:
{
"myarray":{
"_id":"12345qwer",
"value":"https://www.awildurl.com/q/12345678/test-1-1234-123.html",
"provider":"foo",
"price":null
}
}
I get the data in php from the server and print with:
$json_content = file_get_contents($jsonurl);
$json_decoded=json_decode($json_content, TRUE);
echo "provider: ".$json_decoded['myarray']['provider']."<br>"; //foo
The problem appears when I try to get and print the url (value), I get a null variable:
echo "value: ".$json_decoded['myarray']['value']."<br>"; //foo
Also when I try to print_r the array right after getting the url in php I get null in the point where the actual url should be:
print_r($json_decoded); //{"myarray":{"_id":"12345qwer","value":null,"provider":"foo"}}
Does anyone know why this happens and how can I get the actual url from the array cell?

Related

PHP function to call JSON files

I am trying to make a basic PHP function in order to call json files repeatedly throughout the app. Every time I want to call a json file I use:
<? $site = json_decode(file_get_contents('views/partials/site.json')); ?>
Then I use echo to use data from json file like this:
<? echo $site[0]->title; ?>
But instead of repeating part one I want to write a function in the header and call it where I want to call a json file. After that i was planning to use the function like this:
$site = jsonCall('site');
by using the function below;
function jsonCall($jsonurl){
// this is one line code. no difference from 3 lines below-> $jsonCalled = json_decode(file_get_contents($homepage . 'views/partials/' . $jsonurl . '.json'));
$url = $homepage . 'views/partials/' . $jsonurl . '.json';
$data = file_get_contents($url); // put the contents of the file into a variable
$jsonCalled = json_decode($data); // decode the JSON feed
echo $jsonCalled;
};
but instead of what i want i got an array as a response from server. i think my function turns json file to an array and that way i can't call it properly.
anyone knows how to solve this simple issue? show me proper way to write this function so my code might look a bit easier to read. Thank you.
by changing echo in function with return and using jsonCall('site')[0]->title; everything worked fine.

Of course you are getting an array. Otherwise $site[0] (which is an array access at key zero) would not have worked.
From the PHP docs (http://php.net/manual/en/function.json-decode.php):
Returns the value encoded in json in appropriate PHP type. Values
true, false and null are returned as TRUE, FALSE and NULL
respectively. NULL is returned if the json cannot be decoded or if the
encoded data is deeper than the recursion limit.
Your appropriate PHP type is array.
The following should work:
jsonCall('site')[0]->title;
Therefore I can not see a problem with your code?

The server is responding with Array because that is how PHP represents an array when you are echo'ing it. Your function should be returning the result.
Try:
function jsonCall($jsonurl){
// this is one line code. no difference from 3 lines below-> $jsonCalled = json_decode(file_get_contents($homepage . 'views/partials/' . $jsonurl . '.json'));
$url = $homepage . 'views/partials/' . $jsonurl . '.json';
$data = file_get_contents($url); // put the contents of the file into a variable
$jsonCalled = json_decode($data); // decode the JSON feed
// echo $jsonCalled;
return $jsonCalled; // <- this should work
};

How to extract an object within a JSON object in PHP and assign it the right index

I have the following PHP code (I'll post the important part of it):
// objID
$objects->objID = generateRandomID();
$objects->pointer = array('type'=>'__pointer','objID'=>'dgFg45dG','className'=>'Users');
$jsonStr = file_get_contents($className.'.json'); // This calls a Users.json file stored in my server
$jsonObjs = json_decode($jsonStr, true);
...
$jsonStr = file_get_contents($className.'.json'); // This calls a Users.json file stored in my server
$jsonObjs = json_decode($jsonStr, true);
array_push($jsonObjs, $objects);
// Encode the array back into a JSON string and save it.
$jsonData = json_encode($jsonObjs);
file_put_contents($className.'.json', $jsonData);
// echo JSON data
echo $jsonData;
// ISSUE HERE :(
$jsonStr = file_get_contents($className.'.json');
// Decode the JSON string into a PHP array.
$jsonObjs = json_decode($jsonStr, true);
foreach($jsonObjs as $i=>$obj) {
print_r('<br><br>'.$i.'-- ');
echo
$obj['objID'].', <br>'
.$obj['pointer']["$i"]['objID']. ', '
.$obj['pointer']["$i"]['type']. ', '
.$obj['pointer']["$i"]['className']. '<br><br>'
;
}
// ./ ISSUE
The code above creates a new JSON object into my own Users.json file.
So, when I call this PHP file with a URL string in my browser, just as a test, and I refresh the page a few times, I get the following echo:
0-- VUDjCZX8QX, , ,
1-- 1uWH17OoJP, , ,
[{"objID":"VUDjCZX8QX","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"mark","createdOn":"2018-09-17 05:36:49","updatedOn":"2018-09-17 05:36:49","number":111,"boolean":true,"array":["john","sarah"]},{"objID":"1uWH17OoJP","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"mark","createdOn":"2018-09-17 05:36:51","updatedOn":"2018-09-17 05:36:51","number":111,"boolean":true,"array":["john","sarah"]},{"objID":"RkubyQPvqR","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"mark","createdOn":"2018-09-17 05:36:54","updatedOn":"2018-09-17 05:36:54","number":111,"boolean":true,"array":["john","sarah"]}]
So, what I need to fix is basically the following:
What's the right code to properly get the list of items of the
"pointer" object that's inside each object of my Users.json file?
I try to track the index of my foreach loop, but it doesn't work properly as you can see by the echo posted above when I first execute my PHP code, I get the JSON string of my 1st object, I don't get any print_r(). Then, when I refresh the page a 2nd time, I get the print of the objID string of my 1st object, and again, if I refresh the page a 3rd time, I get the objID of my 2nd object, while there are 3 objects stored in my json file. And so on, in other words, I never get the first object's print info.
What am I doing wrong?

You are passing $i as a string, not as a variable. Use double quotes (") or remove single quotes (') to pass as a variable. This will solve your issue, pointer objects not printing properly.
$obj['pointer'][$i]['objID']
Update
[{"objID":"VUDjCZX8QX","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"mark","createdOn":"2018-09-17 05:36:49","updatedOn":"2018-09-17 05:36:49","number":111,"boolean":true,"array":["john","sarah"]},{"objID":"1uWH17OoJP","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"mark","createdOn":"2018-09-17 05:36:51","updatedOn":"2018-09-17 05:36:51","number":111,"boolean":true,"array":["john","sarah"]},{"objID":"RkubyQPvqR","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"mark","createdOn":"2018-09-17 05:36:54","updatedOn":"2018-09-17 05:36:54","number":111,"boolean":true,"array":["john","sarah"]}]
According to above JSON string, you don't need specify $i.
$obj['pointer']['objID'] should work, since it is associate array.

Thanks to #saumini-navaratnam, I have to use the following foreach:
foreach($jsonObjs as $i=>$obj) {
print_r('<br><br>'.$i.'-- ');
echo
$obj['objID'].', '
.$obj['pointer']['objID']. ', '
.$obj['pointer']['type']. ', '
.$obj['pointer']['className']. '<br><br>'
;
}
In this way, I can properly get the objects of this object:
{"pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"}
In fact, here's the echo I get:
[
{"objID":"pkO8NesS5S","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"bobby","createdOn":"2018-09-17 07:03:27","updatedOn":"2018-09-17 07:03:27","number":111,"boolean":true,"array":["john","sarah"]},
{"objID":"rdwJl20krC","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"bobby","createdOn":"2018-09-17 07:03:31","updatedOn":"2018-09-17 07:03:31","number":111,"boolean":true,"array":["john","sarah"]},
{"objID":"3WspzmuwMK","pointer":{"type":"__pointer","objID":"dgFg45dG","className":"Users"},"string":"bobby","createdOn":"2018-09-17 07:07:39","updatedOn":"2018-09-17 07:07:39","number":111,"boolean":true,"array":["john","sarah"]}
]
0-- pkO8NesS5S, dgFg45dG, __pointer, Users
1-- rdwJl20krC, dgFg45dG, __pointer, Users
2-- 3WspzmuwMK, dgFg45dG, __pointer, Users

How to get the specific item value from array element from an external url in PHP?

I want to get the value of address from an API output
I send the request to that URL by :
echo $api=" <object data='https://apibtc.com/api/create_address?token=24373243hhhis8aa2f215437b01&callback=https://test.co'></object>";
OutPut is showing as:
{"success":true,"Res":{"Sign":"202e480b32fd6b1ea311381f3cc3a480","Adress":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","Address":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","DateEnd":"2017-10-07 12:26:25"}}
I want to get address value,how can i get?
I try by below method but no response.
echo "address:".$api->success->Sign->Address;

As it is json data you have to decode it in json then you can get data
$json ='{"success":true,"Res":{"Sign":"202e480b32fd6b1ea311381f3cc3a480","Adress":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","Address":"1FJQUXxovyizVvMhjjUMuY1QkScZbS5ipp","DateEnd":"2017-10-07 12:26:25"}}';
$data = json_decode($json);
echo $data->Res->Adress;

Right way of browsing Instagram API result array of images with foreach

I've been recently building a plugin for wordpress which basically uses the instagram API to get an image URL and then place it in a short code.
And I've come to a problem.
I get this error:
E_WARNING : type 2 -- Invalid argument supplied for foreach() -- at
line 22
and I have no idea what am I doing wrong.
My code for the foreach:
//define Access token
$accesst= "ACCESS_TOKEN_GOES_HERE";
//userid
$userid=USERID_GOES_HERE;
//image count to get
$count=20;
//get api contents
$content = file_get_contents('https://api.instagram.com/v1/users/self/media/recent/?access_token='.$accesst.'&count='.$count);
//converting JSON to object
$standardres = json_decode($content, true);
//array method
foreach($standardres['data'][0]['images']['standard_resolution']['url'] as $photo)
{
print $photo['url'][0];
echo "<br>";
}
My JSON var_dump got me this:
https://pastebin.com/3RaL6EUA
The access codes, were of course deleted before posting this.
Does anyone have a clue what I'm doing wrong?
EDIT:
Thanks, everyone, got it figured out in the comments.

Your $standardres['data'] have items which have images, so you must use $standardres['data'] in the foreach loop and then parse the image url from the item data.
foreach($standardres['data'] as $item) {
print $item['images']['standard_resolution']['url'];
echo "<br>";
}

I don't know exactly the hierarchy of the instagram API, but I suggest you to try :
foreach($standardres['data']['images'] as $photo) {
print_r($photo); // to see what the array contains!
echo $photo['standard_resolution']['url'];
echo "<br>";
}

array output of number more than 14 chars

i'm using facebook fql to get some data , these data are in array
when i use json to decode the result it gives me users id in that style
$result = json_decode($result, true);
the result from array is 1.0000148607246E+14
instead of 10000148607246
i know its the same number but when i use that result to get new data from facebook "request back" it gives me error with id
the question now is how to convert 1.0000148607246E+14 to 10000148607246 in php

Add the precision setting on to the top of the PHP tag.
<?php
echo $var=1.0000148607246E+14; //"prints" 1.0000148607246E+14
ini_set('precision', 18); // <------------------ Add this on to the top of your code
echo $var=1.0000148607246E+14; //"prints" 1.0000148607246

number_format(1.0000148607246E+14,0,'','');
You can read more here
Output
100001486072460

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