JSON - PHP foreach persistant error - php

Am quite frustrated with this and could use some savvy minds.
Am building a relatively simple API.
Using PHP have created the stdClass()'s and json_encode.
On the host server the data echos perfectly.
On the client side am getting a persistent foreach invalid argument error.
$thefez= new stdClass();
$thefez->muid=$id;
$thefez->bandname=$bandname;
$thefez->core=new stdClass();
$thefez->core->joined=$since;
$thefez->core->bandbio=$bio;
$thefez->core->genre=$genre;
$thefez->core->subgenre=$subgenre;
echo json_encode($thefez);
The Result (Host)
{"muid":"IM5LGM02MFS8RJLKGY9W","bandname":"Marbles For Zen","core":
{"joined":"Sun 01 March 2015","bandbio":"Zen And Marbles","genre":"Rhythm Blues",
"subgenre":"Dixie Rhythm"}}
{"muid":"IMA3YNBKZQDNR9RBCSRI","bandname":"Frankie Storm","core":
{"joined":"Sat 21 February 2015","bandbio":"Just registered. Bio coming soon.","genre":"Popular","subgenre":""}}
ISSUE:
Using json_decode and foreach simply want to echo the items in the array.
json_decode(file_get_contents('http://api.mutrs.me/?artists'), TRUE);
foreach($result as $item){
$item->muid;
}
Host:
Checked json_last_error it returns 0
Checked json_last_error_msg it returns No Error
Client:
Checked json_last_error it returns 4
Checked json_last_error_msg it returns Syntax Error

jsondecode converts to array not an standard class object
try this
first $result = json_decode($object , true);
then for your item
$varname = $item['muid'];
Test this compared to Your Code:
<?php
$data = '{"muid":"IM5LGM02MFS8RJLKGY9W","bandname":"Marbles For Zen","core":{"joined":"Sun 01 March 2015","bandbio":"Zen And Marbles","genre":"Rhythm Blues","subgenre":"Dixie Rhythm"}}';
var_dump(json_decode($data , true));
?>

Related

php json decode/parsing poloniex API

I am trying to run a php script in terminal to get a organized reply of cryptocurrency data. the full JSON array can be viewed at https://poloniex.com/public?command=returnTicker. The nested array isnt stacked with [] and parsing this format is becoming troublesome.
here is the code i used:
$fgc = json_decode(file_get_contents("https://poloniex.com/public?command=returnTicker"), true);
echo "Last Price: $".$fgc["last"]." Ask: ".$fgc["lowestAsk"]." Bid: ".$fgc["highestBid"];
echo PHP_EOL;
This is the error it gives me:
PHP Notice: Undefined index:
I have a feeling i need to define each coin however im not sure how to parse it.
other code i have tried:
$fgc = json_decode(file_get_contents("https://poloniex.com/public?command=returnTicker"), true);
$data = $fgc["BTC_BCN"];
foreach($data as $details){
echo "".$details["last"]." ".$details["lowestAsk"];
echo " ".$details["highestBid"];
echo PHP_EOL;
}
The error for this code is:
PHP Warning: Illegal string offset
Please help me understand how to parse this format. Thank you.

How to use Nominatim API through PHP to retrieve latitude and longitude?

Below is the code that I am currently using in which I pass an address to the function and the Nominatim API should return a JSON from which I could retrieve the latitude and longitude of the address from.
function geocode($address){
// url encode the address
$address = urlencode($address);
$url = 'http://nominatim.openstreetmap.org/?format=json&addressdetails=1&q={$address}&format=json&limit=1';
// get the json response
$resp_json = file_get_contents($url);
// decode the json
$resp = json_decode($resp_json, true);
// get the important data
$lati = $resp['lat'];
$longi = $resp['lon'];
// put the data in the array
$data_arr = array();
array_push(
$data_arr,
$lati,
$longi
);
return $data_arr;
}
The problem with it is that I always end up with an Internal Server Error. I have checked the Logs and this constantly gets repeated:
[[DATE] America/New_York] PHP Notice: Undefined index: title in [...php] on line [...]
[[DATE] America/New_York] PHP Notice: Undefined variable: area in [...php] on line [...]
What could be the issue here? Is it because of the _ in New_York? I have tried using str_replace to swap that with a + but that doesn't seem to work and the same error is still returned.
Also, the URL works fine since I have tested it out through JavaScript and manually (though {$address} was replaced with an actual address).
Would really appreciate any help with this, thank you!
Edit
This has now been fixed. The problem seems to be with Nominatim not being able to pickup certain values and so returns an error as a result
The errors you have mentioned don't appear to relate to the code you posted given the variables title and area are not present. I can provide some help for the geocode function you posted.
The main issue is that there are single quotes around the $url string - this means that $address is not injected into the string and the requests is for the lat/long of "$address". Using double quotes resolves this issue:
$url = "http://nominatim.openstreetmap.org/?format=json&addressdetails=1&q={$address}&format=json&limit=1";
Secondly, the response contains an array of arrays (if were not for the limit parameter more than one result might be expected). So when fetch the details out of the response, look in $resp[0] rather than just $resp.
// get the important data
$lati = $resp[0]['lat'];
$longi = $resp[0]['lon'];
In full, with some abbreviation of the array building at the end for simplicity:
function geocode($address){
// url encode the address
$address = urlencode($address);
$url = "http://nominatim.openstreetmap.org/?format=json&addressdetails=1&q={$address}&format=json&limit=1";
// get the json response
$resp_json = file_get_contents($url);
// decode the json
$resp = json_decode($resp_json, true);
return array($resp[0]['lat'], $resp[0]['lon']);
}
Once you are happy it works, I'd recommend adding in some error handling for both the http request and decoding/returning of the response.

php - Detect bad request

I have 2 JSON sources and one of them reply 400 Bad request (depend of charge in servers)
So I want that my php code check the answer of both server and select working one
<?php
$server1 = 'server1.lan'
$server2 = 'server2.lan'
/*
Here a code to check and select the working server
*/
$json=file_get_contents('https://'.$workingServer.'/v1/data?source='.$_GET['source']);
$data = json_decode($json);
if (count($data->data)) {
// Cycle through the array
foreach ($data->data as $idx => $data) {
echo "<p>$data->name</p>\n";
?>
Thanks !
Below is an idea of what you may want to implement. Your goal is to get that idea and implement something like that in your own way, with a normal error handling and removal of code duplication:
$json = file_get_contents('https://server1.lan/v1/data');
if ($json === false)
{
$json = file_get_contents('https://server2.lan/v1/data');
if ($json === false)
{
die('Both servers are unavailable');
}
}
file_get_contents returns boolean false on failure, so if the first server is unavailable, call the second. If it is also unavailable, exit the script, or do some sort of error handling that you prefer.
You may want to create an array of possible server names, and use a function that iterates over all of them until it finds a working one, and returns the contents, or throws an exception on failure.
I would also suggest that you use curl, which gives you an option to see the error codes of the request, customize the request itself, and so on.
Check $http_response_header after making the file_get_contents call.
$json = file_get_contents(('https://'.$server1.'/v1/data?source='.$_GET['source']);
if (strpos($http_response_header[0],"400") > 0)
{
$json = file_get_contents(('https://'.$server.'/v1/data?source='.$_GET['source']);
}
See examples at http://php.net/manual/en/reserved.variables.httpresponseheader.php

Pass By Reference to COM Object in PHP

So I'm hoping someone can help and I'm sure this is probably something simple I'm missing. I'm using PHP to access a .net API for a third party software.
Based on the very minimalist documentation on the API I have a working vbsript that connects to the object, performs a login and then does a query which results in the output of the query being dumped to a message box.
Here's the vbscript sample:
'Test device status
Set xxx = CreateObject("The.API.Object.Goes.Here")
'Login
Result = Xxx.LoginToHost("xxx.xxx.xxx.xxx","8989","Administrator","")
if (Result = true) then
MsgBox("OK")
else
MsgBox("Error - " & Xxx.LastError)
WScript.Quit
end if
'Get Status
Result = Xxx.GetDeviceStatus("", out)
if (Result = true) then
MsgBox(out)
else
MsgBox("Error - " & Xxx.LastError)
end if
'Logout
Result = Xxx.Logout()
if (Result = true) then
MsgBox("Logout OK")
else
MsgBox("Error - " & Xxx.LastError)
end if
The Xxx.GetDeviceStatus has two perimeters, the first being a device target or if left blank returns all devices, the second is the string variable to dump the result in.
When the script executes, the second message box contains a list of all devices as I would expect.
In PHP I have:
$obj = new DOTNET("XxxScripting, Version=1.0.XXXX.XXXXXX, Culture=neutral, PublicKeyToken=XXXXXXXXXXXXXXXX","Here.Goes.The.Api");
$obj->LoginToHost('xxx.xxx.xxx.xxx','8989','Administrator','');
$result = $obj->GetDeviceStatus('','out');
echo $result."<br />";
echoing result gives 1 because the value of result is a boolean value and GetDeviceStatus is successful. What I can't figure out is how to get the value of 'out' which is the actual query result.
Any help would be greatly appreciated.
The second parameter of GetDeviceStatus() method call according to the VBScript should pass a variable that will be populated with the output.
However in the PHP example you are just passing the string 'out' which isn't equivalent to what is being done in the VBScript.
Instead try passing a PHP variable to the method and then echoing that variable to screen, like this;
$result = $obj->GetDeviceStatus('', $out);
if ($result)
echo $out."<br />";
After a bit of digging it appears according to the PHP Reference that you need to pass By Reference variables to COM using the VARIANT data type.
Quote from ferozzahid [at] usa [dot] com on PHP - COM Functions
"To pass a parameter by reference to a COM function, you need to pass VARIANT to it. Common data types like integers and strings will not work for it."
With this in mind maybe this will work;
$out = new VARIANT;
$result = $obj->GetDeviceStatus('', $out);
if ($result)
echo $out."<br />";

PHP JSON Google Definitions - accessing a value

EDIT#4: json_decode is failing and returning null on a seemingly valid json string. See below for more info
I am new to JSON/JSONP and I'm running into constant trouble accessing the values in the returned JSON with PHP. I have stripped the JSONP callback without issue using code I found on this board. I am getting a JSONP result from http://www.google.com/dictionary/json?callback=a&sl=en&tl=en&q=love and struggling to access the first result for the meaning. It's a quite complex result, and I need to access the first meaning (in the node "text") from the below JSON result.
http://pastebin.com/hBTeBTUL
My best attempt was:
if (isset($json->primaries[1]->entries[1]->terms[1]->text))
The above was the best I could do, I just keep getting errors trying to return that text node saying it is undefined. I'd prefer to work with objects rather than associative arrays too, if possible, so please avoid telling me to set it to return assoc array.
Any help would be greatly appreciated. I'm really stuck :P
EDIT:
$json->primaries[1]->entries[1]->terms[0]->text didn't seem to work either. Here is the complete script. Ignore the $params array as it is not used, was going to use it to generate the query.
The script has been edited since when I first posted, I had an invalid JSON object, but the error seems to be fixed as it will now parse through JSON formatters.
The error i'm getting trying to print the value out is
PHP Notice: Trying to get property of non-object in /home/outil2/Plugins/GDefine.php on line 23
EDIT#2: added json_decode which was in my original solution, but got lost in the second version
<?php
class GDefine extends Plugin {
public static $enabled = TRUE;
public function onReceivedData($data) {
if ($data["message"][0] == ".def") {
$params = array (
"callback" => "a",
"sl" => "en",
"tl" => "en",
"q" => $data["message"][1]
);
$jsonp = file_get_contents(
"http://www.google.com/dictionary/json?callback=a&sl=en&tl=en&q=" . $data["message"][1]);
$json = json_decode(substr($jsonp, 2, strlen($jsonp)-12));
var_dump($json);
print_r($json->primaries[1]->entries[1]->terms[0]->text);
if (isset($json->primaries[1]->entries[1]->terms[0]->text)) {
$text = $this->bold("Google Definition: ");
$text .= $this->teal($json->primaries[1]->entries[1]->terms[0]->text);
$this->privmsg($data["target"], $text);
} else {
$this->privmsg($data["target"], "error error error");
}
}
}
}
EDIT #3: this is the string I'm trying to json_decode, after using substr to remove the callback function, but am getting a NULL value returned on var_dump($json)
{"query":"love","sourceLanguage":"en","targetLanguage":"en","primaries":[{"type":"headword","terms":[{"type":"text","text":"love","language":"en","labels":[{"text":"Noun","title":"Part-of-speech"}]},{"type":"phonetic","text":"/lÉv/","language":"und"},{"type":"sound","text":"http://www.gstatic.com/dictionary/static/sounds/de/0/love.mp3","language":"und"}],"entries":[{"type":"related","terms":[{"type":"text","text":"loves","language":"und","labels":[{"text":"plural"}]}]},{"type":"meaning","terms":[{"type":"text","text":"An intense feeling of deep affection","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"babies fill parents with intense feelings of \x3cem\x3elove\x3c/em\x3e","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"their \x3cb\x3e\x3cem\x3elove\x3c/em\x3e for\x3c/b\x3e their country","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"A deep romantic or sexual attachment to someone","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"it was \x3cem\x3elove\x3c/em\x3e at first sight","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"they were both \x3cb\x3ein \x3cem\x3elove\x3c/em\x3e with\x3c/b\x3e her","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"we were slowly \x3cb\x3efalling in \x3cem\x3elove\x3c/em\x3e\x3c/b\x3e","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"A personified figure of \x3cem\x3elove\x3c/em\x3e, often represented as Cupid","language":"en"}]},{"type":"meaning","terms":[{"type":"text","text":"A great interest and pleasure in something","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"his \x3cb\x3e\x3cem\x3elove\x3c/em\x3e for\x3c/b\x3e football","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"we share a \x3cb\x3e\x3cem\x3elove\x3c/em\x3e of\x3c/b\x3e music","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"Affectionate greetings conveyed to someone on one\x27s behalf","language":"en"}]},{"type":"meaning","terms":[{"type":"text","text":"A formula for ending an affectionate letter","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"take care, lots of \x3cem\x3elove\x3c/em\x3e, Judy","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"A person or thing that one \x3cem\x3eloves\x3c/em\x3e","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"she was \x3cb\x3ethe \x3cem\x3elove\x3c/em\x3e of his life\x3c/b\x3e","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"their two great \x3cem\x3eloves\x3c/em\x3e are tobacco and whiskey","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"A friendly form of address","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"it\x27s all right, \x3cem\x3elove\x3c/em\x3e","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"Used to express affectionate approval for someone","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"don\x27t fret, there\x27s a \x3cem\x3elove\x3c/em\x3e","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"(in tennis, squash, and some other sports) A score of zero; nil","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"\x3cem\x3elove\x3c/em\x3e fifteen","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"he was down two sets to \x3cem\x3elove\x3c/em\x3e","language":"en"}]}]}]},{"type":"headword","terms":[{"type":"text","text":"love","language":"en","labels":[{"text":"Verb","title":"Part-of-speech"}]},{"type":"phonetic","text":"/lÉv/","language":"und"},{"type":"sound","text":"http://www.gstatic.com/dictionary/static/sounds/de/0/love.mp3","language":"und"}],"entries":[{"type":"related","terms":[{"type":"text","text":"loved","language":"und","labels":[{"text":"past participle"}]},{"type":"text","text":"loves","language":"und","labels":[{"text":"3rd person singular present"}]},{"type":"text","text":"loving","language":"und","labels":[{"text":"present participle"}]},{"type":"text","text":"loved","language":"und","labels":[{"text":"past tense"}]}]},{"type":"meaning","terms":[{"type":"text","text":"Feel a deep romantic or sexual attachment to (someone)","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"do you \x3cem\x3elove\x3c/em\x3e me?","language":"en"}]}]},{"type":"meaning","terms":[{"type":"text","text":"Like very much; find pleasure in","language":"en"}],"entries":[{"type":"example","terms":[{"type":"text","text":"I\x27d \x3cem\x3elove\x3c/em\x3e a cup of tea, thanks","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"I just \x3cem\x3elove\x3c/em\x3e dancing","language":"en"}]},{"type":"example","terms":[{"type":"text","text":"a fun-\x3cem\x3eloving\x3c/em\x3e girl","language":"en"}]}]}]}]}
I json_decode that and it returns NULL :(
You're trying to access an object that doesn't exist. Your code:
if (isset($json->primaries[1]->entries[1]->terms[1]->text)) // Doesn't exist
There's no terms[1] in entries[1] in primaries[1]. There's just 1 item; terms[0]. I think this will work for example:
if (isset($json->primaries[1]->entries[1]->terms[0]->text))
The first item in the array is indexed by 0 not 1, maybe that's your mistake.
Edit:
You also need to decode the JSON, change:
$json = substr($jsonp, 2, strlen($jsonp)-12);
to:
$json = json_decode(substr($jsonp, 2, strlen($jsonp)-12));
Edit:
You need to escape some unescaped characters in the JSON as well. Add this to your code:
Change:
$json = json_decode(substr($jsonp, 2, strlen($jsonp)-12));
to:
$json = substr($jsonp, 2, strlen($jsonp) - 12);
$json = str_replace("\\", "\\\\", $json);
$json = json_decode($json);

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