Im trying to make a simple JSON retriever.
So here is what im trying to do.
When i type for example
Japan. and i post the data to php.
I want it to load the json it has and search arrays for values containing this country Japan
Sending a smaller cut down json array containing only results containing this value back to the page.
The key is Country,
Example json
{
"1": {
"country": "America",
"Name": "Harry",
"Age": "41"
},
"2": {
"country": "America",
"Name": "ben",
"Age": "40"
},
"3": {
"country": "Japan",
"Name": "taka",
"Age": "48"
},
"4": {
"country": "Japan",
"Name": "John",
"Age": "41"
},
"5": {
"country": "America",
"Name": "Ted",
"Age": "41"
},
"6": {
"country": "America",
"Name": "Simon",
"Age": "41"
}
}
var country = $(".country").val();
$.ajax ({
url: json.php,
type: 'POST',
data: {
'find': country,
},
success: function (results) {
console.log(results);
},
fail: function(data) {
console.log( data.responseText );
console.log( 'Request Failed' + data.statusText );
}
})
<input name="country" class="country" type="text" placeholder="type country"></input>
<?php
header('content-type: application/json; charset=utf-8');
header("access-control-allow-origin: *");
$jsonurl = "data.json";
$json = file_get_contents($jsonurl);
$find = $_POST["find"];
$decode = json_decode($json, true);
$results = array_filter($decode[''], function($country) {
return $country['country'] == $find;
});
var_dump($results);
Any help would be appreciated...
Here is the code sample using which you can achieve your requirement.
$my_json = '{
"1": {"country": "America","Name": "Harry","Age": "41"},
"2": {"country": "America","Name": "ben","Age": "40"},
"3": {"country": "Japan","Name": "taka","Age": "48"},
"4": {"country": "Japan","Name": "John","Age": "41"},
"5": {"country": "America","Name": "Ted","Age": "41"},
"6": {"country": "America","Name": "Simon","Age": "41"}
}';
$json_arr = json_decode($my_json);
$item = array();
foreach($j as $k=>$struct) {
if ('Japan' == $struct->country) {
$item[$k] = $struct;
}
}
echo 'Object Array form::';
echo '---------------------------';
print_r(array_values($item));
echo 'Json form::';
echo '---------------------------';
echo json_encode(array_values($item));
Related
How can I concatenate this json to obtain it:
complements = ["XYZ 3, CDE TR, AAA 5", "", "NDP 3, DDD FR"] ?
Each address can contain a set of complements which must be concatenated and separated by a comma.
P.s: I'm using javascript.
P.s2: Complements can be null like in the second group in JSON.
[
{
"postalcode": "1234",
"street": "ABC",
"number": "1",
"complement": [
{
"type": "B",
"name": "XYZ",
"description": "3"
},
{
"type": "C",
"name": "CDE",
"description": "TR"
},
{
"type": "D",
"name": "AAA",
"description": "5"
}
]
},
{
"postalcode": "444",
"street": "No complements",
"number": "5"
},
{
"postalcode": "2222",
"street": "BBB",
"number": "2",
"complement": [
{
"type": "E",
"name": "NDP",
"description": "3"
},
{
"type": "F",
"name": "DDD",
"description": "FR"
}
]
}
];
My code I'm getting this.complementsList.forEach is not a function.
getComplement(addressesResponse){
this.complementsList = JSON.parse(addressesResponse);
this.complementsList.forEach((item) => {
Object.defineProperty(item, 'complements', {
get: function() {
return this.complement.map((c) => `${c.name} ${c.description}`).join(', '); }
})
});
Source: https://salesforce.stackexchange.com/questions/367713/how-to-render-a-json-in-the-same-line-lwc
how i solved it :
arr.map((x)=>x.complement != null? (x.complement.map((y)=>y.name+' '+y.description)+"") :'');
Having a javascript object, you can go through the keys of the object and combine some of them into strings
It will look something like this:
const jsonObject = [{...}, {...}, ...]
const complements = [];
jsonObject.forEach((item) => {
let complement = item['complement'].reduce((result, currObj)
=> result += (currObj.name+' '+currObj.description), "");
complements.push(complement);
});
This is just an example. There are many ways to do it.
I'm currently trying to code an application with javascript. It pulls data from a database and the response I'm getting is something like that:
{
"values":[
{
"name": "Munich",
"location": "Germany",
"native_lang": "German",
},
{
"name": "London",
"location": "England",
"native_lang": "English",
},
{
"name": "Rome",
"location": "Italy",
"native_lang": "Italian",
}
]
}
But I need to have the JSON like that:
[
{
"name": "Munich",
"location": "Germany",
"native_lang": "German",
},
{
"name": "London",
"location": "England",
"native_lang": "English",
},
{
"name": "Rome",
"location": "Italy",
"native_lang": "Italian",
}
]
How can I delete the parent values object in my JSON?
SHORT ANSWER:
Just access the values property like a JavaScript object.
LONG ANSWER:
You didn't post the JavaScript code snippet so it's quite difficult to give you an appropriate answer.
Assuming you have the following code:
const jsonString = getDataFromTheDB()
const jsonObject = JSON.parse(jsonObject) // still has the "values" layer
const values = jsonObject.values // what you want, without the "values" layer
// BONUS: Just in case you want to convert the object back to a JSON string but without the "values" layer
const valuesJSON = JSON.stringify(values, undefined, 2)
Based on this post :
just do this (consider json the variable that contains your json):
var key = "values";
var results = json[key];
delete json[key];
json = results;
console.log(json) will output the following:
[
{
"name": "Munich",
"location": "Germany",
"native_lang": "German",
},
{
"name": "London",
"location": "England",
"native_lang": "English",
},
{
"name": "Rome",
"location": "Italy",
"native_lang": "Italian",
}
]
But you dont even have to do the last 2 steps of the code snippet above, you could also just directly use results variable and have the same output by console.log(results).
You could take the object and create a new variable with just the array.
var vals =
{
"values":[
{
"name": "Munich",
"location": "Germany",
"native_lang": "German",
},
{
"name": "London",
"location": "England",
"native_lang": "English",
},
{
"name": "Rome",
"location": "Italy",
"native_lang": "Italian",
}
]
}
var arr = vals.values;
console.log(arr);
I have a json array like blew :
{
"0": {
"kind": "mammal",
"name": "Pussy the Cat",
"weight": "12kg",
"age": "5"
},
"1": {
"kind": "mammal",
"name": "Roxy the Dog",
"weight": "25kg",
"age": "8"
},
"2": {
"kind": "fish",
"name": "Piranha the Fish",
"weight": "1kg",
"age": "1"
},
"3": {
"kind": "bird",
"name": "Einstein the Parrot",
"weight": "0.5kg",
"age": "4"
}
}
i removed an element 'Piranha the Fish' With (UNSET) My json code changed to blow:
{
"0": {
"kind": "mammal",
"name": "Pussy the Cat",
"weight": "12kg",
"age": "5"
},
"1": {
"kind": "mammal",
"name": "Roxy the Dog",
"weight": "25kg",
"age": "8"
},
"3": {
"kind": "bird",
"name": "Einstein the Parrot",
"weight": "0.5kg",
"age": "4"
}
}
when I remove element the counter of the element change to 0,1,3
so now i can't to have full access in my json elements
I want echo value with this code :
for ($i = 0; $i < $JsonCount - 1; $i++) {
echo "Name :";
echo $json_cod[$i]['name'];
echo "<br/>";
echo "Age :";
echo $json_cod[$i]['age'];
echo "<br/>";
}
out put :
Name :Pussy the Cat
Age :5
Name :Roxy the Dog
Age :8
Try using foreach.
foreach ($json_cod as $item) {
echo "Name :";echo $item['name'];echo "<br/>";
echo "Age :";echo $item['age'];echo "<br/>";
}
If you want to use your code to echo ,after deleting a value from array use $newarray=array_values($oldarray) to reindex the array.
That is because unset() remove the value along with the key/index from the array and left it as it is,i.e it does not rearrange the key/index.
If you want to rearrange key the use array_slice() instead See array_slice. and you will get what you want. You will be able to do
for($i=0; $i <$JsonCount-1 ; $i++)
{
echo "Name :";echo $json_cod[$i]['name'];echo "<br/>";
echo "Age :";echo $json_cod[$i]['age'];echo "<br/>";
}
Here is the file I would like to parse
I receive a file from a webservice in JSON format.
I would like to parse the content in such a way that I display the name of the president from the USA
{
"response": {
"result": {
"Countries": {
"row": [
{
"no": "1",
"FL": [
{
"content": "USA",
"val": "Country"
},
{
"content": "Barack Obama",
"val": "President"
}
]
},
{
"no": "2",
"FL": [
{
"content": "Cuba",
"val": "Country"
},
{
"content": "Raul Castro",
"val": "President"
}
]
}
]
}
}
}
}
The expected output
{ presidents: [
{ "name": "Barack Obama"}
]
}
could you provide a solution using a kind of JSON XPath?
Assuming that you are loading the response into a variable data:
var data = {
"response" : {
"result" : {
"Countries" : {
"row" : [{
"no" : "1",
"FL" : [{
"content" : "USA",
"val" : "Country"
}, {
"content" : "Barack Obama",
"val" : "President"
}
]
}, {
"no" : "2",
"FL" : [{
"content" : "Cuba",
"val" : "Country"
}, {
"content" : "Raul Castro",
"val" : "President"
}
]
}
]
}
}
}
};
You can then filter your data like this:
data.response.result.Countries.row.filter(function (el) {
return (el.FL[0].content == "USA");
})[0].FL[1];
To get to:
{
"content" : "Barack Obama",
"val" : "President"
}
To get the name, simply specify "content"
data.response.result.Countries.row.filter(function(el){
return (el.FL[0].content == "USA");
})[0].FL[1].content;
EDIT 1
One could search a json object like a string.
If we know that the element will have no children, then we could use something like this:
function find(query,obj) {
var str = JSON.stringify(obj);
var start = str.substr(0,str.indexOf(query)).lastIndexOf('{');
var end = str.substr(start,str.length).indexOf('}');
return str.substr(start,end);
}
console.log(find('"content":"USA"',data))
Despite of the age of the question I want to add this answer as reference for future visitors with the same problem:
You can use JSONPath. The page contains a description and an implementation in JavaScript and PHP.
t = {
"response": {
"result": {
"Countries": {
"row": [
{
"no": "1",
"FL": [
{
"content": "USA",
"val": "Country"
},
{
"content": "Barack Obama",
"val": "President"
}
]
},
{
"no": "2",
"FL": [
{
"content": "Cuba",
"val": "Country"
},
{
"content": "Raul Castro",
"val": "President"
}
]
}
]
}
}
}
}
res={};//Here we will store result
for (i in t.response.result.Countries.row) {
// get current country
country = t.response.result.Countries.row[i].FL[0].content;
// get current president
president = t.response.result.Countries.row[i].FL[1].content;
if (country == 'USA') {
res.presidents=[{name:president}];
break;
}
}
I am trying to retrieve and display information about current weather from a JSON object using javascript and a URL request:
http://free.worldweatheronline.com/feed/weather.ashx?q=de39ga&format=json&num_of_days=2&key=ec9c2dc5ba201904120805'
the data from the URL looks like this:
{
"data": {
"current_condition": [
{
"cloudcover": "75",
"humidity": "88",
"observation_time": "03:30 PM",
"precipMM": "2.7",
"pressure": "1008",
"temp_C": "12",
"temp_F": "54",
"visibility": "8",
"weatherCode": "302",
"weatherDesc": [
{
"value": "Moderate rain"
}
],
"weatherIconUrl": [
{
"value": "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0018_cloudy_with_heavy_rain.png"
}
],
"winddir16Point": "SE",
"winddirDegree": "140",
"windspeedKmph": "17",
"windspeedMiles": "11"
}
],
"request": [
{
"query": "DE3",
"type": "Postcode"
}
],
"weather": [
{
"date": "2012-05-09",
"precipMM": "11.8",
"tempMaxC": "13",
"tempMaxF": "56",
"tempMinC": "12",
"tempMinF": "53",
"weatherCode": "266",
"weatherDesc": [
{
"value": "Light drizzle"
}
],
"weatherIconUrl": [
{
"value": "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0017_cloudy_with_light_rain.png"
}
],
"winddir16Point": "SE",
"winddirDegree": "141",
"winddirection": "SE",
"windspeedKmph": "12",
"windspeedMiles": "7"
},
{
"date": "2012-05-10",
"precipMM": "11.1",
"tempMaxC": "18",
"tempMaxF": "64",
"tempMinC": "6",
"tempMinF": "43",
"weatherCode": "353",
"weatherDesc": [
{
"value": "Light rain shower"
}
],
"weatherIconUrl": [
{
"value": "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0009_light_rain_showers.png"
}
],
"winddir16Point": "SSW",
"winddirDegree": "209",
"winddirection": "SSW",
"windspeedKmph": "30",
"windspeedMiles": "19"
}
]
}
}
I have tried a couple of scripts to try and get the data and take bits out to display in a div. The first one looks like this:
$.ajax({
url: "http://free.worldweatheronline.com/feed/weather.ashx?q=de39ga&format=json&num_of_days=2&key=ec9c2dc5ba201904120805"
dataType: 'json',
success: function(data) {
jQuery.each(data, function() {
alert("HELLO");
alert("Current Cloud Cover = " + this.data.current_condition.cloudcover);
alert("Current Humidity = " + this.data.current_condition.humidity);
});
}
});
the second one looks like this:
var postcode = document.getElementById("address").value;
function getWeather(userName, count) {
$.getJSON(
'http://free.worldweatheronline.com/feed/weather.ashx?q' + postcode + '&format=json&num_of_days=2&key=ec9c2dc5ba201904120805',
{},
showWeather,
//'jsonp'
);
}
function showWeather(day) {
var str = '<ul>';
str += '<h2>Tweets from ' + postcode + '</h2>';
var i = 0;
$.each(day, function(index, value) {
if (i == count) return;
var dt = new Date(value.date);
str += '<p>';
str += value.temp_C; //gets "text" from JSON
str += '</p>';
str += '';
str += '';
i++;
});
}
I want to get the weather information from the JSON URL and display some of the information in a div, can anybody explain how to do this is these two scripts dont work.
$.ajax({
url: "http://free.worldweatheronline.com/feed/weather.ashx?q=de39ga&format=json&num_of_days=2&key=ec9c2dc5ba201904120805",
dataType: 'jsonp', // You need to use 'jsonp' here because it is cross domain request
success: function(data) {
$.each(data, function(index, value) {
alert(value.current_condition[0].cloudcover);
alert(value.current_condition[0].humidity);
alert(value.current_condition[0].weatherDesc[0].value);
alert(value.request[0].query);
alert(value.request[0].query);
$.each(value.weather, function(i, val) {
alert(val.precipMM);
alert(val.weatherDesc[0].value);
})
});
}
});
DEMO
There are a few problems... the following should work (modification of the first block of code).
$.ajax({
url: "http://free.worldweatheronline.com/feed/weather.ashx?q=de39ga&format=json&num_of_days=2&key=ec9c2dc5ba201904120805&callback=?",
dataType: 'jsonp',
success: function(data){
jQuery.each(data, function(){
alert(JSON.stringify(this));
alert("Current Cloud Cover = " + this.current_condition[0].cloudcover);
alert("Current Humidity = " + this.current_condition[0].humidity);
});
}
});
To recap:
You need to use JsonP to circumvent cross-site-scripting restrictions (do that by adding "&callback=?" to the AJAX URL.
The root of the JSON response is data, so you need to write data.data.
The current_condition property is an array-- have to add an indexer (ie, [0]) to access it.