Iterating through array in PHP for Yahoo API

Iterating through array in PHP for Yahoo API - php

Thats because the array contains a new Array of answers called ['Answers']. So if you want to print each answer you get, you will have to do the following:
try
{
$answers = $yn->get_question(array('question_id'=>$question['id']));
//print out what you would like...All fields are location on this site http://developer.yahoo.com/answers/V1/getQuestion.html
foreach($answers['Answers'] as $answer)
{
print_r($answer['Content']);
echo "<hr>";
}
}
catch (Exception $e)
{
echo($e->getMessage());
}
E: When you dump an array with print_r() or var_dump(), alsways wrap up the result in pretags so you can easily see what's nested inside an new array etc.
echo "<pre>";
print_r($answers);
echo "</pre>";

Related

Echo arrays in foreach loop codeigniter

foreach($tag_genre as $key => $value){
foreach($value as $values){
echo '<pre>';
echo $values['tag_name'];
}
}
this will format your array in a way you can read it and understand it.

Extract data from Array/Object in PHP?

First off, I'm new to PHP and coding in general, so this might be quite an obvious answer.
I'm currently working with the Strava API, and I'm trying to extract data from an Array/Object which is the result of the following API call:
$recentactivities = $api->get('athlete/activities', array('per_page' => 100));
which returns:
Array (
[1] => stdClass Object (
[id] => XXXX
[resource_state] => 2
[external_id] => XXXX
[upload_id] => XXXX
[athlete] => stdClass Object (
[id] => XXXX
[resource_state] => 1
)
[name] => Let\'s see if I can remember how to do this cycling malarkey...
[distance] => 11858.3
[moving_time] => 1812
[elapsed_time] => 2220
[total_elevation_gain] => 44
[type] => Ride
[start_date] => 2014-07-12T13:48:17Z
[start_date_local] => 2014-07-12T14:48:17Z
[timezone] => (
GMT+00:00
) Europe/London
[start_latlng] => Array (
[0] => XXXX
[1] => XXXX
)
[end_latlng] => Array (
[0] => XXXX
[1] => -XXXX
)
[location_city] => XXXX
[location_state] => England
[location_country] => United Kingdom
[start_latitude] => XXXX
[start_longitude] => XXXXX
[achievement_count] => 4
[kudos_count] => 1
[comment_count] => 0
[athlete_count] => 1
[photo_count] => 0
[map] => stdClass Object (
[id] => a164894160
[summary_polyline] => XXXX
[resource_state] => 2
)
[trainer] =>
[commute] =>
[manual] =>
[private] =>
[flagged] =>
[gear_id] => b739244
[average_speed] => 6.544
[max_speed] => 10.8
[average_cadence] => 55.2
[average_temp] => 29
[average_watts] => 99.3
[kilojoules] => 179.9
[device_watts] =>
[average_heartrate] => 191.2
[max_heartrate] => 200
[truncated] =>
[has_kudoed] =>
)
This repeats for the most recent activities.
I'm attempting to extract average_heartrate, which I can do for a single object using the following:
$recentactivities[1]->average_heartrate;
but I'd like to extract all instances of average_heartrate from the Array. I've tried to use a foreach statement, but to be honest, I have no idea where to start.
Any help would be much appreciated.

It's actually pretty simple you can indeed use a foreach loop:
foreach($myArray as $obj){
//$obj is an object so:
if(isset($obj->average_heartrate)){
echo $obj->average_heartrate;
}
}

With this code you iterate through your array with objects and save the wanted array within an array so you can work further with it.
$heartrateArray = array(); // create a new array
//iterate through it with an foreach
foreach($recentactivities as $activity){
// save the average_heartrate as a value under a new key in the array
$heartrateArray[] = $activity->average_heartrate;
}

Get Data From Multidimensional Array [closed]

Use a simple foreach() for iterating over MD arrays..
foreach($yourarray['results'] as $k=>$arr)
{
echo $arr['birthday'];
echo $arr['photo']['name'];
echo $arr['photo']['url'];
}

Let's say your array is $data,
foreach ($data['results'] as $key => $value)
echo $value['birthday'];
echo $value['photo']['name'];
echo $value['photo']['url'];
}
use $key as index value.

This is how you can access your nested array, regardless the amount of categories:
// Loop over all elements of main array element
foreach($array['results'] as $arr_key => $arr_value) {
// Loop over children
foreach($arr_value as $key => $value) {
// Element is array (like 'category' or 'photo')
if(is_array($value)) {
foreach($value as $sub_key => $sub_value) {
echo $key."[".$sub_key."] = ".$sub_value;
}
// Element is no array
} else {
echo $key." = ".$value;
}
}
}
(Example)

decode json response to get json parameter value

Pass true into the second parameter of json_decode to return an array (which is how you're trying to access it):
$response = json_decode($data, true); // associative array returned
print_r($response);
echo $response["rating"]; // 4
Manual
Otherwise, access the rating as a property of the object that you've got:
$response = json_decode($data);
echo $response->rating; // 4

Get value in mutli array

This should work:
foreach( $results as $result)
foreach( $result['product'] as $product)
echo $product['title'];

You could either loop through the array like pointed out above or possibly use array_walk_recursive like this:
$title_array = array();
array_walk_recursive($input_array, 'find_titles');
function find_titles($value, $key) {
global $title_array;
if ($key == 'title') {
$title_array[] = $value;
}
}
This might be a better solution if you you are not certain what the structure of the input array will be (i.e. how many levels deep the key you are looking for is nested).

To output the title of each product in $results:
foreach ($results as $result) {
echo $result['product']['title'];
}

Consider using array_walk_recursive
Working example
<?php
$a = array("hai", array("ha"=>1, "hai"=>2, array("a"=>1, "b"=>2)));
function test($item, $key)
{
echo "$key holds $item\n";
}
array_walk_recursive($a, 'test');
0 holds hai
ha holds 1
hai holds 2
a holds 1
b holds 2
If you are interested only in title
Consider using foreach
foreach($results['item'] as $result) {
echo $result['product']['title'];
}

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Iterating through array in PHP for Yahoo API - php

Related

Echo arrays in foreach loop codeigniter

Extract data from Array/Object in PHP?

Get Data From Multidimensional Array [closed]

decode json response to get json parameter value

Get value in mutli array

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