I've been trying for a while to find out why I get an error when trying to traverse this array that the Youtube API generates (tree obtained by print_r):
Array
(
[nextPageToken] => CAIQAA
[items] => Array
(
[0] => Array
(
[snippet] => Array
(
[resourceId] => Array
(
[videoId] => sGIm0-dQd8M
)
)
)
[1] => Array
(
[snippet] => Array
(
[resourceId] => Array
(
[videoId] => VGd1ml4Hvas
)
)
)
)
)
In the first instance, I tried foreach but it generates an error:
$data_decode = json_decode($data, true); //here I get my array
foreach ($data_decode as $decode){
foreach ($decode as $code){
echo $code['snippet']['resourceId']['videoId'];
}
}
Invalid argument supplied for foreach()
I think the problem is for the "nextPageToken" node, which I need to have.
What is the correct way to traverse this array?
foreach ($data_decode['items'] as $item){
echo $element['snippet']['resourceId']['videoId'];
}
Just a tip, it's much easier on me if you use var_export instead of print_r var_export will print an array that is syntactically correct for PHP, print_r prints an array in a human readable format.
Therefor I have to take your example data and replace all the [key] with "key" quote the values and add in commas before I can use it in code to test with.
I can do it, but it's tedious.
Related
I have the following output when printing an array called yestardayArray using print_r:
Array
(
[project-id] => Array
(
[373482] => Array
(
[responsible-ids] => Array
(
[171812,129938] => Array
(
[0] => Array
(
[task-id] => 18055196
[content] => HU-002
[responsible-ids] => 171812,129938
)
)
[171812] => Array
(
[0] => Array
(
[task-id] => 18055300
[content] => HU-002
[responsible-ids] => 171812
)
[1] => Array
(
[task-id] => 18055307
[content] => HU-002 - BACK
[responsible-ids] => 171812
)
)
)
)
)
)
I'm iterating througth project-id (using the variable $pid), in the case of this example "373482", and also iterating througth responsible-ids with $key. As $key i'm using all the posible responsible-ids values for the project to get a match and do some stuff.
That work great in the case that there is only one responsible (because there is a full match), but if there are more, like in "171812,129938" there is no match.
How would you validate if $key (171812 or 129938) is part of responsible-ids ("171812,129938")?
I tried to convert the array key to a string, in order to use built-in php search functions like substr_count or strpos.
$needString = $yesterdayArray["project-id"][$pid]["responsible-ids"][$key];
But when I print needString I get "Array" instead of "171812,129938".
What can I do?
Call explode() on the keys, and then use in_array() to check if $key is in the array.
foreach ($yesterdayArray["project-id"] as $pid => $project) {
foreach ($project["responsible-ids"] as $resp_ids => $tasks) {
$resp_id_array = explode(',', $resp_id);
if (in_array($key, $resp_id_array)) {
// do something
}
}
}
I am using aws redis cache for quicker results instead of saving in db.
With this method
$result = $client->listTagsForResource([
'ResourceName' => '<string>', // REQUIRED
]);
Now it gives me result in given format.
Array
(
[0] => Array
(
[Key] => key1
[Value] => string1
)
[1] => Array
(
[Key] => status
[Value] => 1
)
)
I am unable to find a function in amazon docs which can give me direct results, so I decided to search in array , but finding in very large array with loops cost me in terms of time. So is there a way to convert it in following
Array
(
[key1] => string1,
[status] => 1
)
So I can directly access array index by using $array['key1']
You can try something like this to create new array:
$newArray = array_combine(
array_column($array, 'Key'),
array_column($array, 'Value')
);
echo $newArray['status'];
I have the following array, since i converted the string i got back from a SOAP call to an array:
Array
(
[soapenvBody] => Array
(
[queryRequestsResponse] => Array
(
[result] => Array
(
[0] => Array
(
[BCRcustomId] => REQ16569
[BCRexternalId] => Array
(
)
[BCRrecordId] => a035700001CM60kAAD
[BCRrequestId] => a1J5700000857EYEAY
)
[1] => Array
(
[BCRcustomId] => SRQ100784
[BCRexternalId] => Array
(
)
[BCRrecordId] => a033E000001PxfAQAS
[BCRrequestId] => a1J3E0000000GSaUAM
)
)
)
)
)
I am trying to retrieve the BCRrecordId, since I need that item to make another SOAP call. I tried the following
function getID($array) {
return $array['BCRcustomId'];
}
//
$arr = array_map('getID', $array );
print_r($arr);
Now i get an error back on this saying it doesnt find it.
Undefined index: BCRcustomId in
index.php on line 97
[soapenvBody] => )Array (
My assumption is that it doenst go lower than 1 level in the array. Now i am not familair with these kinds of arrays, how would I solve this? By multiple for each loops? Or is there another way to retrieve these items
If $array is the whole response, you need to pass only result part of it:
$arr = array_map('getID', $array['soapenvBody']['queryRequestsResponse']['result']);
I have a function that generate an array (I did not made that function, comes from an API) and then saves it to a variable($customerList). I need to display just one value of an entire nested array; this array contains all this code (shown with print_r($customerList);) :
Array
(
[0] => Customer Object
(
[status:protected] =>
[creation_date:protected] => 2016-01-14T12:07:07-06:00
[balance:protected] =>
[clabe:protected] => 321654qweasd
[derivedResources:protected] => Array
(
[cards] => 123123123123
//a lot of code
How can I display just the value on "[cards]" using echo?
I have tried
//the for loop {
echo $customerList['0']['derivedResources:protected']['cards'];
And
//the for loop {
echo $customerList['0']['derivedResources']['cards'];
But it just display nothing. I haven't seen an array like this, so maybe is just a newbie mistake.
I think that "protected" thing has something to do with; but if I can display it, I can read/access it, right?
If any of you need the entire array (it's very long) I can put it here.
Thanks.
I haven't seen an array like this
It is an array of objects. Learn something about OOP.
This should work:
echo $customerList[0]->derivedResources['cards'];
Based on the print_r:
Array
(
[0] => Customer Object
(
[status:protected] =>
[creation_date:protected] => 2016-01-14T12:07:07-06:00
[balance:protected] =>
[clabe:protected] => 321654qweasd
[derivedResources:protected] => Array
(
[cards] => 123123123123
//a lot of code
We can simulate:
<?php
$CustomerObject = new \stdClass;
$derivedResources = new \stdClass();
$CustomerObject->derivedResources = ["cards" => 123123123123];
$customerList = [$CustomerObject];
// print_r($customerList);
echo $customerList[0]->derivedResources['cards'];
Which, uncommenting the print_r results in:
Array
(
[0] => stdClass Object
(
[derivedResources] => Array
(
[cards] => 123123123123
)
)
)
123123123123
I have an array of values returned from Facebook - let's call it $array.
If I do print_r($array) - it looks like this:
Array
(
[code] => 200
[headers] => Array
(
[0] => Array
(
[name] => Some value
[value] => *
)
[1] => Array
(
[name] => Some value
[value] => Some value
)
[2] => Array
(
[name] => Some value
[value] => Some value
)
)
[body] => {"about":"Some more values.","can_post":true}
)
I need to extract the body part from this array.
I cannot refer to it by it's position, I'm looking for something like $array->body and receive the {....} string.
$array->body would work if the variable $array was an object
For arrays, just use:
$body = $array['body'];
(see: http://be2.php.net/manual/en/language.types.array.php)
If you want to access to your array via -> just do 1 more step:
$array = (object) $array;
And now, you can access to your body via:
$array->body;
Else without this step there is just one way:
$array['body'];
If you are more interested about converting arrays into objects, you can visit this question: How to convert an array to object in PHP?
Access array elements by using their name.
$array['body'];