I need some help formatting an array i get from an api, the current format is hard for me to work with so i want to change it for something more workable.
I have the following array:
[attributes] => Array
(
[0] => Array
(
[attribute] => Healing
[modifier] => 179
)
[1] => Array
(
[attribute] => Toughness
[modifier] => 128
)
[2] => Array
(
[attribute] => ConditionDamage
[modifier] => 128
)
and i want to turn it into this:
[attributes] => Array
(
[Healing] => 179
[Toughness] => 128
[ConditionDamage] => 128
)
any help would be appreciated.
If you're using PHP >= 5.5
$array['attributes'] = array_column(
$array['attributes'],
'attribute',
'modifier'
);
else
$array['attributes'] = array_walk(
$array['attributes'],
function (&$value) {
$value[$value['attribute']] = $value['modifier'];
unset($value['attribute'], $value['modifier']);
}
);
Using PHP >= 5.5, you can take advantage of array_column(), in conjunction with array_combine().
$new_arr = array_combine(array_column($arr, 'attribute'), array_column($arr, 'modifier'));
See demo
Otherwise, a simple foreach will work:
foreach ($arr as $ar) {
$new_arr[$ar['attribute']] = $ar['modifier'];
}
See demo
function flattenAPIarray($APIArray)
{
$flatArray = [];
foreach($APIArray as $element)
{
$key = array_keys($element);
$flatArray[$element[$key[0]]] = $element[$key[1]];
}
return $flatArray;
}
Try this function, I wrote for you. It's not generalized in any manner, but works fine with your multidimensional associative array. The clue is to use the array_keys() function, as you don't have any index to iterate using the foreach loop.
Hope that helps! (It's my first answer - be kind :o)
Related
Have array like this:
Array
(
[0] => Array
(
[Slot_id] => 7048,
[name] => value
)
[1] => Array
(
[Slot_id] => 7049,
[name] => value
)
)
I want to get the below array form
Slot_id => Array
(
[0] => 7048,
[1] => 7049
)
currently i am using foreach function, any other best method?
If you are using PHP >= 5.5 then array_column is the solution:
$result = array_column($input, 'Slot_id');
For earlier versions, either manually foreach or alternatively:
with array_map:
// assumes PHP 5.3 for lambda function, for earlier PHP just do foreach
$result = array_map(function($row) { return $row['Slot_id']; }, $input);
with array_walk:
// assumes PHP 5.4 for short array syntax, for 5.3 use array() instead of []
$result = [];
array_walk($input, function($row) use (&$result) { $result[] = $row['Slot_id']; });
Use array_column function:
https://php.net/manual/fr/function.array-column.php
$subArray = array_column ($your_array, 'Slot_id');
My Array shown as follows:
Array
(
[0] => Array
(
[amount_id] => 1
[enquiry_id] => 1
[project_id] => 1
)
[1] => Array
(
[amount_id] => 4
[enquiry_id] => 4
[project_id] => 4
)
[2] => Array
(
[amount_id] => 5
[enquiry_id] => 5
[project_id] => 5
)
)
This Array can be increase. How can i get value of each 'amount_id' from this array? What function should i use? Can for each function will work?
Just try with:
$input = array( /* your data */ );
$output = array();
foreach ($input as $data) {
$output[] = $data['amount_id'];
}
You can use a one-liner array_walk() to print those..
array_walk($arr,function($v){ echo $v['amount_id']."<br>";});
Working Demo
Do like this in array_map or Use array_column for The version PHP 5.5 or greater
$outputarr= array_map(function($item){ return $item['amount_id'];},$yourarr);
print_r($outputarr);
Try the following, this is accessing the specific array - easier to debug later on and better speed:
$num=count($your_array);
for($i="0"; $i<$num; $i++)
{
echo $your_array[$i]['amount_id'];
}
you could loop until $i < count($your_array) but it means that the count will run in every loop, for high performance sites I wouldn't do it.
you could access a specific element in a 2D array by $your_array[$the_index]['amount_id'] or other index.
I have an array as so:
$diff_date_results =
Array (
[0] => Array ( [differential] => 7.7 [date] => 2012-12-30 )
[1] => Array ( [differential] => 8.2 [date] => 2012-12-31 )
[2] => Array ( [differential] => 9.9 [date] => 2013-01-03 )
)
I would like to extract all values from the differential key of each of the inner arrays to use the array_sum function on the newly created array.
I have this, which draws out the three numbers for me, but I get php errors for each number as an undefined index. (Notice: Undefined index: 7.7 in C:\wamp\www\jquery\test.php on line 55)
My code thus far is as follows:
$diff_results = array();
foreach($diff_date_results as $entry){
$diff_results[$entry['differential']];
}
print_r($diff_results);
I am sure it is simple, I have been screwing around with it for way too long now, any help would be wonderful!
Thanks.
$diff_results = array();
foreach($diff_date_results as $entry){
$diff_results[] = $entry['differential'];
}
//just for displaying all differential
print_r($diff_results);
Now, you can use array_sum on $diff_results.
Moreover, if you want to have sum then you can use below method too.
$diff_results = "";
foreach($diff_date_results as $entry){
$diff_results = $diff_results + $entry['differential'];
}
//$diff_results will have sum of all differential
echo $diff_results;
$diff_results = array_map($diff_date_results,
function($entry) { return $entry['differential']; });
Do it like this:
$diff_results = array();
foreach($diff_date_results as $key => $entry){
$diff_results[] .= $entry['differential']];
}
print_r($diff_results);
Thanks.
$diff_date_results = array (
0 => array ( 'differential'=> 7.7, 'date' => 20),
1 => Array ( 'differential' => 8.8, 'date' => 20 ),
2 => Array ( 'differential' => 9.8 ,'date' => 20 ),
);
$value_differential=array();
foreach( $diff_date_results as $key=>$value){
print_r($value);
$value_differential[]=$value['differential'];
}
print_r(array_sum($value_differential));
For anyone stumbling across this question as I have, the best solution in my opinion is a working version of Barmars as below:
$diff_results = array_map(function($entry)
{
return $entry['differential'];
},
$diff_date_results);
it's a more elegant, 1 line solution (which I've expand to 5 lines for readability).
I have an array $templates that looks like this:
Array
(
[0] => Array
(
[displayName] => First Template
[fileName] => path_to_first_template
)
[1] => Array
(
[displayName] => Second Template
[fileName] => path_to_second_template
)
[2] => Array
(
[displayName] => Third template
[fileName] => path_to_third_template
)
)
And I want to make it to look like this:
Array
(
[path_to_first_template] => First Template
[path_to_second_template] => Second Template
[path_to_third_template] => Third Template
)
That is, I want the fileName of the nested arrays to be the new array's key and displayName to be its value.
Is there a pretty way to do this without having to loop through the array. I had no luck searching, as I didn't know exactly what to search for.
Here's a classic foreach in action:
$result = array();
foreach($array as $row) {
$result[$row['fileName']] = $row['displayName'];
};
Here's a "clever" way to do it:
$result = array();
array_walk($array, function($row) use (&$result) {
$result[$row['fileName']] = $row['displayName'];
});
As you can see, the second approach is not really better than the first one. The only advantage is that theoretically you can pile upon the second form because it is a single expression, but in practice it's a long enough expression already so you wouldn't want to do that.
Loop in your array and make a new one:
$newArray = array();
foreach($array as $val){
$newArray[$val['fileName']] = $val['displayName'];
}
print_r($newArray);
$ret = array()
foreach ($templates as $template) {
$ret[$template["fileName"]] = $template["displayName"];
}
I'm new to working with arrays so I need some help. With getting just one vaule from an array. I have an original array that looks like this:
$array1= Array(
[0] => 1_31
[1] => 1_65
[2] => 29_885...)
What I'm trying to do is seach for and return just the value after the underscore. I've figured out how to get that data into a second array and return the vaules as a new array.
foreach($array1 as $key => $value){
$id = explode('_',$value);
}
which gives me:
Array ( [0] => 1 [1] => 31 )
Array ( [0] => 1 [1] => 65 )
Array ( [0] => 29 [1] => 885 )
I can also get a list of the id's or part after the underscore by using $id[1] I'm just not sure if this is the best way and if it is how to do a search. I've tried using in_array() but that searches the whole array and I couldn't make it just search one key of the array.
Any help would be great.
If the part after underscore is unique, make it a key for new array:
$newArray = array();
foreach($array1 as $key => $value){
list($v,$k) = explode('_',$value);
$newArray[$k] = $v;
}
So you can check for key existence with isset($newArray[$mykey]), which will be more efficient.
You can use preg_grep() to grep an array:
$array1= array("1_31", "1_65", "29_885");
$num = 65;
print_r(preg_grep("/^\d+_$num$/", $array1));
Outputs:
Array
(
[1] => 1_65
)
See http://ideone.com/3Fgr8
I would say you're doing it just about as well as anyone else would.
EDIT
Alternate method:
$array1 = array_map(create_function('$a','$_ = explode("_",$a); return $_[1];'),$array1);
echo in_array(3,$array1) ? "yes" : "no"; // 3 being the example
I would have to agree. If you wish to see is a value exists in an array however just use the 'array_key_exists' function, if it returns true use the value for whatever.