I am new working with php, I am using a foreach loop to traverse an array of decoded objects. I would like to enter values to a new array for each iteration. This is a part of the code:
//example of array before decoding it [{"id":1,"quantity":12, other values...},{"id":2,"quantity":13,other values...}] $data = json_decode($request->data); $newArray = array(); foreach ($data as $key => $value){ $newArray[$key] = $value->{'id'} //[1,2,3....] } at the moment I am generating a one-dimensional array, what I need is to obtain an array of this type:
[ 1 => ['quantity' => $other], 2 => ['quantity' => $other] ] where 'other' would be another value that I get from my loop $value->{'other'}. How can I generate this?
8 Answers
Answers 1
I'm not 100% confident, whether I really got your question ... but this is probably what you want:
foreach ($data as $key => $value) { $newArray[$value->id] = ['quantity' => $value->quantity]; } print_r($newArray); after json_decode you have objects of type stdClass, so you can access the properties like shown above.
Answers 2
I am not sure why you need quantity keys in one element arrays. Without this you can simply use array_column function:
$items = json_decode($json); // $items = json_decode($json, true); // For PHP < 7.0 $result = array_column($items, 'quantity', 'id'); But if you sure that quantity keys are necessary you can map the result using array_map:
$result = array_map(function ($quantity) { return ['quantity' => $quantity]; }, $result); Here is the demo.
Answers 3
Using a loop, you would do something like this:
$data = '[{"id":1,"quantity":12},{"id":2,"quantity":13}]'; $decoded = json_decode($data, $as_array = true); // decode as array, not object $accumulator = []; foreach($decoded as $index=>$values) { $accumulator[$values['id']] = ['quantity' => $values['quantity']]; } print_r($accumulator); The same concept can be expressed more clearly in a functional manner with array_reduce:
$data = '[{"id":1,"quantity":12},{"id":2,"quantity":13}]'; $decoded = json_decode($data, $as_array = true); // decode as array, not object $reduced = array_reduce($decoded, function($carry, $entry){ $carry[$entry['id']] = ['quantity' => $entry['quantity']]; return $carry; }, $initial_value = []); print_r($reduced); Both approaches would generate the same output:
Array ( [1] => Array ( [quantity] => 12 ) [2] => Array ( [quantity] => 13 ) ) Answers 4
i think you are expecting like this,
$request = new stdClass(); $request->data = '[{"id":1,"quantity":12,"name":"item 1","code":"ITM-111"},{"id":2,"quantity":13,"name":"item 2","code":"ITM-222"}]'; $data = json_decode($request->data); $newArray = array(); print_r($data); example:
Array ( [0] => stdClass Object ( [id] => 1 [quantity] => 12 [name] => item 1 [code] => ITM-111 ) [1] => stdClass Object ( [id] => 2 [quantity] => 13 [name] => item 2 [code] => ITM-222 ) ) $other = 'name'; // required key foreach($data as $value){ $newArray[$value->id] = [ 'quantity' => $value->quantity, 'name' => $value->{$other} ]; } print_r($newArray); output :
Array ( [1] => Array ( [quantity] => 12 [name] => item 1 ) [2] => Array ( [quantity] => 13 [name] => item 2 ) ) Answers 5
You can do it using simple foreach loop
$json='[{"id":1,"quantity":12, "ov":1,"ov2":2},{"id":2,"quantity":13,"ov":"other values"}]'; echo "<pre/>"; $a=json_decode($json,TRUE); foreach($a as $val){ $arr=$val; unset($arr['id']); $new_arr[$val['id']]=$arr; } print_r($new_arr); Your question is not clear, if you are trying to put quantity on key , try something like below
$json='[{"id":1,"quantity":12, "ov":1,"ov2":2},{"id":2,"quantity":13,"ov":"other values"}]'; echo "<pre/>"; $a=json_decode($json,TRUE); foreach($a as $val){ $arr=$val; unset($arr['id']); $temp=$arr; unset($temp['quantity']); $new_arr[$val['id']]=[$arr['quantity']=>$temp]; } print_r($new_arr); Answers 6
First of all, you must decode into an array instead of an object. This is possibile with json_decode's second parameter as true.
$data = json_decode($request->data, true); Second, ... this solution is dirt but it works:
<?php $request = new stdClass(); $request->data = '[{"id":1,"quantity":12,"foo":"bar"},{"id":2,"quantity":13,"fizz":"buzz"}]'; $data = json_decode($request->data, true); $newArray = array(); foreach ($data as $key => $value){ $other = $value; unset($other['id']); unset($other['quantity']); $newArray[$value['id']] = [ 'quantity' => $other, ]; } var_dump($newArray); And according to this example code:
[ 1 => ['quantity' => $other], 2 => ['quantity' => $other] ] the result of this script is the following:
array(2) { [1] => array(1) { 'quantity' => array(1) { 'foo' => string(3) "bar" } } [2] => array(1) { 'quantity' => array(1) { 'fizz' => string(4) "buzz" } } } Answers 7
Here's how to generate the array as you described. I've added example values for the other property to help illustrate.
<?php header('Content-Type: text/plain'); $request_data = '[{"id":1,"quantity":12,"other":"Other 1"},{"id":2,"quantity":13,"other":"Other 2"}]'; $data = json_decode($request_data); $newArray = array(); foreach ($data as $key => $value) { $newArray[$value->id] = array( 'quantity' => $value->other ); } print_r($newArray); // Returns: /* Array ( [1] => Array ( [quantity] => Other 1 ) [2] => Array ( [quantity] => Other 2 ) ) */ Answers 8
You could append array using something like this:
foreach($file_data as $value) { list($value1, $value2, $value3) = explode('|', $value); $item = array( 'value1' => $value1, 'value2' => $value2, 'value3' => $value3 ); $file_data_array[] = $item; } For more informations, take a look at the following: Creating/modifying with square bracket syntax
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