Convert multidimensional array into single array

Question

I have an array which is multidimensional for no reason

/* This is how my array is currently */
Array
(
[0] => Array
    (
        [0] => Array
            (
                [plan] => basic
            )

        [1] => Array
            (
                [plan] => small
            )

        [2] => Array
            (
                [plan] => novice
            )

        [3] => Array
            (
                [plan] => professional
            )

        [4] => Array
            (
                [plan] => master
            )

        [5] => Array
            (
                [plan] => promo
            )

        [6] => Array
            (
                [plan] => newplan
            )

    )

 )

I want to convert this array into this form

/*Now, I want to simply it down to this*/
Array (
[0] => basic
[1] => small
[2] => novice
[3] => professional
[4] => master
[5] => promo
[6] => newplan
)

Any idea how to do this?

Answer 1

For this particular case, this'll do:

$array = array_map('current', $array[0]);

It's basically the exact same question is this one, look at some answers there: PHP array merge from unknown number of parameters.

Answer 2

 $singleArray = array();

    foreach ($multiDimensionalArray as $key => $value){
        $singleArray[$key] = $value['plan'];
    }

this is best way to create a array from multiDimensionalArray array.

thanks

Answer 3

$array = array_column($array, 'plan');

The first argument is an array | The second argument is array key.

Note: array_column was introduced in PHP 5.5 so it won't work in earlier versions.

Answer 4

Multi dimensional array to single array with one line code !!! Enjoy the code.

$array=[1=>[2,5=>[4,2],[7,8=>[3,6]],5],4];
$arr=[];
array_walk_recursive($array, function($k){global $arr; $arr[]=$k;});
print_r($arr);

...Enjoy the code.

Answer 5

Save this as a php file, simply import and use single_array() function

<?php
$GLOBALS['single_array']=[];
function array_conveter($array_list){
    if(is_array($array_list)){
        foreach($array_list as $array_ele){
            if(is_array($array_ele)){
                array_conveter($array_ele);
            }else{
                array_push($GLOBALS['single_array'],$array_ele);
            }
        }
    }else{
        array_push($GLOBALS['single_array'],$array_list);
    }
}
function single_array($mix){
    foreach($mix as $single){
        array_conveter($single);
    }return $GLOBALS['single_array'];
    $GLOBALS['single_array']=[];
}
/* Example convert your multi array to single  */
$mix_array=[3,4,5,[4,6,6,7],'abc'];
print_r(single_array($mix_array));

?>

Answer 6

I have done this with OOP style

$res=[1=>[2,3,7,8,19],3=>[4,12],2=>[5,9],5=>6,7=>[10,13],10=>[11,18],8=>[14,20],12=>15,6=>[16,17]];
class MultiToSingle{
public $result=[];
public function __construct($array){
    if(!is_array($array)){
        echo "Give a array";
    }
    foreach($array as $key => $value){
        if(is_array($value)){
            for($i=0;$i<count($value);$i++){
                $this->result[]=$value[$i];
            }  
        }else{
            $this->result[]=$value;
        }
    }
}
}

$obj= new MultiToSingle($res);
$array=$obj->result;
print_r($array);