How to insert the elements of the X array into an index of the Y array?

Asked

Viewed 161 times

2

I own the array y where in your index 0 holds the values App and Views

array (size=1)
  0 => 
    array (size=2)
      0 => string 'App' (length=3)
      1 => string 'Views' (length=5)

In the x I have a array with N values

array (size=1)
      0 => 'a'
      1 => 'b'
      ...

And I want to add them to the first index of array x, when using array_merge do not get the expected result:

array (size=1)
      0 => 
        array (size=2)
          0 => string 'App' (length=3)
          1 => string 'Views' (length=5)
      1 => 'a'
      2 => 'b'

When it should be:

array (size=1)
      0 => 
        array (size=2)
          0 => string 'App' (length=3)
          1 => string 'Views' (length=5)
          2 => string 'a'
...

Example:

$ranking[] = ['App', 'Views'];

$options[] = ['A', 'B'];

$merge = array_merge($ranking, $options);
$merge2 = array_merge($ranking[0], $options);

var_dump($merge);
var_dump($merge2);

Example in ideone

php array

  • Put the ideone code in the question :)

  • Would that be so? https://ideone.com/IWahLp

  • @rray Ops! Edited!

  • Apparently yes, @Rafaelwithoeft

2 answers

5


You must select the appropriate array (position 0 of the y array) to merge:

$y[0] = array_merge($y[0],$x);

3

With PHP5.6 you can simplify this assignment by combining array_push() and the operator eclipse(...), it unpacks each element of the array as an argument to push_array(), in practice the generated instruction would be something like array_push($ranking[0], 'A', 'B', 'C')

Example - ideone

<?php
   $ranking[] = ['App', 'Views'];
   $options[] = ['A', 'B'];
   array_push($ranking[0], ...$options[0]);

   echo "<pre>";
   print_r($ranking);

Exit:

Array
(
    [0] => Array
        (
            [0] => App
            [1] => Views
            [2] => A
            [3] => B
        )

)

Related:

What is the name of the ... operator used in PHP 5.6?

Browser other questions tagged php array

You are not signed in. Login or sign up in order to post.