[php] PHP add elements to multidimensional array with array_push

I have a multidimensional array $md_array and I want to add more elements to the sub-arrays recipe_type and cuisine coming from a loop that reads data from a table.

In the loop, I create a new table $newdata for each row:

$newdata =  array (
          'wpseo_title' => 'test',
          'wpseo_desc' => 'test',
          'wpseo_metakey' => 'test'
        );

and then, using array_push() I need to append the $newdata arrays to the following multidimensional array:

$md_array= array (
     'recipe_type' => 
      array (
        18 => 
        array (
          'wpseo_title' => 'Salads',
          'wpseo_desc' => 'Hundreads of recipes for Salads',
          'wpseo_metakey' => ''
        ),
        19 => 
        array (
          'wpseo_title' => 'Main dishes',
          'wpseo_desc' => 'Hundreads of recipes for Main dishes',
          'wpseo_metakey' => ''
        )
      ),
     'cuisine' => 
      array (
        22 => 
        array (
          'wpseo_title' => 'Italian',
          'wpseo_desc' => 'Secrets from Sicily in a click',
          'wpseo_metakey' => ''
        ),
        23 => 
        array (
          'wpseo_title' => 'Chinese',
          'wpseo_desc' => 'Oriental dishes were never this easy to make',
          'wpseo_metakey' => ''
        ),
        24 => 
        array (
          'wpseo_title' => 'Greek',
          'wpseo_desc' => 'Traditional Greek flavors in easy to make recipies',
          'wpseo_metakey' => ''
        )
      ) 
    );

Whats the syntax for adding a new element (array) to the recipe_type array with array_push? I could never get my head around multidimensional arrays and I'm a bit confused.

This question is related to php multidimensional-array array-push

The answer is


As in the multi-dimensional array an entry is another array, specify the index of that value to array_push:

array_push($md_array['recipe_type'], $newdata);

I know the topic is old, but I just fell on it after a google search so... here is another solution:

$array_merged = array_merge($array_going_first, $array_going_second);

This one seems pretty clean to me, it works just fine!