How to use ForEach in a multidimensional array in PHP

I would like to know how to run the whole array only with ForEach: 

$Marcas = array(array('Fiat', 'Volkswagen', 'Audi'),array('Yamaha', 'Suzuki', 'Honda'),array('Samsung', 'Motorola', 'Apple'));
Author: Isac, 2018-06-07
Source

1 answers

A multidimensional array would normally be traversed with a double foreach. In your case with: 

foreach ($Marcas as $subMarcas){
    foreach ($subMarcas as $marca){
        //código aqui
    }
}

However I got the idea that I wanted to do something with only one foreach. You can do this if you get an array where it matches the junction of all sub-arrays.

For this you can use call_user_func_array passing as first parameter "array_merge" and as second to the mark array, and then just iterate normally: 

$marcas = call_user_func_array("array_merge", $Marcas);
foreach ($marcas as $marca){
    //código aqui
}

Can even do in a row śo if want: 

foreach (call_user_func_array("array_merge", $Marcas) as $marca){
    //código aqui
}

See This last example in Ideone

 1
Author: Isac, 2018-06-07 21:42:57