Quick implementation: converting two-dimensional arrays into one-dimensional arrays _ PHP Tutorial

Quick implementation: convert a two-dimensional array into a one-dimensional array. How to convert the following two-dimensional array into one-dimensional array. $ Msgarray (array (id45, namejack), array (id34, namemary), array (id78, namelili),); 1 solution: how to convert the following two-dimensional array into one-dimensional array.

$ Msg = array (

Array (

'Id' => '45 ',

'Name' => 'Jack'

),

Array (

'Id' => '34 ',

'Name' => 'Mary'

),

Array (

'Id' => '78 ',

'Name' => 'Lili'

),

);

1 Solution: foreach ($ msg as $ k => $ v ){

$ Ids [] = $ id;

$ Names [] = $ name;

}

2 Solution: $ ids = array_column ($ msg, 'id ');

$ Names = array_column ($ msg, 'name ');

The result of the preceding two solutions: print_r ($ names:

Array (

[0] => jack

[1] => mary

[2] => lili

)

Note: array_column (); there can be a third parameter, such as $ n = array_column ($ msg, 'name', 'id ');

The result of print_r ($ n); is:

Array (

[45] => jack

[34] => mary

[78] => lili

)

Reference: array array_column (array$array, Mixed$column_key[, Mixed$index_key= Null])

Bytes. $ Msg = array ('id' = '45', 'name' = 'Jack'), array ('id' = '34 ', 'name' = 'Mary '), array ('id' = '78', 'name' = 'Lili'),); 1 solution :...