How to create sub associative array? - php

Question

I am learning associative arrays. This is what I am doing:
array_push( $classe ,array(
'year'=>$annoClasse,
'section'=>$sezione,
'student'=>$member->first_name." ".$member->last_name)
);
That creates:
array (
0 =>
array (
'year' => 'Secondo',
'section' => 'd',
'student' => 'Stephany Johnson',
),
1 =>
array (
'year' => 'Secondo',
'section' => 'd',
'student' => 'Sandra White',
),
)
How would I create something like this? Basically to have each separate property for the student.
array (
0 =>
array (
'year' => 'Second',
'section' => 'd',
'student' (
'name' => 'Stephany',
'surname' => 'Johnson'
)
),
1 =>
array (
'year' => 'Second',
'section' => 'd',
'student' (
'name' => 'Sandra',
'surname' => 'White'
),
)
)
And how would I then echo the student only?

Answer 1

This can be accomplished with the following code:
array_push( $classe ,array(
'year'=>$annoClasse,
'section'=>$sezione,
'student'=>array(
'name'=>$member->first_name,
'surname'=>$member->last_name
)
);
Then to echo only the student:
foreach ($classe as $c) {
echo $c['student']['name'] . " " . $c['student']['surname'] . PHP_EOL;
}

Answer 2

you can do it like that :
array_push( $classe ,array('year'=>$annoClasse, 'section'=>$sezione, 'student' => array('name' => $student_name, 'surname' => $student_surname)));
use foreach to loop the array and print the values you want :
foreach ($classe as $key => $value) {
echo $value['student']['name']; // or echo $value['student']['surname']; etc..
}

Answer 3

You can assign anything to the array key, it can be a bool, integer, string, or array. In your case just assign a new array to the student key.
array_push( $classe, array(
'year' => $annoClasse,
'section' => $sezione,
'student' => array(
'name' => $member->first_name,
'surname' => $member->last_name
)
));