How to loop inside an array inside a loop in PHP - php

Question

Basically, what I'm trying to do is loop inside a loop and in arrays. I have no idea how to do it (that's why I'm here) and I've been testing many things.
As it sounds very confused I write down the code how it would be, but clearly that's not correct.
This below is what I've tried.
$whatever->insertOne(
['name' => 'whatever',
'data' => array(
for ($i = 0 ; $i < 50 ; $i++) { // <-first loop
'something' => array(
for ($j = 0 ; $j < 50 ; $j++) { // <-second loop
'somevalue' => array(
'date' => $date,
'value' => mt_rand(0,200)
)
}
)
}
)
]);

Answer 1

Try this out:
$data = array();
for ($j = 0 ; $j < 50 ; $j++) {
for ($i = 0 ; $i < 50 ; $i++) {
$data[$j]['something'][$i]['date'] => $date;
$data[$j]['something'][$i]['value'] => mt_rand(0,200);
}
}
$whatever->insertOne(['name' => 'whatever','data' => $data]);

Answer 2

Loop need to be outside to create final array. Don't add loop inside an array.
You probably need something like below:-
$data = ['name' => 'whatever'];
for ($i = 0 ; $i < 50 ; $i++) {
for ($j = 0 ; $j < 50 ; $j++) {
$data[$i]['something'][$j]=['somevalue' => array('date' => $date,'value' => mt_rand(0,200));
}
}
$whatever->insertOne($data);
Note:- you can print your array before insertOne() to check that you are getting array of correct format or some more manipulation needed.Thanks