Configure 2d php array - php

Question

I'm trying to adjust a php chart library on my code with some data fetched from a database. I am too close but i think i am confused with all these arrays. I will try to explain as easy as possible. The appropriate form of constructing the data that my library needs to read in order to create a php chart is the following:
//With this value my api displays the chart normally
$p->data = array(array(array("2015/10/10",44),array("2015/10/11",56)));
The way i'm trying to construct the aforementioned array is the following
//Fetch results from database and push values into an array
while($row = mysqli_fetch_array($result)){
$values[] = array($row['Date'] => $row['Total']);
}
$p->data = array(array($values));
But unfortunately the chart is not displaying my values. How can i fix my code in order to achive this format:
$p->data = array(array(array("2015/10/10",44),array("2015/10/11",56)));

Answer 1

You are inserting $row['Date'] as the key and $row['Total'] as the value, which, if you run print_r($p->data) results in this:
Array
(
[0] => Array
(
[0] => Array
(
[0] => Array
(
[2015/10/10] => 44
)
[1] => Array
(
[2015/10/11] => 56
)
)
)
)
You actually need
while($row = mysqli_fetch_array($result)){
$values[] = array($row['Date'], $row['Total']);
}
This way, you will get this array:
Array
(
[0] => Array
(
[0] => Array
(
[0] => Array
(
[0] => 2015/10/10
[1] => 44
)
[1] => Array
(
[0] => 2015/10/11
[1] => 56
)
)
)
)
Exactly what you need

Answer 2

If the array should be the same as the first code example, you don't need the =>. So, you can just do the following:
while($row = mysqli_fetch_array($result)){
$values[] = array($row['Date'], $row['Total']);
}
The => creates a key value pair with the first item as the key and the second as the value. If you use a ,, it creates a flat array with those items as values.

Answer 3

You're wrapping one too many arrays:
$p->data = array(array(array("2015/10/10",44),array("2015/10/11",56)));
^-A ^-B ^-C0 ^-C1
and then
$values[] = array($row['Date'] => $row['Total']);
^-C0,C1,C2,etc...
^--B
}
$p->data = array(array($values));
^--A
^---????