ARRAY PHP How to put variables in array - php

Question

Hi guys i would like to ask help on my problem..
I have 4 variables made from my query:
$sql1 = mysql_num_rows(mysql_query("SELECT * FROM tbl_reservation WHERE YEAR(date_added) = YEAR(NOW()) AND order_action = 'Online Transaction' "));
$sql2 = mysql_num_rows(mysql_query("SELECT * FROM tbl_reservation WHERE YEAR(date_added) = YEAR(NOW()) AND order_action = 'Walkin Transaction' "));
$sql3 = mysql_num_rows(mysql_query("SELECT * FROM tbl_reservation WHERE YEAR(date_added) = YEAR(NOW())-1 AND order_action = 'Online Transaction' "));
$sql4 = mysql_num_rows(mysql_query("SELECT * FROM tbl_reservation WHERE YEAR(date_added) = YEAR(NOW())-1 AND order_action = 'Walkin Transaction' "));
I would like to put them in an array..to be exactly on my expectations.
Here is my sample code:
$stack = array($sql1, $sql2);
array_push($stack, $sql3, $sql4);
$query = print_r($stack);
$result = $query;
print json_encode($result);
It display like this on my browser:
Array ( [0] => 0 [1] => 8 [2] => 0 [3] => 1 ) true
But i want to display it like this:
[{"0","1"},
{"2","3"}]
I am planning to make a line graph on this.. I have a Chart.min.js and jquery.min.js
If any way.. The whole point.. i want to make a line graph that would compare my data from current year to last year.
Help me pls. :(

Answer 1

Give a try
<?php
$a = array(0,8,0,1) ;
echo "<pre>";print_r(json_encode(array_chunk($a, 2)));
?>
with that. You can get this result
[[0,8],[0,1]]
Btw, Why you need to do that with your array ? .
Edited
After i check your question again, So you want get the order
<?php
$stack = array(0,8,0,1) ;
$array2= array();
foreach ($stack as $key => $val) {
$array2[] = $key;
}
echo "<pre>";print_r(json_encode(array_chunk($array2, 2)));
?>