PHP: How to reorder a two dimensional array - php

Question

This is how $myArray looks like:
Array
(
[0] => Array
(
[month] => 1
[atual] => 0.00
)
[1] => Array
(
[month] => 2
[atual] => 11970.99
)
[2] => Array
(
[month] => 3
[atual] => 2888.00
)
[3] => Array
(
[month] => 5
[atual] => 1500.00
)
)
I want to "fill the gaps" of the months. That is, for those months, where we have no data (4,6,8,9,10,11,12), I want the [atual] to be zero.
I tried:
$novo=array();
for ($i=1; $i <=12 ; $i++) {
$mes=$myArray[$i-1]['month'];
$atual=$myArray[$i-1]['atual'];
if(!$mes){
$novo[$i]=0;
} else{
$novo[$i]=$atual;
}
};
But this is returning:
Array
(
[1] => 0.00
[2] => 11970.99
[3] => 2888.00
[4] => 1500.00
[5] => 0
[6] => 0
[7] => 0
[8] => 0
[9] => 0
[10] => 0
[11] => 0
[12] => 0
)

Answer 1

[edit] now i see you have another problem, your $myArray indexes aren't matching the months.
$myArray(
array('month' => 1, 'atual' => 0.00),
array('month' => 2, 'atual' => 11970.99),
array('month' => 3, 'atual' => 2888.00),
array('month' => 5, 'atual' => 1500.00)
)
for($i = 1; $i <= 12; $i++){
$novo[$i] = 0;
}
foreach($myArray as $item){
$novo[$item['month']] = $item['atual'];
}
print_r($novo);

Answer 2

This worked:
$novo=array_fill(1,12,0);
for ($i=1; $i <=12 ; $i++) {
$mes=$myArray[$i-1]['month'];
$atual=$myArray[$i-1]['atual'];
$novo[$mes]=$atual;
};

Answer 3

With this code you get the month 1 in position 1 (not in position 0);
Also you only search in the array one time.
It's not a beautiful solution but...
$my_array = array(
array('month'=>3,'actual'=>100)
);
$results =array();
for($i=1;$i<13;$i++){
$results[$i] = 0;
}
foreach($my_array as $a){
$results[$a['month']] = $a['actual'];
}
print_r($results);

Answer 4

PHP has several functions that deal with sorting arrays, and here is a comparison of array's sorting functions

Answer 5

I didn't fully understand your question in the first response. This code should work for you. First we will create a temporary array just to hold the month and the data in an accessible format. Then we create your array :
$temp=array();
// Populate the temp array
foreach ($myArray as $row) {
if (is_array($row) && isset($row["month"])) {
$temp[$row["month"]] = $row["atual"];
}
}
// Create novo array
for ($i=0; $i <12 ; $i++) {
$novo[$i]["month"] = $i+1;
if (array_key_exists($i+1, $temp)) {
$novo[$i]['atual'] = $temp[$i+1];
} else {
$novo[$i]['atual'] = 0;
}
}