Php parse multilevel - xml into array - php

Question

I am trying to convert xml into php array but somehow i am doing a mistake, can anyone please help me ?
Here the xml formate :
<Department Id="3">
<Week Date="23/03/2020">
<Class DateTime="23/03/2020 18:00"/>
<Class DateTime="23/03/2020 18:45"/>
</Week>
<Week Date="30/03/2020">
<Class DateTime="30/03/2020 18:00"/>
<Class DateTime="30/03/2020 18:45"/>
</Week>
</Department>
Output Need like this :
Array
(
[0] => Array
(
[0] => Array
(
[DateTime] => 23/03/2020 18:00
)
[1] => Array
(
[DateTime] => 23/03/2020 18:45
)
)
[1] => Array
(
[0] => Array
(
[DateTime] => 30/03/2020 18:00
)
[1] => Array
(
[DateTime] => 30/03/2020 18:45
)
)
)
This is what i have tried
foreach ($xml->children() as $week) {
foreach ($week->children() as $class) {
$j = 0;
foreach ($class->attributes() as $a => $b){
$results[$i][$j][$a] = (string) $b;
}
$j++;
}
$i++;
}
I dont know whats wrong in my code :(

Answer 1

It's just a case of getting the right levels in the XML to match the loops, this builds a weeks data at a time and adds it into the overall results...
$results = [];
foreach ( $xml->Week as $week ) {
$weekData = [];
foreach ( $week->Class as $class ) {
$weekData[]['DateTime'] = (string)$class['DateTime'];
}
$results[] = $weekData;
}
To make this load all attributes...
$results = [];
foreach ( $xml->Week as $week ) {
$weekData = [];
foreach ( $week->Class as $class ) {
$classData = [];
foreach ( $class->attributes() as $name => $value ) {
$classData[$name] = (string)$value;
}
$weekData[] = $classData;
}
$results[] = $weekData;
}