Sort Array by court and hour ascending - php

Question

How can i sort this array in php so that it stays sorted by court and hour in ascending order.
The array is the following:
array(15) {
[0]=>
array(1) {
["Court 3"]=>
string(5) "19h00"
}
[1]=>
array(1) {
["Court 1"]=>
string(5) "21h00"
}
[2]=>
array(1) {
["Court 2"]=>
string(5) "21h00"
}
[3]=>
array(1) {
["Court 1"]=>
string(5) "20h00"
}
[4]=>
array(1) {
["Court 3"]=>
string(5) "18h00"
}
[5]=>
array(1) {
["Court 2"]=>
string(5) "18h00"
}
[6]=>
array(1) {
["Court 1"]=>
string(5) "16h00"
}
[7]=>
array(1) {
["Court 1"]=>
string(5) "18h00"
}
[8]=>
array(1) {
["Court 4"]=>
string(5) "18h00"
}
[9]=>
array(1) {
["Court 2"]=>
string(5) "19h00"
}
[10]=>
array(1) {
["Court 1"]=>
string(5) "19h00"
}
[11]=>
array(1) {
["Court 2"]=>
string(5) "17h00"
}
[12]=>
array(1) {
["Court 3"]=>
string(5) "17h00"
}
[13]=>
array(1) {
["Court 4"]=>
string(5) "19h00"
}
[14]=>
array(1) {
["Court 3"]=>
string(5) "20h00"
}
}
My attempt was this one:
asort($courtsHoras);
foreach($courtsHoras as $key => $value){
foreach($value as $key1 => $value1){
echo $value1;
}
}
var_export() of the array
array ( 0 => array ( 'Court 3' => '19h00', ), 1 => array ( 'Court 1' => '21h00', ), 2 => array ( 'Court 2' => '21h00', ), 3 => array ( 'Court 1' => '20h00', ), 4 => array ( 'Court 3' => '18h00', ), 5 => array ( 'Court 2' => '18h00', ), 6 => array ( 'Court 1' => '16h00', ), 7 => array ( 'Court 1' => '18h00', ), 8 => array ( 'Court 4' => '18h00', ), 9 => array ( 'Court 2' => '19h00', ), 10 => array ( 'Court 1' => '19h00', ), 11 => array ( 'Court 2' => '17h00', ), 12 => array ( 'Court 3' => '17h00', ), 13 => array ( 'Court 4' => '19h00', ), 14 => array ( 'Court 3' => '20h00', ), )

Answer 1

You can use strnatcmp for this purpose along with usort. We first compare the court {some_num} key and if they are not equal, we return the result accordingly.
If they are same, we return the comparison of their timestamps.
usort($data,function($a,$b){
$court_name_1 = array_keys($a)[0];
$court_name_2 = array_keys($b)[0];
$court_ordering = strnatcmp($court_name_1,$court_name_2);
if($court_ordering === 0){
return strnatcmp($a[$court_name_1],$b[$court_name_2]);
}
return $court_ordering;
});
Demo: http://sandbox.onlinephpfunctions.com/code/fe3330ceb671bac3984e062a6f784947a6f4e81e

Answer 2

To simplify the sorting process, you need to normalise the array keys before sorting.
For example:
$a = [
["Court 3" => "19h00"],
["Court 1" => "21h00"],
["Court 2" => "21h00"],
["Court 1" => "20h00"],
["Court 3" => "18h00"],
["Court 2" => "18h00"],
["Court 1" => "16h00"],
["Court 1" => "18h00"],
["Court 4" => "18h00"],
["Court 2" => "19h00"],
["Court 1" => "19h00"],
["Court 2" => "17h00"],
["Court 3" => "17h00"],
["Court 4" => "19h00"],
["Court 3" => "20h00"]
];
$b = [];
foreach($a as $ka => $va) {
foreach($va as $kb => $vb) {$b[$kb][] = $vb;}
}
ksort($b); // sort courts
foreach ($b as $k => $v) {sort($b[$k]);} // sort hours
var_dump($b);