I had the problem, that I wanted to sort an array of builds by name, but names could be 1.1 or, 2.10.0.1 or even 2.0.9.
Thatswhy I made the following sort alogrithm in PHP by using usort and an own compare function.
function builds_sort($a, $b) {
if ($a['name']==$b['name']) {
return 0;
}
$ap=explode('.',$a['name']);
$bp=explode('.',$b['name']);
foreach ($ap as $pos => $number) {
if (!isset($bp[$pos])) {
return 1;
} elseif ($number > $bp[$pos]) {
return 1;
} elseif ($number < $bp[$pos]) {
return -1;
}
}
return -1;
}
// Testarray
$builds=array(
array("name"=>"2.1.0","id"=>"210","suite_id"=>1),
array("name"=>"2.1.1","id"=>"211","suite_id"=>1),
array("name"=>"3.0.0","id"=>"3","suite_id"=>1),
array("name"=>"10","id"=>"3","suite_id"=>1),
array("name"=>"2.1.10","id"=>"2110","suite_id"=>1),
array("name"=>"2.1.2","id"=>"212","suite_id"=>1)
);
usort ($builds,"builds_sort");
This function sorts each element by "name" with DESC.
