Object before:
0 =>
object(stdClass)[130]
public 'id' => int 17
public 'account_id' => int 18
public 'rank' => int 1
public 'skill' => string '0.0000' (length=6)
1 =>
object(stdClass)[131]
public 'id' => int 33
public 'account_id' => int 19
public 'levels' => int 0
public 'rank' => int 3
public 'skill' => string '0.0000' (length=6)
2 =>
object(stdClass)[132]
public 'id' => int 23
public 'account_id' => int 24
public 'rank' => int 2
public 'skill' => string '0.0000' (length=6)
3 =>
object(stdClass)[133]
public 'id' => int 23
public 'account_id' => int 24
public 'rank' => int 11
public 'skill' => string '0.0000' (length=6)
I am using the following function
usort($results, function($a, $b)
{
return strcmp($a->rank, $b->rank);
});
Instead $results to get sorted like this: 1, 2, 3, 11. The object gets sorted like this: 1, 11, 2, 3
That's because strcmp
is for STRINGS . That means string comparison rules apply, and 11 < 3
is TRUE
, because the strings are compared character-by-character.
eg
1234
==<*
124
by integer rules, int(124) is less than int(1234), but is BIGGER than string(1234), because 3
is smaller than 4
.
Try just
return $a->rank - $b->rank;
for the comparison function.
php > var_dump(strcmp('123', '1234'));
int(-1) <--"less than"
php > var_dump(strcmp('124', '1234'));
int(1) <-- "greater than"
php > var_dump(strcmp(123, 1234));
int(-1)
php > var_dump(strcmp(124, 1234));
int(1)
usort($results, function($a, $b)
{
if ($a->rank == $b->rank) {
return 0;
}
return ($a->rank < $b->rank) ? -1 : 1;
});
The following does the job, from http://php.net/manual/en/function.uasort.php
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.