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Bug #5722 sort fails
Submitted: 2000-07-21 16:05 UTC Modified: 2000-07-21 16:09 UTC
From: biancardi at bware dot it Assigned:
Status: Closed Package: Scripting Engine problem
PHP Version: 4.0.1pl2 OS: SunOS sundev 5.7 Generic_106541-
Private report: No CVE-ID: None
View Developer Edit
 [2000-07-21 16:05 UTC] biancardi at bware dot it 
sort() sorts strings numerically. The following program
behaves differently on php4 (solaris) and php3 (linux):
<?
        $a = array("0", "1", "2", "01", "02", "03", "23","044");
        sort($a);
        while (list ($key, $value) = each ($a)) {
                echo "$key: $value\n";
        }
?>

php4.0.1.pl1 (on Solaris) results:
0: 0
1: 1
2: 01
3: 2
4: 02
5: 03
6: 23
7: 044

php3 (on Linux) results:
0: 0
1: 01
2: 02
3: 03
4: 044
5: 1
6: 2
7: 23

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 [2000-07-21 16:09 UTC] andrei at cvs dot php dot net 
Regular sort function tries to convert strings to numbers before sorting.
You can control the sort type by passing an optional argument
to sorting functions:

sort($array, SORT_REGULAR);
sort($array, SORT_NUMERIC);
sort($array, SORT_STRING);
 
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