comparing a, b
comparing b, c
comparing c, d
comparing k, l
comparing l, m
comparing m, n
comparing n, o
comparing a, k
comparing a, b
comparing b, k
comparing b, c
comparing c, k
comparing c, d
comparing d, k
array(4) {
[0]=>
array(2) {
[0]=>
string(1) "a"
[1]=>
int(10)
}
[1]=>
array(2) {
[0]=>
string(1) "b"
[1]=>
int(11)
}
[2]=>
array(2) {
[0]=>
string(1) "c"
[1]=>
int(12)
}
[3]=>
array(2) {
[0]=>
string(1) "d"
[1]=>
int(13)
}
}
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
comparing b, a
comparing b, c
comparing d, b
comparing c, b
comparing d, c
comparing m, l
comparing m, k
comparing m, n
comparing o, m
comparing n, m
comparing l, k
comparing o, n
comparing a, k
comparing a, b
comparing b, k
comparing b, c
comparing c, k
comparing c, d
comparing d, k
array(4) {
[0]=>
array(2) {
[0]=>
string(1) "a"
[1]=>
int(10)
}
[1]=>
array(2) {
[0]=>
string(1) "b"
[1]=>
int(11)
}
[2]=>
array(2) {
[0]=>
string(1) "c"
[1]=>
int(12)
}
[3]=>
array(2) {
[0]=>
string(1) "d"
[1]=>
int(13)
}
}