<?php
/*function sortByLength($a,$b){
return strlen($b)-strlen($a);
}
$array = array("bbbbb", "dog", "cat", "aaa", "aaaa");
echo usort($array,'sortByLength');
// print_r($sorted);*/
$priorities = array(5, 8, 3, 7, 3);
usort($priorities, function($a, $b)
{
if ($a == $b)
{
echo "a ($a) is same priority as b ($b), keeping the same\n";
return 0;
}
else if ($a > $b)
{
echo "a ($a) is higher priority than b ($b), moving b down array\n";
return -1;
}
else {
echo "b ($b) is higher priority than a ($a), moving b up array\n";
return 1;
}
});
echo "Sorted priorities:\n";
var_dump($priorities);
b (8) is higher priority than a (5), moving b up array
b (8) is higher priority than a (3), moving b up array
a (5) is higher priority than b (3), moving b down array
b (7) is higher priority than a (3), moving b up array
b (7) is higher priority than a (5), moving b up array
a (8) is higher priority than b (7), moving b down array
a (3) is same priority as b (3), keeping the same
Sorted priorities:
array(5) {
[0]=>
int(8)
[1]=>
int(7)
[2]=>
int(5)
[3]=>
int(3)
[4]=>
int(3)
}
b (8) is higher priority than a (3), moving b up array
b (5) is higher priority than a (3), moving b up array
b (7) is higher priority than a (3), moving b up array
a (3) is same priority as b (3), keeping the same
a (8) is higher priority than b (3), moving b down array
b (8) is higher priority than a (7), moving b up array
b (8) is higher priority than a (5), moving b up array
b (8) is higher priority than a (3), moving b up array
a (5) is higher priority than b (3), moving b down array
a (7) is higher priority than b (5), moving b down array
Sorted priorities:
array(5) {
[0]=>
int(8)
[1]=>
int(7)
[2]=>
int(5)
[3]=>
int(3)
[4]=>
int(3)
}