PHP array bubble Sort algorithm instance _php skill

An example of this article describes the PHP array bubble sort algorithm. Share to everyone for your reference, specific as follows:

<?php
/*@ Bubble sorting algorithm
*
/$array =array (5,45,22,11,32,28,35,56,17,21,92);
$len =count ($array);//compute array length
for ($i =0 $i < $len-1; $i + +) {//need to compare $len-1 wheel, each round needs to compare $len-1 for
  ($j =0; $j <$ Len-1 $j + +) {//need to compare $len-1 times, because the loop to the last number, there are no numbers to compare, so the loop to the penultimate number is just
   $k = $j +1;//to get the next number of the current number of subscript, we compare the array subscript is 0-1, respectively, 1-2,3-4 Numeric Pairs
   if ($array [$j]> $array [$k]) {//Compare two number, if the previous number is larger than the latter one, the order of two numbers is
     $t = $array [$j];
     $array [$j]= $array [$k];
     $array [$k]= $t;
   } After the first cycle is compared, the next round of comparison
  }
}
print_r ($array);
/* Understanding the key to bubble sorting is that its comparison results are large numbers back, in turn, the largest number, the second largest number, the third largest number ... By analogy/
?>

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