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PHP selection sorting algorithm implementation code

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Release： 2016-07-25 08:54:15
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  2. //Select sort function function
  3. //Use references to reduce memory consumption
  4. //Organization: bbs.it-home.org
  5. function &select(&$arr){
  6. $count= count($arr);
  7. if($count>1){
  8. for($i=0;$i<$count-1;$i++){
  9. $k=$i;
  10. for($j=$i +1;$j<$count;$j++){
  11. if($arr[$j]<$arr[$k]){
  12. $k=$j;
  13. }
  14. }
  15. if($k!= $i){
  16. $tmp=$arr[$k];
  17. $arr[$k]=$arr[$i];
  18. $arr[$i]=$tmp;
  19. }
  20. }
  21. }
  22. return $ arr;
  23. }
  25. //Print array function
  26. function printArr(&$arr){
  27. echo "
    "; </li>
<li> print_r($arr); </li>
<li> echo "
    ";
  28. }
  30. //Start testing
  31. //Assign ten random values ​​to the array
  32. for($i=0;$i<10;$i++){
  33. $testArr[]=rand(10,100);
  34. }
  35. printArr(select($ testArr));
  36. ?>
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