Interpretation of PHP Bubble Sorting Techniques_PHP Tutorial

PHP bubble sort program file sort_bubble_up.php

1. < html>
2. < head>< title>PHP bubble sort demonstration< /title>< head>
3. < link rel="stylesheet" href="sort.css">
4. < body>
5. < h1>Bubble sorting demonstration< /h1>
6. < table cellpadding="5" cellspacing="1"
   border="0" align="center">
7. < ?php
8. //Randomly generate array
9. $arr=array();
10. echo '< tr>< td colspan ="10" class="title">
    Initial value< /td>< /tr>'; 🎜>
tr
11. >'; for($i=0
;$i
12. < 10;$i++){ $arr[$i]=rand(); echo "<
td
14. >$arr[$i]={$arr [$i]}< /td> "; } //Perform bubble sorting for($i
15. =
16. 9
;$i
17. >0;$i--){ echo '<
tr
18. >< td colspan ="10" class ="title">th'.(10-$i).'次< /td>< /tr>';  
19. for($j=0;$j< $i;$j++){  
20. if($arr[$j]< $arr[$j+1]){  
21. $tmp=$arr[$j];  
22. $arr[$j]=$arr[$j+1];  
23. $arr[$j+1]=$tmp;  
24. }   
25. echo '< tr>';  
26. for($k=0;$k< 10;$k++){  
27. switch($k){   
28. case $j : echo '< td class="base">'; break;  
29. case $j+1 : echo '< td class="light">'; break;  
30. default : echo '< td>';  
31. }  
32. echo "$arr[$k]={$arr[$k]}< /td>";  
33. }  
34. echo '< /tr>';  
35. }  
36. }
37. //Display sorting results
38. echo '< tr>< td colspan="10" class="title">Result< /td>< /tr>'; 🎜>
39. tr>'; for($i=
40. 0;$i < 10;$i++){ echo "<
41. td>$arr[$i]={$arr[$i]} < /td>"; } echo '
<
/tr
43. >'; >
44. <
45. /body>< /html>
46. PHP bubble sort style sheet file sort.css h1{text-align: center; color: blue;}table{font-size: 12px; font-family: arial; background-color: black; text-align: center;}td{background-color: white;}.base{background-color: #0FF;}.light{background-color: #0DD;}.title{background-color: # 3FF; text-align: center;} http://www.bkjia.com/PHPjc/445918.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/445918.html

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PHP bubble sort program file sort_bubble_up.php html head title PHP bubble sort method demonstration/title head link rel = stylesheet href = sort.css body h1 bubble sort method demonstration/h1 table cel...