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分支与循环、php模板语法与html混编技巧
Blackeye
Original
406 people have browsed it

1

  1. <!-- 1. 实例演示分支与循环 2. 实例演示php模板语法与html混编技巧 -->
  2. <?php
  4. $age = 28;
  5. $wait = $age-18;
  6. // 1. 单分支
  7. if($age >= 18) echo "welcome" . "<br/>";
  9. // 2. 双分支
  10. if($age > 18) echo "welcome".  "<br/>";
  11. else echo "wait" . $wait  ."year" . "<br/>";
  13. // 3. 多分支
  14. if($age>=18 && $age<25) echo "welcome" . "<br/>";
  15. elseif($age>=25) echo "Hi Dave" . "<br/>";
  16. else echo "wait" . $wait  ."year" . "<br/>";
  18. // 4. 多分支语法糖:switch
  19. switch(true){
  20.     case $age>=25:
  21.         echo "Hello Dave" . "<br/>"; 
  22.         break;
  23.     default:
  24.         echo "wait" . $wait ."year" . "<br/>";
  25. }
  28. // 循环
  29. // while
  30. $i = 0;
  31. while($i<5){
  32.     echo "有".$i."只小猪"."<br/>";
  33.     $i++;
  34. }
  35. echo "<hr>";
  38. // do-while
  39. $i = 0;
  40. do{
  41.     echo "有".$i."只小猪"."<br/>";
  42.     $i++;
  43. }while($i<5);
  44. echo "<hr>";
  47. // for
  48. for($i=0;$i<5;$i++){
  49.     echo "有".$i."只小猪"."<br/>";
  50. }

2

  1. <?php
  2.     $user_freshman=[
  3.         ["id"=>"0","name"=>"Frank","course"=>"java","score"=>"89"],
  4.         ["id"=>"1","name"=>"John","course"=>"java","score"=>"89"],
  5.         ["id"=>"2","name"=>"Jane","course"=>"java","score"=>"89"],
  6.         ["id"=>"3","name"=>"Dave","course"=>"php","score"=>"99"],
  7.         ["id"=>"4","name"=>"David","course"=>"C","score"=>"79"],
  8.     ];
  10.     $user_sophomore=[
  11.         ["id"=>"0","name"=>"Frank","course"=>"python","score"=>"89"],
  12.         ["id"=>"1","name"=>"John","course"=>"big data","score"=>"89"],
  13.         ["id"=>"2","name"=>"Jane","course"=>"graph","score"=>"89"],
  14.         ["id"=>"3","name"=>"Dave","course"=>"web","score"=>"99"],
  15.         ["id"=>"4","name"=>"David","course"=>"C++","score"=>"79"],
  16.     ];
  17. ?>
  19. <!DOCTYPE html>
  20. <html lang="en">
  21. <head>
  22.     <meta charset="UTF-8">
  23.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  24.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  25.     <title>php模板语法与html混编</title>
  26.     <style>
  27.         table {
  28.             border-collapse: collapse;
  29.             width: 360px;
  30.             text-align: center;
  31.         }
  33.         table th,
  34.         table td {
  35.             border: 1px solid #000;
  36.             padding: 5px;
  37.         }
  39.         table caption {
  40.             font-size: 1.3em;
  41.         }
  43.         table thead {
  44.             background-color: lightcyan;
  45.         }
  47.         .active {
  48.             color: red;
  49.         }
  50.     </style>
  51. </head>
  52. <body>
  53.     <table>
  54.         <caption>大一成绩表</caption>
  55.         <thead>
  56.             <tr>
  57.                 <th>学号</th>
  58.                 <th>姓名</th>
  59.                 <th>课程</th>
  60.                 <th>成绩</th>
  61.             </tr>
  62.         </thead>
  63.         <tbody>
  64.             <!-- 大一 -->
  65.             <!-- foreach -->
  66.             <?php
  67.             $list=null;
  68.                 foreach($user_freshman as $users){
  69.                     $table = "<tr>";
  70.                     $table.="<th>{$users["id"]}</th>";
  71.                     $table.="<th>{$users["name"]}</th>";
  72.                     $table.="<th>{$users["course"]}</th>";
  73.                     $table.="<th>{$users["score"]}</th>";
  74.                     $table.= "</tr>";
  75.                     $list.=$table;
  76.                 }
  77.                 echo $list
  78.             ?>
  79.         </tbody>
  80.     </table>
  84.     <table>
  85.         <caption>大二成绩表</caption>
  86.         <thead>
  87.             <tr>
  88.                 <th>学号</th>
  89.                 <th>姓名</th>
  90.                 <th>课程</th>
  91.                 <th>成绩</th>
  92.             </tr>
  93.         </thead>
  94.         <tbody>
  95.             <!-- 大二 -->
  96.             <?php foreach($user_sophomore as $users):?>
  97.                 <tr>
  98.                     <th><?= $users["id"]?></th>
  99.                     <th><?= $users["name"]?></th>
  100.                     <th><?= $users["course"]?></th>
  101.                     <th><?= $users["score"]?></th>
  102.                 </tr>
  103.             <?php endforeach ?>
  104.         </tbody>
  105.     </table>
  106. </body>
  107. </html>
Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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