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使用定界符heredoc输出九格宫表格
小丑0o鱼
Original
401 people have browsed it
  1. $html = <<<EOF
  2. {$htmls}
  3. EOF;
  4. function randColor (){
  5. $colors = array();
  6. for($i = 0;$i<6;$i++){
  7. $colors[] = dechex(rand(0,15));
  8. }
  9. return '#'.implode('',$colors);
  10. };
  11. function htmls($a,$b)
  12. {
  13. echo '<table>';
  14. for ($i=1; $i<=$a; $i++) {
  15. echo '<tr>';
  16. for ($j=1; $j<=$b; $j++) {
  17. echo '<td style="height: 50px; width: 50px; background-color:'.randColor().'">1</td>';
  18. }
  19. echo '</tr>';
  20. }
  21. echo '</table>';
  22. }
  23. $htmls = htmls(3,3);
  24. echo $html;
  25. 2.php实现具有简单功能的计算器
  26. // 通过POST取值
  27. $left = $_POST['left'] ?? 0;
  28. $right = $_POST['right'] ?? 0;
  29. $operator = $_POST['operator'];
  30. // 计算函数
  31. function total($a = 0, $b = 0, $opt = '+')
  32. {
  33. switch ($opt):
  34. case '+':
  35. return $a + $b;
  36. case '-':
  37. return $a - $b;
  38. case '*':
  39. return $a * $b;
  40. case '/':
  41. return $a / $b;
  42. endswitch;
  43. }
  44. // 调用函数并赋值
  45. $total = total($left, $right, $operator) ?? 0;
  46. ?>
  47. <form method="post" action="cales.php">
  48. <input type="text" name="left" value="<?php echo $left ?>">
  49. <select name="operator" id="">
  50. <option value="+" <?php if ($operator == '+'): echo "selected"; endif ?>>+</option>
  51. <option value="-" <?php if ($operator == '-'): echo "selected"; endif ?>>-</option>
  52. <option value="*" <?php if ($operator == '*'): echo "selected"; endif ?>>*</option>
  53. <option value="/" <?php if ($operator == '/'): echo "selected"; endif ?>>/</option>
  54. </select>
  55. <input type="text" name="right" value="<?php echo $right ?>">
  56. <button type="submit" ">计算</button>
  57. <input type="text" name="total" value="<?php echo $total ?>">
  58. </form>
Correction status:Uncorrected

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