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PHP Formula and syntax

 
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  #1
Jul 11th, 2009
PHP Syntax (Toggle Plain Text) 
  1. <html>
  2. <head>
  3. <title>Grade Calculator</title>
  4. </head>
  5. <?php
  6. ?>
  7. <body>
  8. <?php
  9. $grade = $_POST["Quiz1"] * 0.05 + $_POST["Mid-Term"] * 0.30 + $_POST["Quiz2"] * 0.05 + $_POST["AL1"] * 0.05 + $_POST["AL2"] * 0.05 + $_POST["Participation"] * 0.10 +  $_POST["Final"] * 0.40  ;
  10. ?>
  11. <?php
  12. echo "Grade Report: <br />";
  13. echo "<br />";
  14. ?>
  15. Your final grade percentage will be:  <?php echo $grade ;
  16. echo "<br />";
  17. {
  18. if ($grade > 90.9)
  19. 	echo "Your final grade for the course will be: A+ <br />";
  20. elseif ($grade > 85.9)
  21. 	echo "Your final grade for the course will be: A  <br />";
  22. elseif ($grade > 79)
  23. 	echo "Your final grade for the course will be: A-  <br />";
  24. elseif ($grade > 76.9)
  25. 	echo "Your final grade for the course will be: B+  <br />";
  26. elseif ($grade >71.9)
  27. 	echo "Your final grade for the course will be: B  <br />";
  28. elseif ($grade > 69.9)
  29. 	echo "Your final grade for the course will be: B-  <br />";
  30. elseif ($grade > 65.9)
  31. 	echo "Your final grade for the course will be: C+  <br />";
  32. elseif ($grade > 59.9)
  33. 	echo "Your final grade for the course will be: C  <br />";
  34. elseif ($grade > 54.9)
  35. 	echo "Your final grade for the course will be: C-  <br />";
  36. elseif ($grade > 49.9)
  37. 	echo "Your final grade for the course will be: Pass  <br />";
  38. else
  39. 	echo "Your final grade for the course will be: Fail  <br />";
  40.  
  41. }
  42.  
  43. ?>
  44. </body>
  45. </html>

Above is the code I have used for my php program which is linked to a html file, this program calculates grades, everything is correct, except for the fact that If the user selects the option "not done yet / excused", it must be able to calculate without taking the % of the whatever quzi, mid-term, etc that that they missed, ie if they have only taken 50% of the available marks in the course, it must be able to just calculate that.

Could someone help me on this, any help is greatly appreciated

Thanks,

Tony
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Re: PHP Formula and syntax

 
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  #2
Jul 11th, 2009
Something simple and straightfowrd...

PHP Syntax (Toggle Plain Text) 
  1. $grade = 0;
  2. if ($_POST['QUIZ1'] >= 0 && $_POST['QUIZ1'] <= 100)
  3. 	$grade = $grade + $_POST['QUIZ1'] * 0.05;
  4. if ($_POST['Mid-Term'] >= 0 && ($_POST['Mid-Term'] <= 100))
  5. 	$grade = $grade + $_POST['Mid-Term'] * 0.30;
  6. //continue code like this until you've included all the scores
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Re: PHP Formula and syntax

 
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  #3
Jul 11th, 2009
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Originally Posted by paradox814 View Post
Something simple and straightfowrd...

PHP Syntax (Toggle Plain Text) 
  1. $grade = 0;
  2. if ($_POST['QUIZ1'] >= 0 && $_POST['QUIZ1'] <= 100)
  3. 	$grade = $grade + $_POST['QUIZ1'] * 0.05;
  4. if ($_POST['Mid-Term'] >= 0 && ($_POST['Mid-Term'] <= 100))
  5. 	$grade = $grade + $_POST['Mid-Term'] * 0.30;
  6. //continue code like this until you've included all the scores
Hi, I tried using ur code, but it still shows 51.45%, given that, for 2 inputs, al2 and final, i entered "not done yet / excused:", because in my prof gradebook, it calculates at 91.5%.......Below is the code i implemented:

PHP Syntax (Toggle Plain Text) 
  1. <html>
  2. <head>
  3. <link rel="stylesheet" type="text/css" href="http://96.48.39.33/student13/bala2.css" />
  4. <title>Grade Calculator</title>
  5. </head>
  6. <?php
  7. ?>
  8. <body>
  9. <?php
  10. $grade = 0;
  11. if ($_POST['Quiz1'] >= 0 && $_POST['Quiz1'] <= 100)
  12. 	$grade = $grade + $_POST['Quiz1'] * 0.05;
  13. if ($_POST['Mid-Term'] >= 0 && ($_POST['Mid-Term'] <= 100))
  14. 	$grade = $grade + $_POST['Mid-Term'] * 0.30;
  15. if ($_POST['Quiz2'] >= 0 && ($_POST['Quiz2'] <= 100))
  16. 	$grade = $grade + $_POST['Quiz2'] * 0.05;
  17. if ($_POST['AL1'] >= 0 && ($_POST['AL1'] <= 100))
  18. 	$grade = $grade + $_POST['AL1'] * 0.05;
  19. if ($_POST['AL2'] >= 0 && ($_POST['AL2'] <= 100))
  20. 	$grade = $grade + $_POST['AL2'] * 0.05;
  21. if ($_POST['Participation'] >= 0 && ($_POST['Participation'] <= 100))
  22. 	$grade = $grade + $_POST['Participation'] * 0.10;
  23. if ($_POST['Final'] >= 0 && ($_POST['Final'] <= 100))
  24. 	$grade = $grade + $_POST['Final'] * 0.40;
  25. ?>
  26. <?php
  27. echo "Grade Report: <br />";
  28. echo "<br />";
  29. ?>
  30. Your final grade percentage will be:  <?php echo $grade . "%";
  31. echo "<br />";
  32. {
  33. if ($grade > 90.9)
  34. 	echo "Your final grade for the course will be: A+ <br />";
  35. elseif ($grade > 85.9)
  36. 	echo "Your final grade for the course will be: A  <br />";
  37. elseif ($grade > 79)
  38. 	echo "Your final grade for the course will be: A-  <br />";
  39. elseif ($grade > 76.9)
  40. 	echo "Your final grade for the course will be: B+  <br />";
  41. elseif ($grade >71.9)
  42. 	echo "Your final grade for the course will be: B  <br />";
  43. elseif ($grade > 69.9)
  44. 	echo "Your final grade for the course will be: B-  <br />";
  45. elseif ($grade > 65.9)
  46. 	echo "Your final grade for the course will be: C+  <br />";
  47. elseif ($grade > 59.9)
  48. 	echo "Your final grade for the course will be: C  <br />";
  49. elseif ($grade > 54.9)
  50. 	echo "Your final grade for the course will be: C-  <br />";
  51. elseif ($grade > 49.9)
  52. 	echo "Your final grade for the course will be: P  <br />";
  53. else
  54. 	echo "Your final grade for the course will be: F  <br />";
  55.  
  56. }
  57.  
  58. ?>
  59. </body>
  60. </html>

Thanks in advance

Tony
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Re: PHP Formula and syntax

 
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  #4
Jul 11th, 2009
It looks like you're calculating them to have full credit if they haven't taken the exam, if that's the case...
PHP Syntax (Toggle Plain Text) 
  1. if ($_POST['Quiz1'] >= 0 && $_POST['Quiz1'] <= 100)
  2.    $grade = $grade + $_POST['Quiz1'] * 0.05;
  3. else
  4.   $grade = 5;

But even easier than this is when you set the html form, set the html value="100" so you wont have to worry about the else statment.
for example
PHP Syntax (Toggle Plain Text) 
  1. echo "\n".'<option value="100">Not Done Yet / Excused</option>';
  2. for ($i=100; $i>-1; $i--) {
  3.   echo "\n".'<option value="'.$i.'">'.$i.'%</option>';
  4. }
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Re: PHP Formula and syntax

 
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  #5
Jul 11th, 2009
Oops, the
$grade = 5;
is supposed to
$grade = $grade + 5;
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Re: PHP Formula and syntax

 
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  #6
Jul 11th, 2009
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Originally Posted by paradox814 View Post
Oops, the
$grade = 5;
is supposed to
$grade = $grade + 5;
Sorry to trouble you, but it still does not seem to work, my code:

PHP Syntax (Toggle Plain Text) 
  1. <!--
  2. // Group members:Bala, Andre Tan, Leo Tse
  3. // Date: Thursday July 11 2009
  4. // Purpose: Write a PHP program that can calculate grades for students of CSCI 110
  5. -->
  6. <html>
  7. <head>
  8. <link rel="stylesheet" type="text/css" href="http://96.48.39.33/student13/bala2.css" />
  9. <title>Grade Calculator</title>
  10. </head>
  11. <?php
  12. ?>
  13. <body>
  14. <?php
  15. $grade = 0;
  16. if ($_POST['Quiz1'] >= 0 && $_POST['Quiz1'] <= 100)
  17. 	$grade = $grade + $_POST['Quiz1'] * 0.05;
  18. else
  19.   	$grade = $grade + 5; 
  20. if ($_POST['Mid-Term'] >= 0 && ($_POST['Mid-Term'] <= 100))
  21. 	$grade = $grade + $_POST['Mid-Term'] * 0.30;
  22. else
  23.   	$grade = $grade + 30; 
  24. if ($_POST['Quiz2'] >= 0 && ($_POST['Quiz2'] <= 100))
  25. 	$grade = $grade + $_POST['Quiz2'] * 0.05;
  26. else
  27.   	$grade = $grade + 5; 
  28. if ($_POST['AL1'] >= 0 && ($_POST['AL1'] <= 100))
  29. 	$grade = $grade + $_POST['AL1'] * 0.05;
  30. else
  31.    	$grade = $grade + 5; 
  32. if ($_POST['AL2'] >= 0 && ($_POST['AL2'] <= 100))
  33. 	$grade = $grade + $_POST['AL2'] * 0.05;
  34. else
  35.   	$grade = $grade + 5; 
  36. if ($_POST['Participation'] >= 0 && ($_POST['Participation'] <= 100))
  37. 	$grade = $grade + $_POST['Participation'] * 0.10;
  38. else
  39.  	$grade = $grade + 10; 
  40. if ($_POST['Final'] >= 0 && ($_POST['Final'] <= 100))
  41. 	$grade = $grade + $_POST['Final'] * 0.40;
  42. else
  43.   	$grade = $grade + 40; 
  44. ?>
  45. <?php
  46. echo "Grade Report: <br />";
  47. echo "<br />";
  48. ?>
  49. Your final grade percentage will be:  <?php echo $grade . "%";
  50. echo "<br />";
  51. {
  52. if ($grade > 90.9)
  53. 	echo "Your final grade for the course will be: A+ <br />";
  54. elseif ($grade > 85.9)
  55. 	echo "Your final grade for the course will be: A  <br />";
  56. elseif ($grade > 79)
  57. 	echo "Your final grade for the course will be: A-  <br />";
  58. elseif ($grade > 76.9)
  59. 	echo "Your final grade for the course will be: B+  <br />";
  60. elseif ($grade >71.9)
  61. 	echo "Your final grade for the course will be: B  <br />";
  62. elseif ($grade > 69.9)
  63. 	echo "Your final grade for the course will be: B-  <br />";
  64. elseif ($grade > 65.9)
  65. 	echo "Your final grade for the course will be: C+  <br />";
  66. elseif ($grade > 59.9)
  67. 	echo "Your final grade for the course will be: C  <br />";
  68. elseif ($grade > 54.9)
  69. 	echo "Your final grade for the course will be: C-  <br />";
  70. elseif ($grade > 49.9)
  71. 	echo "Your final grade for the course will be: P  <br />";
  72. else
  73. 	echo "Your final grade for the course will be: F  <br />";
  74.  
  75. }
  76.  
  77. ?>
  78. </body>
  79. </html>

Thanks once again,
Tony
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Re: PHP Formula and syntax

 
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  #7
Jul 11th, 2009
PHP Syntax (Toggle Plain Text) 
  1. <html>
  2. <head>
  3. <link rel="stylesheet" type="text/css" href="http://96.48.39.33/student13/bala2.css" />
  4. <title>Grade Calculator</title>
  5. </head>
  6. <body>
  7. <?php
  8. //QUICK TEST VARIABLES 
  9. $_POST['Quiz1'] = '100';
  10. $_POST['Quiz2'] = '100';
  11. $_POST['Mid-Term'] = '100';
  12. $_POST['AL1'] = '100';
  13. $_POST['AL2'] = '100';
  14. $_POST['Participation'] = '100';
  15. $_POST['Final'] = '100';
  16.  
  17. //default answer will be 0%
  18. $grade=0;
  19. //calculate $grade percentage from form input (or from quick test variables)
  20. $grade=($_POST['Quiz1'] >= 0 && $_POST['Quiz1'] <= 100) ? $grade + ($_POST['Quiz1'] * 0.05) : $grade + 5; 
  21. $grade=($_POST['Mid-Term'] >= 0 && $_POST['Mid-Term'] <= 100) ? $grade + ($_POST['Mid-Term'] * 0.30) : $grade + 30; 
  22. $grade=($_POST['Quiz2'] >= 0 && $_POST['Quiz2'] <= 100) ? $grade + ($_POST['Quiz2'] * 0.05) : $grade + 5;
  23. $grade=($_POST['AL1'] >= 0 && $_POST['AL1'] <= 100) ? $grade + ($_POST['AL1'] * 0.05) : $grade + 5; 
  24. $grade=($_POST['AL2'] >= 0 && $_POST['AL2'] <= 100) ? $grade + ($_POST['AL2'] * 0.05) : $grade + 5; 
  25. $grade=($_POST['Participation'] >= 0 && $_POST['Participation'] <= 100) ? $grade + ($_POST['Participation'] * 0.10) : $grade + 10; 
  26. $grade=($_POST['Final'] >= 0 && $_POST['Final'] <= 100) ? $grade + ($_POST['Final'] * 0.40) : $grade + 40; 
  27.  
  28. //change these as you need
  29. $pc_array= array(90.9,85.9,79,76.9,71.9,69.9,65.9,59.9,54.9,49.9);
  30. $grade_array=array('A+','A','A-','B+','B','B-','C+','C','C-','P');
  31. $i = 0;
  32. //default answer will be FAIL
  33. $print_grade = 'F';
  34. while($i < count($pc_array)){
  35. 	if($grade > $pc_array[$i]){
  36. 		$print_grade = $grade_array[$i];
  37. 		break;
  38. 	}
  39. 	$i = $i + 1;
  40. }
  41. // output
  42. echo "<h1>Grade Report: </h1>\n<p>Your final grade percentage will be: {$grade}%</p>\n<p>Your final grade for the course will be: {$print_grade}</p>";
  43.  
  44. ?>
  45. </body>
  46. </html>

I tried the above code and it works fine. The only thing I can think of is that you've mis-named one of your form inputs, so that the $_POST['variable'] isn't picking it up.
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Re: PHP Formula and syntax

 
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  #8
Jul 11th, 2009
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Originally Posted by ardav View Post
PHP Syntax (Toggle Plain Text) 
  1. <html>
  2. <head>
  3. <link rel="stylesheet" type="text/css" href="http://96.48.39.33/student13/bala2.css" />
  4. <title>Grade Calculator</title>
  5. </head>
  6. <body>
  7. <?php
  8. //QUICK TEST VARIABLES 
  9. $_POST['Quiz1'] = '100';
  10. $_POST['Quiz2'] = '100';
  11. $_POST['Mid-Term'] = '100';
  12. $_POST['AL1'] = '100';
  13. $_POST['AL2'] = '100';
  14. $_POST['Participation'] = '100';
  15. $_POST['Final'] = '100';
  16.  
  17. //default answer will be 0%
  18. $grade=0;
  19. //calculate $grade percentage from form input (or from quick test variables)
  20. $grade=($_POST['Quiz1'] >= 0 && $_POST['Quiz1'] <= 100) ? $grade + ($_POST['Quiz1'] * 0.05) : $grade + 5; 
  21. $grade=($_POST['Mid-Term'] >= 0 && $_POST['Mid-Term'] <= 100) ? $grade + ($_POST['Mid-Term'] * 0.30) : $grade + 30; 
  22. $grade=($_POST['Quiz2'] >= 0 && $_POST['Quiz2'] <= 100) ? $grade + ($_POST['Quiz2'] * 0.05) : $grade + 5;
  23. $grade=($_POST['AL1'] >= 0 && $_POST['AL1'] <= 100) ? $grade + ($_POST['AL1'] * 0.05) : $grade + 5; 
  24. $grade=($_POST['AL2'] >= 0 && $_POST['AL2'] <= 100) ? $grade + ($_POST['AL2'] * 0.05) : $grade + 5; 
  25. $grade=($_POST['Participation'] >= 0 && $_POST['Participation'] <= 100) ? $grade + ($_POST['Participation'] * 0.10) : $grade + 10; 
  26. $grade=($_POST['Final'] >= 0 && $_POST['Final'] <= 100) ? $grade + ($_POST['Final'] * 0.40) : $grade + 40; 
  27.  
  28. //change these as you need
  29. $pc_array= array(90.9,85.9,79,76.9,71.9,69.9,65.9,59.9,54.9,49.9);
  30. $grade_array=array('A+','A','A-','B+','B','B-','C+','C','C-','P');
  31. $i = 0;
  32. //default answer will be FAIL
  33. $print_grade = 'F';
  34. while($i < count($pc_array)){
  35. 	if($grade > $pc_array[$i]){
  36. 		$print_grade = $grade_array[$i];
  37. 		break;
  38. 	}
  39. 	$i = $i + 1;
  40. }
  41. // output
  42. echo "<h1>Grade Report: </h1>\n<p>Your final grade percentage will be: {$grade}%</p>\n<p>Your final grade for the course will be: {$print_grade}</p>";
  43.  
  44. ?>
  45. </body>
  46. </html>

I tried the above code and it works fine. The only thing I can think of is that you've mis-named one of your form inputs, so that the $_POST['variable'] isn't picking it up.
That's strange, becos it does not work properly with mine, it keeps calculating everything at 100%....Below is my html code:
PHP Syntax (Toggle Plain Text) 
  1. <html>
  2. <head>
  3. <link rel="stylesheet" type="text/css" href="http://96.48.39.33/student13/bala2.css" />
  4. <title> Grade Calculator</title>
  5. </head>
  6. <body>
  7. <h1>CSCI 110 Grade Calculator</h1>
  8. <hr />
  9. <h4>Select your Quiz 1 Score: </h4>
  10. <form method = "post" action = "form3.php">
  11. <select name = "Quiz1">
  12. <option>not done yet / excused</option>
  13. <option>0</option>
  14. <option>1</option>
  15. <option>2</option>
  16. <option>3</option>
  17. <option>4</option>
  18. <option>5</option>
  19. <option>6</option>
  20. <option>7</option>
  21. <option>8</option>
  22. <option>9</option>
  23. <option>10</option>
  24. <option>11</option>
  25. <option>12</option>
  26. <option>13</option>
  27. <option>14</option>
  28. <option>15</option>
  29. <option>16</option>
  30. <option>17</option>
  31. <option>18</option>
  32. <option>19</option>
  33. <option>20</option>
  34. <option>21</option>
  35. <option>22</option>
  36. <option>23</option>
  37. <option>24</option>
  38. <option>25</option>
  39. <option>26</option>
  40. <option>27</option>
  41. <option>28</option>
  42. <option>29</option>
  43. <option>30</option>
  44. <option>31</option>
  45. <option>32</option>
  46. <option>33</option>
  47. <option>34</option>
  48. <option>35</option>
  49. <option>36</option>
  50. <option>37</option>
  51. <option>38</option>
  52. <option>39</option>
  53. <option>40</option>
  54. <option>41</option>
  55. <option>42</option>
  56. <option>43</option>
  57. <option>44</option>
  58. <option>45</option>
  59. <option>46</option>
  60. <option>47</option>
  61. <option>48</option>
  62. <option>49</option>
  63. <option>50</option>
  64. <option>51</option>
  65. <option>52</option>
  66. <option>53</option>
  67. <option>54</option>
  68. <option>55</option>
  69. <option>56</option>
  70. <option>57</option>
  71. <option>58</option>
  72. <option>59</option>
  73. <option>60</option>
  74. <option>61</option>
  75. <option>62</option>
  76. <option>63</option>
  77. <option>64</option>
  78. <option>65</option>
  79. <option>66</option>
  80. <option>67</option>
  81. <option>68</option>
  82. <option>69</option>
  83. <option>70</option>
  84. <option>71</option>
  85. <option>72</option>
  86. <option>73</option>
  87. <option>74</option>
  88. <option>75</option>
  89. <option>76</option>
  90. <option>77</option>
  91. <option>78</option>
  92. <option>79</option>
  93. <option>80</option>
  94. <option>81</option>
  95. <option>82</option>
  96. <option>83</option>
  97. <option>84</option>
  98. <option>85</option>
  99. <option>86</option>
  100. <option>87</option>
  101. <option>88</option>
  102. <option>89</option>
  103. <option>90</option>
  104. <option>91</option>
  105. <option>92</option>
  106. <option>93</option>
  107. <option>94</option>
  108. <option>95</option>
  109. <option>96</option>
  110. <option>97</option>
  111. <option>98</option>
  112. <option>99</option>
  113. <option>100</option>
  114. </select>
  115. <h4>Select your Mid-Term Score:</h4>
  116. <form method = "post" action = "form3.php">
  117. <select name = "Mid-Term">
  118. <option>not done yet / excused</option>
  119. <option>0</option>
  120. <option>1</option>
  121. <option>2</option>
  122. <option>3</option>
  123. <option>4</option>
  124. <option>5</option>
  125. <option>6</option>
  126. <option>7</option>
  127. <option>8</option>
  128. <option>9</option>
  129. <option>10</option>
  130. <option>11</option>
  131. <option>12</option>
  132. <option>13</option>
  133. <option>14</option>
  134. <option>15</option>
  135. <option>16</option>
  136. <option>17</option>
  137. <option>18</option>
  138. <option>19</option>
  139. <option>20</option>
  140. <option>21</option>
  141. <option>22</option>
  142. <option>23</option>
  143. <option>24</option>
  144. <option>25</option>
  145. <option>26</option>
  146. <option>27</option>
  147. <option>28</option>
  148. <option>29</option>
  149. <option>30</option>
  150. <option>31</option>
  151. <option>32</option>
  152. <option>33</option>
  153. <option>34</option>
  154. <option>35</option>
  155. <option>36</option>
  156. <option>37</option>
  157. <option>38</option>
  158. <option>39</option>
  159. <option>40</option>
  160. <option>41</option>
  161. <option>42</option>
  162. <option>43</option>
  163. <option>44</option>
  164. <option>45</option>
  165. <option>46</option>
  166. <option>47</option>
  167. <option>48</option>
  168. <option>49</option>
  169. <option>50</option>
  170. <option>51</option>
  171. <option>52</option>
  172. <option>53</option>
  173. <option>54</option>
  174. <option>55</option>
  175. <option>56</option>
  176. <option>57</option>
  177. <option>58</option>
  178. <option>59</option>
  179. <option>60</option>
  180. <option>61</option>
  181. <option>62</option>
  182. <option>63</option>
  183. <option>64</option>
  184. <option>65</option>
  185. <option>66</option>
  186. <option>67</option>
  187. <option>68</option>
  188. <option>69</option>
  189. <option>70</option>
  190. <option>71</option>
  191. <option>72</option>
  192. <option>73</option>
  193. <option>74</option>
  194. <option>75</option>
  195. <option>76</option>
  196. <option>77</option>
  197. <option>78</option>
  198. <option>79</option>
  199. <option>80</option>
  200. <option>81</option>
  201. <option>82</option>
  202. <option>83</option>
  203. <option>84</option>
  204. <option>85</option>
  205. <option>86</option>
  206. <option>87</option>
  207. <option>88</option>
  208. <option>89</option>
  209. <option>90</option>
  210. <option>91</option>
  211. <option>92</option>
  212. <option>93</option>
  213. <option>94</option>
  214. <option>95</option>
  215. <option>96</option>
  216. <option>97</option>
  217. <option>98</option>
  218. <option>99</option>
  219. <option>100</option>
  220. </select>
  221. <h4>Select your Quiz 2 Score:</h4>
  222. <form method = "post" action = "form3.php">
  223. <select name = "Quiz2">
  224. <option>not done yet / excused</option>
  225. <option>0</option>
  226. <option>1</option>
  227. <option>2</option>
  228. <option>3</option>
  229. <option>4</option>
  230. <option>5</option>
  231. <option>6</option>
  232. <option>7</option>
  233. <option>8</option>
  234. <option>9</option>
  235. <option>10</option>
  236. <option>11</option>
  237. <option>12</option>
  238. <option>13</option>
  239. <option>14</option>
  240. <option>15</option>
  241. <option>16</option>
  242. <option>17</option>
  243. <option>18</option>
  244. <option>19</option>
  245. <option>20</option>
  246. <option>21</option>
  247. <option>22</option>
  248. <option>23</option>
  249. <option>24</option>
  250. <option>25</option>
  251. <option>26</option>
  252. <option>27</option>
  253. <option>28</option>
  254. <option>29</option>
  255. <option>30</option>
  256. <option>31</option>
  257. <option>32</option>
  258. <option>33</option>
  259. <option>34</option>
  260. <option>35</option>
  261. <option>36</option>
  262. <option>37</option>
  263. <option>38</option>
  264. <option>39</option>
  265. <option>40</option>
  266. <option>41</option>
  267. <option>42</option>
  268. <option>43</option>
  269. <option>44</option>
  270. <option>45</option>
  271. <option>46</option>
  272. <option>47</option>
  273. <option>48</option>
  274. <option>49</option>
  275. <option>50</option>
  276. <option>51</option>
  277. <option>52</option>
  278. <option>53</option>
  279. <option>54</option>
  280. <option>55</option>
  281. <option>56</option>
  282. <option>57</option>
  283. <option>58</option>
  284. <option>59</option>
  285. <option>60</option>
  286. <option>61</option>
  287. <option>62</option>
  288. <option>63</option>
  289. <option>64</option>
  290. <option>65</option>
  291. <option>66</option>
  292. <option>67</option>
  293. <option>68</option>
  294. <option>69</option>
  295. <option>70</option>
  296. <option>71</option>
  297. <option>72</option>
  298. <option>73</option>
  299. <option>74</option>
  300. <option>75</option>
  301. <option>76</option>
  302. <option>77</option>
  303. <option>78</option>
  304. <option>79</option>
  305. <option>80</option>
  306. <option>81</option>
  307. <option>82</option>
  308. <option>83</option>
  309. <option>84</option>
  310. <option>85</option>
  311. <option>86</option>
  312. <option>87</option>
  313. <option>88</option>
  314. <option>89</option>
  315. <option>90</option>
  316. <option>91</option>
  317. <option>92</option>
  318. <option>93</option>
  319. <option>94</option>
  320. <option>95</option>
  321. <option>96</option>
  322. <option>97</option>
  323. <option>98</option>
  324. <option>99</option>
  325. <option>100</option>
  326. </select>
  327. <h4>Select your Accessed Lab 1 Score:</h4>
  328. <form method = "post" action = "form3.php">
  329. <select name = "AL1">
  330. <option>not done yet / excused</option>
  331. <option>0</option>
  332. <option>1</option>
  333. <option>2</option>
  334. <option>3</option>
  335. <option>4</option>
  336. <option>5</option>
  337. <option>6</option>
  338. <option>7</option>
  339. <option>8</option>
  340. <option>9</option>
  341. <option>10</option>
  342. <option>11</option>
  343. <option>12</option>
  344. <option>13</option>
  345. <option>14</option>
  346. <option>15</option>
  347. <option>16</option>
  348. <option>17</option>
  349. <option>18</option>
  350. <option>19</option>
  351. <option>20</option>
  352. <option>21</option>
  353. <option>22</option>
  354. <option>23</option>
  355. <option>24</option>
  356. <option>25</option>
  357. <option>26</option>
  358. <option>27</option>
  359. <option>28</option>
  360. <option>29</option>
  361. <option>30</option>
  362. <option>31</option>
  363. <option>32</option>
  364. <option>33</option>
  365. <option>34</option>
  366. <option>35</option>
  367. <option>36</option>
  368. <option>37</option>
  369. <option>38</option>
  370. <option>39</option>
  371. <option>40</option>
  372. <option>41</option>
  373. <option>42</option>
  374. <option>43</option>
  375. <option>44</option>
  376. <option>45</option>
  377. <option>46</option>
  378. <option>47</option>
  379. <option>48</option>
  380. <option>49</option>
  381. <option>50</option>
  382. <option>51</option>
  383. <option>52</option>
  384. <option>53</option>
  385. <option>54</option>
  386. <option>55</option>
  387. <option>56</option>
  388. <option>57</option>
  389. <option>58</option>
  390. <option>59</option>
  391. <option>60</option>
  392. <option>61</option>
  393. <option>62</option>
  394. <option>63</option>
  395. <option>64</option>
  396. <option>65</option>
  397. <option>66</option>
  398. <option>67</option>
  399. <option>68</option>
  400. <option>69</option>
  401. <option>70</option>
  402. <option>71</option>
  403. <option>72</option>
  404. <option>73</option>
  405. <option>74</option>
  406. <option>75</option>
  407. <option>76</option>
  408. <option>77</option>
  409. <option>78</option>
  410. <option>79</option>
  411. <option>80</option>
  412. <option>81</option>
  413. <option>82</option>
  414. <option>83</option>
  415. <option>84</option>
  416. <option>85</option>
  417. <option>86</option>
  418. <option>87</option>
  419. <option>88</option>
  420. <option>89</option>
  421. <option>90</option>
  422. <option>91</option>
  423. <option>92</option>
  424. <option>93</option>
  425. <option>94</option>
  426. <option>95</option>
  427. <option>96</option>
  428. <option>97</option>
  429. <option>98</option>
  430. <option>99</option>
  431. <option>100</option>
  432. </select>
  433. <h4>Select your Accessed Lab 2 Score:</h4>
  434. <form method = "post" action = "form3.php">
  435. <select name = "AL2">
  436. <option>not done yet / excused</option>
  437. <option>0</option>
  438. <option>1</option>
  439. <option>2</option>
  440. <option>3</option>
  441. <option>4</option>
  442. <option>5</option>
  443. <option>6</option>
  444. <option>7</option>
  445. <option>8</option>
  446. <option>9</option>
  447. <option>10</option>
  448. <option>11</option>
  449. <option>12</option>
  450. <option>13</option>
  451. <option>14</option>
  452. <option>15</option>
  453. <option>16</option>
  454. <option>17</option>
  455. <option>18</option>
  456. <option>19</option>
  457. <option>20</option>
  458. <option>21</option>
  459. <option>22</option>
  460. <option>23</option>
  461. <option>24</option>
  462. <option>25</option>
  463. <option>26</option>
  464. <option>27</option>
  465. <option>28</option>
  466. <option>29</option>
  467. <option>30</option>
  468. <option>31</option>
  469. <option>32</option>
  470. <option>33</option>
  471. <option>34</option>
  472. <option>35</option>
  473. <option>36</option>
  474. <option>37</option>
  475. <option>38</option>
  476. <option>39</option>
  477. <option>40</option>
  478. <option>41</option>
  479. <option>42</option>
  480. <option>43</option>
  481. <option>44</option>
  482. <option>45</option>
  483. <option>46</option>
  484. <option>47</option>
  485. <option>48</option>
  486. <option>49</option>
  487. <option>50</option>
  488. <option>51</option>
  489. <option>52</option>
  490. <option>53</option>
  491. <option>54</option>
  492. <option>55</option>
  493. <option>56</option>
  494. <option>57</option>
  495. <option>58</option>
  496. <option>59</option>
  497. <option>60</option>
  498. <option>61</option>
  499. <option>62</option>
  500. <option>63</option>
  501. <option>64</option>
  502. <option>65</option>
  503. <option>66</option>
  504. <option>67</option>
  505. <option>68</option>
  506. <option>69</option>
  507. <option>70</option>
  508. <option>71</option>
  509. <option>72</option>
  510. <option>73</option>
  511. <option>74</option>
  512. <option>75</option>
  513. <option>76</option>
  514. <option>77</option>
  515. <option>78</option>
  516. <option>79</option>
  517. <option>80</option>
  518. <option>81</option>
  519. <option>82</option>
  520. <option>83</option>
  521. <option>84</option>
  522. <option>85</option>
  523. <option>86</option>
  524. <option>87</option>
  525. <option>88</option>
  526. <option>89</option>
  527. <option>90</option>
  528. <option>91</option>
  529. <option>92</option>
  530. <option>93</option>
  531. <option>94</option>
  532. <option>95</option>
  533. <option>96</option>
  534. <option>97</option>
  535. <option>98</option>
  536. <option>99</option>
  537. <option>100</option>
  538. </select>
  539. <h4>Select your Participation Score:</h4>
  540. <form method = "post" action = "form3.php">
  541. <select name = "Participation">
  542. <option>not done yet / excused</option>
  543. <option>0</option>
  544. <option>1</option>
  545. <option>2</option>
  546. <option>3</option>
  547. <option>4</option>
  548. <option>5</option>
  549. <option>6</option>
  550. <option>7</option>
  551. <option>8</option>
  552. <option>9</option>
  553. <option>10</option>
  554. <option>11</option>
  555. <option>12</option>
  556. <option>13</option>
  557. <option>14</option>
  558. <option>15</option>
  559. <option>16</option>
  560. <option>17</option>
  561. <option>18</option>
  562. <option>19</option>
  563. <option>20</option>
  564. <option>21</option>
  565. <option>22</option>
  566. <option>23</option>
  567. <option>24</option>
  568. <option>25</option>
  569. <option>26</option>
  570. <option>27</option>
  571. <option>28</option>
  572. <option>29</option>
  573. <option>30</option>
  574. <option>31</option>
  575. <option>32</option>
  576. <option>33</option>
  577. <option>34</option>
  578. <option>35</option>
  579. <option>36</option>
  580. <option>37</option>
  581. <option>38</option>
  582. <option>39</option>
  583. <option>40</option>
  584. <option>41</option>
  585. <option>42</option>
  586. <option>43</option>
  587. <option>44</option>
  588. <option>45</option>
  589. <option>46</option>
  590. <option>47</option>
  591. <option>48</option>
  592. <option>49</option>
  593. <option>50</option>
  594. <option>51</option>
  595. <option>52</option>
  596. <option>53</option>
  597. <option>54</option>
  598. <option>55</option>
  599. <option>56</option>
  600. <option>57</option>
  601. <option>58</option>
  602. <option>59</option>
  603. <option>60</option>
  604. <option>61</option>
  605. <option>62</option>
  606. <option>63</option>
  607. <option>64</option>
  608. <option>65</option>
  609. <option>66</option>
  610. <option>67</option>
  611. <option>68</option>
  612. <option>69</option>
  613. <option>70</option>
  614. <option>71</option>
  615. <option>72</option>
  616. <option>73</option>
  617. <option>74</option>
  618. <option>75</option>
  619. <option>76</option>
  620. <option>77</option>
  621. <option>78</option>
  622. <option>79</option>
  623. <option>80</option>
  624. <option>81</option>
  625. <option>82</option>
  626. <option>83</option>
  627. <option>84</option>
  628. <option>85</option>
  629. <option>86</option>
  630. <option>87</option>
  631. <option>88</option>
  632. <option>89</option>
  633. <option>90</option>
  634. <option>91</option>
  635. <option>92</option>
  636. <option>93</option>
  637. <option>94</option>
  638. <option>95</option>
  639. <option>96</option>
  640. <option>97</option>
  641. <option>98</option>
  642. <option>99</option>
  643. <option>100</option>
  644. </select>
  645. <h4>Select your Predicted Einal Exam score:</h4>
  646. <form method = "post" action = "form3.php">
  647. <select name = "Final">
  648. <option>not done yet / excused</option>
  649. <option>0</option>
  650. <option>1</option>
  651. <option>2</option>
  652. <option>3</option>
  653. <option>4</option>
  654. <option>5</option>
  655. <option>6</option>
  656. <option>7</option>
  657. <option>8</option>
  658. <option>9</option>
  659. <option>10</option>
  660. <option>11</option>
  661. <option>12</option>
  662. <option>13</option>
  663. <option>14</option>
  664. <option>15</option>
  665. <option>16</option>
  666. <option>17</option>
  667. <option>18</option>
  668. <option>19</option>
  669. <option>20</option>
  670. <option>21</option>
  671. <option>22</option>
  672. <option>23</option>
  673. <option>24</option>
  674. <option>25</option>
  675. <option>26</option>
  676. <option>27</option>
  677. <option>28</option>
  678. <option>29</option>
  679. <option>30</option>
  680. <option>31</option>
  681. <option>32</option>
  682. <option>33</option>
  683. <option>34</option>
  684. <option>35</option>
  685. <option>36</option>
  686. <option>37</option>
  687. <option>38</option>
  688. <option>39</option>
  689. <option>40</option>
  690. <option>41</option>
  691. <option>42</option>
  692. <option>43</option>
  693. <option>44</option>
  694. <option>45</option>
  695. <option>46</option>
  696. <option>47</option>
  697. <option>48</option>
  698. <option>49</option>
  699. <option>50</option>
  700. <option>51</option>
  701. <option>52</option>
  702. <option>53</option>
  703. <option>54</option>
  704. <option>55</option>
  705. <option>56</option>
  706. <option>57</option>
  707. <option>58</option>
  708. <option>59</option>
  709. <option>60</option>
  710. <option>61</option>
  711. <option>62</option>
  712. <option>63</option>
  713. <option>64</option>
  714. <option>65</option>
  715. <option>66</option>
  716. <option>67</option>
  717. <option>68</option>
  718. <option>69</option>
  719. <option>70</option>
  720. <option>71</option>
  721. <option>72</option>
  722. <option>73</option>
  723. <option>74</option>
  724. <option>75</option>
  725. <option>76</option>
  726. <option>77</option>
  727. <option>78</option>
  728. <option>79</option>
  729. <option>80</option>
  730. <option>81</option>
  731. <option>82</option>
  732. <option>83</option>
  733. <option>84</option>
  734. <option>85</option>
  735. <option>86</option>
  736. <option>87</option>
  737. <option>88</option>
  738. <option>89</option>
  739. <option>90</option>
  740. <option>91</option>
  741. <option>92</option>
  742. <option>93</option>
  743. <option>94</option>
  744. <option>95</option>
  745. <option>96</option>
  746. <option>97</option>
  747. <option>98</option>
  748. <option>99</option>
  749. <option>100</option>
  750. </select>
  751. <br />
  752. <br/>
  753. <input type = "Submit" value = "Calculate Final Grade" 
  754. </body>
  755. </html>

Thanks....
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Join Date: Dec 2007
Posts: 19
Reputation: hakimkal is an unknown quantity at this point 
Solved Threads: 4
hakimkal hakimkal is offline Offline
Newbie Poster

Re: PHP Formula and syntax

 
0
  #9
Jul 11th, 2009
your html elements lacks some attribute in ur drop down...

take a cue here:

html Syntax (Toggle Plain Text) 
  1. <form method="post" action="validate.php">
  2.  
  3. <select name="quiz">
  4.  
  5. <option value="-1">Select whatever applies</option>
  6. <option value="1">1</option>
  7. <option value="2">2</option>
  8. <option value="3">3</option>
  9.  
  10. </select>
  11. </form>
  12.  
  13. [


php Syntax (Toggle Plain Text) 
  1. // my php code to pick user select will take this form 
  2.  
  3. //Code in file........validate.php
  4.  
  5.  
  6. $score = $_POST["quiz"] ; 
  7. //you may want to cast to integer i.e  (int) $score 
  8. //......code continues   as you want..


Goodluck!
abdoolherkym!
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Re: PHP Formula and syntax

 
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  #10
Jul 11th, 2009
@Jintu

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That's strange, becos it does not work properly with mine, it keeps calculating everything at 100%....Below is my html code:
That's because my setup had hard-coded $_POST variables at the top of the script. If you changed these to different percentages, you'd find the script works. That's why I mentioned that the problem was probably down to a problem with your form (rather than the script).

Hakimkal is right - you don't have any ids set for the select widget so all your $_POST variables (coming from the form) will not have a value - effectively creating 100% in your original script.

Just a bit of advice: forget hard-coding option values - use a php loop like so:
PHP Syntax (Toggle Plain Text) 
  1. <?php
  2. //do this at the head of the document - it can be re-used for each select dropdown.
  3. $counter = 1;
  4. $opt_output = "<option id=\"-1\" selected=\"selected\">not done yet / excused</option>";
  5. while($counter <= 100){
  6.    $opt_output .= "\n<option id=\"{$counter}\">{$counter}</option>";
  7.    $counter = $counter + 1;
  8. }
  9. ?>
  10.  
  11. ...(html code)...
  12.  
  13. <select id="AL1" name="AL1">
  14.    <?php echo $opt_output;?>
  15. </select>
  16.  
  17. ...(html code)...
  18.  
  19. <select id="AL2" name="AL2">
  20.    <?php echo $opt_output;?>
  21. </select>
  22.  
  23. ...(etc)...
I don't know what you think of this, but what about putting all your dropdowns into one form? You seem to have a lot of 'open' form tags and no 'close' form tags, but only one submit button.

PHP Syntax (Toggle Plain Text) 
  1. <form ...(attributes)...>
  2.    ...(all your dropdowns with labels etc)...
  3.    <input type="submit" id="submitMe" name="submitMe" value="Calculate Final Grade" />
  4. </form>

Hope this helps.
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