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plurals

PODynamic dropdownlist value from database
primarykey
Id
20795351
data
AcceptedAnswerId
20795573
AnswerCount
2
ClosedDate
CommentCount
4
CommunityOwnedDate
CreationDate
2013-12-27T05:33:10.743
FavoriteCount
0
LastActivityDate
2013-12-27T12:14:38.513
LastEditDate
2013-12-27T05:38:34.720
LastEditorUserId
3097736
OwnerUserId
3097736
ParentId
0
PostTypeId
1
Score
3
ViewCount
2074
LastEditorDisplayName
text
Body
<p>How I can connect the value of my main dropdown into sub dropdown. Value of dropdown is from the database main_list and sub_list tables. And also the body onload is not working. </p> <p>Main_list</p> <pre><code>id | value | id_no 1 | colors | 1 2 | fruits | 2 3 | animals| 3 4 | flowers| 4 </code></pre> <p>sub_list</p> <pre><code>id | value | category 1 | red | 1 2 | blue | 1 3 | mango | 2 4 | banana | 2 5 | cat | 3 6 | dog | 3 7 | lotus | 4 8 | lily | 4 </code></pre> <p>And this my Code</p> <p>PHP :</p> <pre><code><body onload="run()"> <form id="form1" name="form1" method="post" action="<?php $_SERVER['PHP_SELF']?>"> Drop1 <?php $mysqli = new mysqli("localhost", "root", "", "lists"); $result = $mysqli->query("SELECT * FROM main_list GROUP BY id ORDER BY id"); $option = ''; while($row = $result->fetch_assoc()) { $option .= '<option value = "'.$row['value'].'">'.$row['value'].'</option>'; } ?> <select id="main" name="main" onchange="run()">  <option selected=selected>Choose</option> <?php echo $option; ?> </select><br><br> <?php if (isset($_POST['main'])) { $mysqli = new mysqli("localhost", "root", "", "lists"); $result1 = $mysqli->query("SELECT * FROM sub_list GROUP BY value ORDER BY id"); $option1 = ''; while($row = $result1->fetch_assoc()) { $option1 .= '<option value = "'.$row['value'].'">'.$row['value'].'</option>'; } } echo 'Drop2 '; echo '<select name="sub" id="sub" onchange="run()"> <option value=" " disabled="disabled" selected="selected">Choose one</option>'; echo $option1; echo '</select> '; ?> <input type="submit" name="submit" value="Submit" /> </form> </code></pre> <p>Javascript :</p> <pre><code><script type="text/javascript"> function run(){ document.getElementById('form1').change() } </script> </code></pre>
Tags
<javascript><php><mysql><mysqli>
Title
Dynamic dropdownlist value from database
singulars
PostAcceptedAnswerId
1. PO
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  PostTypePostTypeId
  PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USuser3097736
UserOwnerUserId
1. USuser3097736
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
2. PO
  singulars
  PostTypePostTypeId
  PTAnswer
VotesPostIdCreationDate
1. VO
  singulars
  PostPostId
  PODynamic dropdownlist value from database
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
2. VO
  singulars
  PostPostId
  PODynamic dropdownlist value from database
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
3. VO
  singulars
  PostPostId
  PODynamic dropdownlist value from database
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
CommentsPostId

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