javascript - PHP Populate Text Box from DropDown Selection -


i trying populate 2 text fields after user makes choice on drop down. code below works manual effort in function. need values form.accounts , form.client come query select box using. ideas. should jquery - not familiar it.

<?php                           $db = new mysqli("127.0.0.1", "root", "", "centrum");  $sql = "select accounts_client_accounts.accounts_client_account_id, accounts_client_accounts.accounts, accounts_client.client accounts_client_accounts inner join accounts_client on accounts_client_accounts.accounts_client_id =      accounts_client.accounts_client_id order accounts_client_account_id ";  if(!$result = $db->query($sql)){ die('there error running query [' . $db->error . ']'); }?>  <form class="form-ui"> <span class="form-elements reqfield">   <select class="dropdown" onchange="populatedata(this)">    <option value="0">choose account</option>  <?php while($row = $result->fetch_assoc()){     echo "<option value='". $row['accounts_client_account_id']."'>".$row['accounts'];   }   ?>   </select> </span> <span class="form-elements">   <input name="accounts" type="text" class="text" value="" /> </span>  <span class="form-elements reqfield">   <input name="client" type="text" class="text" value="" /> </span> </form> <script> function populatedata(sel){     var form = sel.form,         value = sel.options[sel.selectedindex].value;     switch(value){         case '1':             form.accounts.value = 'account1';             form.client.value = 'client1';         break;         case '2':             form.accounts.value = 'account2';             form.client.value = 'client2';         break;         case '3':          form.accounts.value = 'account3';             form.client.value = 'client3';         break;         default:     } } </script>

you can use data attributes drop down options , populate fields` values form them. here code:

<form class="form-ui"> <span class="form-elements reqfield">   <select class="dropdown" onchange="populatedata(this)">    <option value="0">choose account</option>  <?php while($row = $result->fetch_assoc()){     echo "<option data-account=".$row['accounts']." data-client=".$row['client']." value='". $row['accounts_client_account_id']."'>".$row['accounts'];   }   ?>   </select> </span> <span class="form-elements">   <input name="accounts" type="text" class="text" value="" /> </span>  <span class="form-elements reqfield">   <input name="client" type="text" class="text" value="" /> </span> </form> <script> function populatedata(sel){     var account = $(this).find(':selected').data('account'),         client = $(this).find(':selected').data('client');          form.accounts.value = account;         form.client.value = client;     } } </script>

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