Problem with array loop

JavaScript
1

Please kindly assist with the solution to this function. I have 2 controls (i.e Select dropdown and a textbox). The two controls are arrays loop. I want the value of the input control stored in another textbox at evert loop

function invests() {
  var a=document.getElementById("chk[]").value;
  var b=document.getElementById("invest[]").value;
  var c=document.getElementById("invest-result[]").value;

  document.getElementById('hdinvest[]').value=a;
  document.getElementById('hdinvests[]').value=b;
}
2

This looks like JavaScript rather than PHP?

3

Yes it is a Javascript function

4

I’ve moved this to the JS forum.

5

Thanks, waiting for the solution to the problem

6

Can you show us the HTML you are applying this JavaScript to? It’s very difficult to understand what is supposed to happen otherwise.

7 
<div id="invest" class="tab-pane fade">
    
    <fieldset style="border:1px solid;">
   <legend class="scheduler-border" style="color:#00bfff;">Investigation &raquo; <INPUT type="checkbox" name="chk-invest" id="chk-invest"/> <b style="font-size:14px;color:#f00;">Uncovered Investigation</b> </legend> 
   <b style="font-size:14px;padding-left:10px;">Covered Investigation</b>
   <table id="dataTable" class="table table-hover borderless">
     <thead>
        <TR>
        <TD><INPUT type="checkbox" name="chk"/><input type="text" id="hdinvest" name="hdinvest"/><input type="text" id="hdinvests" name="hdinvests"/></TD>
            <TD id="invests">
                <SELECT class="form-control invest" name="invest" id="invest" onchange="invests()">
                    <OPTION value="">Select Investigation</OPTION>
                    <?php 
                    $query2="select laboption,fee from investigation group by laboption order by laboption asc";
                    $resultquery2=mysql_query($query2) or die(mysql_error());
                    while($row2=mysql_fetch_array($resultquery2)){
                    extract($row2);
                    ?>
                    <OPTION value="<?php echo $fee;?>"><?php echo $laboption;?></OPTION>
                    <?php }?>
                    
                </SELECT>
            </TD>
            
            <TD id="results"><INPUT class="form-control" type="text" name="invest-result" id="invest-result" placeholder="Investigation Result"/></TD>
        </TR>

          </thead>
    </table>
    
        <div style="text-align:center;">
        <INPUT type="button" class="btn btn-info" value="Add Row" onclick="addRow('dataTable')" />
    <INPUT class="btn btn-info" type="button" value="Delete Row" onclick="deleteRow('dataTable')" />
</div>
    
    <b style="font-size:14px;padding-left:10px;display:none;" id="und">Uncovered Investigation</b>
    <table id="dataTablex" class="table table-hover borderless" style="margin:0px;padding:0px;display:none;">
     <thead>
        <TR>
        <TD><INPUT type="checkbox" name="chk"/><input type="text" id="hdinvestx" name="hdinvestx"/><input type="text" id="hdinvestsx" name="hdinvestsx"/></TD>
            <TD id="investsx">
                <SELECT class="form-control invest" name="investx" id="investx" onchange="invests()">
                    <OPTION value="">Select Investigation</OPTION>
                    <?php 
                    $query2="select laboption,fee from investigation group by laboption order by laboption asc";
                    $resultquery2=mysql_query($query2) or die(mysql_error());
                    while($row2=mysql_fetch_array($resultquery2)){
                    extract($row2);
                    ?>
                    <OPTION value="<?php echo $fee;?>"><?php echo $laboption;?></OPTION>
                    <?php }?>
                    
                </SELECT>
            </TD>
            
            <TD id="resultsx"><INPUT class="form-control" type="text" name="invest-resultx" id="invest-resultx" placeholder="Investigation Result"/></TD>
        </TR>

          </thead>
    </table>

<div id="uncoveredinvest" style="text-align:center;display:none;">
        <INPUT type="button" class="btn btn-info" value="Add Row" onclick="addRow('dataTablex')" />
    <INPUT class="btn btn-info" type="button" value="Delete Row" onclick="deleteRow('dataTablex')" />
</div>
    
    <table class="table">
    <tr>
  <td style="width:100px;"> Additional</td>
    <td colspan="3">
     <textarea class="form-control" rows="2" id="Additionalinvest" name="Additionalinvest" ></textarea>
    </td>
    <td>&nbsp;</td>
  </tr>
  </table>

<table class="table table-hover borderless" cellpadding="0" cellspacing="0" border="0">
  <tbody>
    <tr style="background:#2A3F54;color:#fff;">
      <td>S/N</td>
      <td>Date</td>
      <td>Time</td>
      <td>Investigations</td>
      <td>Investigation Results</td>
      <td>Clinician</td>
    </tr>
    
    <tr>
     <td>1</td>
     <td>1</td>
     <td>1</td>
     <td>1</td>
     <td>1</td>
     <td>1</td>
    
  <tbody>
  </table>
  
      </fieldset>
      
  </div>
8

None of those ids exist in the HTML and so none of them will have a value attribute

9

How to pass selected index array value into a textbox control. ie.

<SELECT class="form-control invest" name="invest[]" id="invest[]" onchange="invests('dataTable')">
                    <OPTION value="">Select Investigation</OPTION>
                    <?php 
                    $query2="select laboption,fee from investigation group by laboption order by laboption asc";
                    $resultquery2=mysql_query($query2) or die(mysql_error());
                    while($row2=mysql_fetch_array($resultquery2)){
                    extract($row2);
                    ?>
                    <OPTION value="<?php echo $fee;?>"><?php echo $laboption;?></OPTION>
                    <?php }?>
                    
                </SELECT>
<input type="text" id="myname[]" name="myname[]"/>
10 
<SELECT class="form-control invest" name="invest[]" id="invest[]" onchange="invests('dataTable')">
                    <OPTION value="">Select Investigation</OPTION>
                    <?php 
                    $query2="select laboption,fee from investigation group by laboption order by laboption asc";
                    $resultquery2=mysql_query($query2) or die(mysql_error());
                    while($row2=mysql_fetch_array($resultquery2)){
                    extract($row2);
                    ?>
                    <OPTION value="<?php echo $fee;?>"><?php echo $laboption;?></OPTION>
                    <?php }?>
                    
                </SELECT>
<input type="text" id="myname[]" name="myname[]"/>
11

arrays do not exist in HTML.

12

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