How to Check All Checkboxes using JavaScript in a table row emitted by PHP

Question

I am new to PHP. I want to create a script to check all checkboxes in a row, but I am stuck.

PROBLEM

Code is not working with loop.

Here is my output

When I check the checkbox under the Opinion column I want to automatically check all checkboxes in the same row.

Here is my code

To render data and checkboxes for each row I use a server-side PHP loop

JavaScript:

<script>      
$('.allcb').on('click', function() {
    $(this).parent().parent().parent().parent().find('.chk').prop('checked', this.checked);
});
</script>

HTML:

 <?php
        for ($i=0; $i<count($opinion); $i++) {
    //if ($opinion[$i] == "")continue;
        ?>
          <tr>
            <td>
               <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
             <!-- <input type="text" name="opinion[]" value="<?php //echo $opinion[$i]?>" size="28" readonly="readonly" />-->

      <input type="checkbox" name="opinion[]" class="allcb" data-child="chk" value="<?php echo $opinion[$i]?>" />
      <?php echo $opinion[$i]?>
    </td>
    <td>
      <input type="checkbox" name="action[]" class="chk" value="<?php echo $action[$i] ?>" />
      <?php echo $action[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="long_term[]" class="chk" value="<?php echo $long_term[$i] ?>" />
      <?php echo $long_term[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="p_long_term[]" class="chk" value="<?php echo !empty($p_long_term[$i])?$p_long_term[$i]:'';?>" />
      <?php echo !empty($p_long_term[$i])?$p_long_term[$i]: '';?>
    </td>
    <td>
      <input type="checkbox" name="short_term[]" class="chk" value="<?php echo $short_term[$i] ?>" />
      <?php echo $short_term[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="p_short_term[]" class="chk" value="<?php echo !empty($p_short_term[$i])?$p_short_term[$i]:'';?>" />
      <?php echo !empty($p_short_term[$i])?$p_short_term[$i]: '';?>
    </td>
    <td>
      <input type="checkbox" name="outlook[]" class="chk" value="<?php echo $outlook[$i] ?>" />
      <?php echo $outlook[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="rating_type[]" class="chk" value="<?php echo $rating_type[$i] ?>" />
      <?php echo $rating_type[$i] ?>
    </td>
  </tr>
<?php
        }
?>

Answer 1

A simple way would be if you add some identifier to you TR s so the checkbox "knows" which checkboxes are in the same row.

It would also be possible by checking the parent nodes but this may be a bit unstable (think about restructure the table for example).

 function toggleRowCbs(cb) { var cbs = document.getElementById(cb.dataset.rowid).querySelectorAll('[type="checkbox"]'); [].forEach.call(cbs, function(x) { x.checked = cb.checked; }); } 

 table, tr, td, th { border: 1px solid #ccc; border-collapse: collapse; text-align: left; padding: 2pt 4pt; } 

 <table> <tr> <th>Optionion</th> <th>Action</th> <th colspan="4">Ratings</th> <th>Outlook</th> <th>Rating Type</th> </tr> <tr> <th></th> <th></th> <th colspan="2">Long Term</th> <th colspan="2">Short Term</th> <th></th> <th></th> </tr> <tr> <th></th> <th></th> <th>Current</th> <th>Previous</th> <th>Current</th> <th>Previous</th> <th></th> <th></th> </tr> <tr id="row1"> <td> <input type="checkbox" data-rowid="row1" onchange="toggleRowCbs(this)" />Foobar </td> <td> <input type="checkbox" />Maintain </td> <td> <input type="checkbox" />A+ </td> <td> <input type="checkbox" />A+ </td> <td> <input type="checkbox" />A1 </td> <td> <input type="checkbox" />A1 </td> <td> <input type="checkbox" />Stable </td> <td> <input type="checkbox" />Entity </td> </tr> <tr id="row2"> <td> <input type="checkbox" data-rowid="row2" onchange="toggleRowCbs(this)" />Foobar #2 </td> <td> <input type="checkbox" />Maintain </td> <td> <input type="checkbox" />A+ </td> <td> <input type="checkbox" />A+ </td> <td> <input type="checkbox" />A1 </td> <td> <input type="checkbox" />A1 </td> <td> <input type="checkbox" />Stable </td> <td> <input type="checkbox" />Entity </td> </tr> </table> 

So your PHP Code would look like this:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<?php
    for ($i=0; $i<count($opinion); $i++) { ?>
      <tr id="row<?php echo $i ?>">
        <td>
      <input type="checkbox" data-rowid="row<?php echo $i ?>" onchange="toggleRowCbs(this)" name="opinion[]" class="allcb" data-child="chk" value="<?php echo $opinion[$i]?>" />
      <?php echo $opinion[$i]?>
    </td>
    <td>
      <input type="checkbox" name="action[]" class="chk" value="<?php echo $action[$i] ?>" />
      <?php echo $action[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="long_term[]" class="chk" value="<?php echo $long_term[$i] ?>" />
      <?php echo $long_term[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="p_long_term[]" class="chk" value="<?php echo !empty($p_long_term[$i])?$p_long_term[$i]:'';?>" />
      <?php echo !empty($p_long_term[$i])?$p_long_term[$i]: '';?>
    </td>
    <td>
      <input type="checkbox" name="short_term[]" class="chk" value="<?php echo $short_term[$i] ?>" />
      <?php echo $short_term[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="p_short_term[]" class="chk" value="<?php echo !empty($p_short_term[$i])?$p_short_term[$i]:'';?>" />
      <?php echo !empty($p_short_term[$i])?$p_short_term[$i]: '';?>
    </td>
    <td>
      <input type="checkbox" name="outlook[]" class="chk" value="<?php echo $outlook[$i] ?>" />
      <?php echo $outlook[$i] ?>
    </td>
    <td>
      <input type="checkbox" name="rating_type[]" class="chk" value="<?php echo $rating_type[$i] ?>" />
      <?php echo $rating_type[$i] ?>
    </td>
  </tr>
<?php } ?>

Because this is a vanilla JavaScript solution which uses querySelectorAll , dataset and Array.prototype.forEach this may be not running on all browsers you want.

Answer 2

 $('.allcb').on('click', function() { $(this).parent().siblings().find('.chk').prop('checked', this.checked); }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table> <tr> <td> <input type="checkbox" name="opinion[]" class="allcb" data-child="chk" value="<?php echo $opinion[$i]?>" /> <?php echo $opinion[$i]?> </td> <td> <input type="checkbox" name="action[]" class="chk" value="<?php echo $action[$i] ?>" /> <?php echo $action[$i] ?> </td> <td> <input type="checkbox" name="long_term[]" class="chk" value="<?php echo $long_term[$i] ?>" /> <?php echo $long_term[$i] ?> </td> <td> <input type="checkbox" name="p_long_term[]" class="chk" value="<?php echo !empty($p_long_term[$i])?$p_long_term[$i]:'';?>" /> <?php echo !empty($p_long_term[$i])?$p_long_term[$i]: '';?> </td> <td> <input type="checkbox" name="short_term[]" class="chk" value="<?php echo $short_term[$i] ?>" /> <?php echo $short_term[$i] ?> </td> <td> <input type="checkbox" name="p_short_term[]" class="chk" value="<?php echo !empty($p_short_term[$i])?$p_short_term[$i]:'';?>" /> <?php echo !empty($p_short_term[$i])?$p_short_term[$i]: '';?> </td> <td> <input type="checkbox" name="outlook[]" class="chk" value="<?php echo $outlook[$i] ?>" /> <?php echo $outlook[$i] ?> </td> <td> <input type="checkbox" name="rating_type[]" class="chk" value="<?php echo $rating_type[$i] ?>" /> <?php echo $rating_type[$i] ?> </td> </tr> </table> 

Answer 3

Simple use this : 

$(document).ready(function(){
  $('.allcb').on('click', function(){
    $(this).parent("td").parent("tr").find('.chk').prop('checked', this.checked);

  });
});

Answer 4

You can try this,

 $('.allcb').on('click', function(){  
      $(this).closest('tr').find('.chk').prop('checked', this.checked);  
 }); 

Or

 $('.allcb').on('click', function(){  
      $(this).parents('tr').find('.chk').prop('checked', this.checked);  
 }); 

this is just Pekka answer with 1 line more.

Answer 5

You can do it by adding a kind of reference on the other check boxes to the main check box you are checking. Then, when clicking on the main check box, you can control the others. Like this:

Javascript:

    $('.allcb').on('click', function(){
        var index = $(this).data('index');

        if ($(this).is(':checked'))
        {
            $('.childChk' + index).prop('checked', true);
        }
        else
        {
            $('.childChk' + index).prop('checked', false);
        }
    });

HTML:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
        <?php
            for ($i=0; $i<count($opinion); $i++) {
        //if ($opinion[$i] == "")continue;
            ?>
              <tr>
                <td>
                 <!-- <input type="text" name="opinion[]" value="<?php //echo $opinion[$i]?>" size="28" readonly="readonly" />-->

          <input type="checkbox" name="opinion[]" class="allcb" data-child="chk" data-index="<?=$i?>" value="<?php echo $opinion[$i]?>" />
          <?php echo $opinion[$i]?>
        </td>
        <td>
          <input type="checkbox" name="action[]" class="chk chkChild<?=$i?>" value="<?php echo $action[$i] ?>" />
          <?php echo $action[$i] ?>
        </td>
        <td>
          <input type="checkbox" name="long_term[]" class="chk chkChild<?=$i?>" value="<?php echo $long_term[$i] ?>" />
          <?php echo $long_term[$i] ?>
        </td>
        <td>
          <input type="checkbox" name="p_long_term[]" class="chk chkChild<?=$i?>" value="<?php echo !empty($p_long_term[$i])?$p_long_term[$i]:'';?>" />
          <?php echo !empty($p_long_term[$i])?$p_long_term[$i]: '';?>
        </td>
        <td>
          <input type="checkbox" name="short_term[]" class="chk chkChild<?=$i?>" value="<?php echo $short_term[$i] ?>" />
          <?php echo $short_term[$i] ?>
        </td>
        <td>
          <input type="checkbox" name="p_short_term[]" class="chk chkChild<?=$i?>" value="<?php echo !empty($p_short_term[$i])?$p_short_term[$i]:'';?>" />
          <?php echo !empty($p_short_term[$i])?$p_short_term[$i]: '';?>
        </td>
        <td>
          <input type="checkbox" name="outlook[]" class="chk chkChild<?=$i?>" value="<?php echo $outlook[$i] ?>" />
          <?php echo $outlook[$i] ?>
        </td>
        <td>
          <input type="checkbox" name="rating_type[]" class="chk chkChild<?=$i?>" value="<?php echo $rating_type[$i] ?>" />
          <?php echo $rating_type[$i] ?>
        </td>
      </tr>
    <?php
            }
    ?>

Note that I added the $i counter to your child check boxes class. This won't change the behavior of any DOM element.

EDIT:

You may NOT call the jQuery library inside the loop. The jQuery library MUST be called just one time. If you call several times, all the solutions presented here will not work.

Answer 6

If you want to check all the checkBoxes using javascript,

You can give all the checkbox a class,

and then

var a = document.getElementsByClassName("yourClassName"); for(var key in a) { a[key].checked = true; }

or

if you want to use jQuery ,

$(".yourClassName").attr("checked",true);

Answer 7

This solution plays nice with dynamic elements, and uses className to identity the row ( .option-row ) instead of relying on tagName so that you're not committed to using specific elements to display the data.

Make sure that you include a reference to jquery.js before you call the $ function (as in the example below).

 // check or uncheck all boxes with class 'chk' when 'allcb' is clicked $(document).on('click', '.allcb', function() { $('.chk',$(this).closest('.option-row')).prop('checked', this.checked); }); // simulate PHP; render some rows for demo var html = []; for (var i = 0; i < 5; i++) { html.push('<tr class="option-row"><td><input type="checkbox" class="allcb cb"/></td><td><input type="checkbox" class="chk"/></td><td><input type="checkbox" class="chk"/></td></tr>'); } $("tbody").html(html.join('')); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table> <thead> <tr> <th>Opinion</th> <th>Column A</th> <th>Column B</th> </tr> </thead> <tbody> </tbody> </table>