防止在表单提交后重置具有相同名称的多个复选框

Question

I have multiple classes/groups of checkboxes and each class/group contain multiple checkboxes in it with same name. When form submitted, all checkboxes get reset. I have tried many solutions available on this site but these are not working for group of checkboxes. For example:-

<form method="post" action="" name="SearchForm"   >

  <input type="checkbox" name="color[]" value="Black">
  <input type="checkbox" name="color[]" value="White">
  <input type="checkbox" name="color[]" value="Green">

  <input type="checkbox" name="language[]" value="Punjabi">
  <input type="checkbox" name="language[]" value="Sindhi">
  <input type="checkbox" name="language[]" value="Saraiki">

</form>

How can I prevent checkboxes from getting reset after form submitted?

Answer 1

When the form sent, the page reloads, so all changes in the document will be lost. But you can easily do it with PHP:

<form method="post" action="" name="SearchForm">

  <input type="checkbox" name="color[]" value="Black" <?php echo $_POST['color'][0]?'checked="checked"':'';?>>
  <input type="checkbox" name="color[]" value="White" <?php echo $_POST['color'][1]?'checked="checked"':'';?>>
  <input type="checkbox" name="color[]" value="Green" <?php echo $_POST['color'][2]?'checked="checked"':'';?>>

  <input type="checkbox" name="language[]" value="Punjabi" <?php echo $_POST['language'][0]?'checked="checked"':'';?>>
  <input type="checkbox" name="language[]" value="Sindhi" <?php echo $_POST['language'][1]?'checked="checked"':'';?>>
  <input type="checkbox" name="language[]" value="Saraiki" <?php echo $_POST['language'][2]?'checked="checked"':'';?>>

</form>

Something like this should work.

I hope that this will help you!