Validation of multiple checkbox and implode function

Question

The below is a snippet

<tr>
    <td>7</td>
    <td>Tick the Teaching Methods Used </td>
    <td>
        <input type="checkbox" id="lectures" name="lectures" value="lectures">Lectures &nbsp;
        <input type="checkbox" id="study" name="study" value="study">Case Study &nbsp;
        <input type="checkbox" id="audvid" name="audvid" value="audvid">Audio|Video &nbsp;
        <input type="checkbox" id="interactive" name="interactive" value="interactive">Interactive Methods &nbsp;
        <input type="checkbox" id="discussion" name="discussion" value="discussion">Discussion &nbsp;
        <input type="checkbox" id="role" name="role" value="role">Role Play &nbsp;
        <input type="checkbox" id="quiz" name="quiz" value="quiz">Quiz
    </td>
</tr>

and the validation code is

if ((document.form1.lectures.checked == false)
      && (document.form1.study.checked == false)
      && (document.form1.audvid.checked == false)
      && (document.form1.interactive.checked == false)
      && (document.form1.discussion.checked == false)
      && (document.form1.role.checked == false)
      && (document.form1.quiz.checked == false)) { 

    alert("Please check any one method"); 
    isValid = false;
}
return isValid;

How do i insert only the checked values into mysql database, implode doesn't seem to help

Edit : If i use the same "name" for all checkbox implode works but in that case I'm not able to validate

stackoverflow.com/questions/2697329/…

Deadlock
– Deadlock

2014-03-09 07:25:28 +00:00
Commented Mar 9, 2014 at 7:25 — Deadlock
– Deadlock, Commented Mar 9, 2014 at 7:25

Racil Hilan · Accepted Answer · 2014-03-09 07:51:41Z

0

Use the same name for all your checkboxes. You said implode, so that's good. As for the validation, change it to use the IDs:

else if ((document.getElementById("lectures").checked == false)
      && (document.getElementById("study").checked == false)
      && (document.getElementById("audvid").checked == false)
      && (document.getElementById("interactive").checked == false)
      && (document.getElementById("discussion").checked == false)
      && (document.getElementById("role").checked == false)
      && (document.getElementById("quiz").checked == false)) { 

    alert("Please check any one method"); 
    isValid = false;
}
return isValid;

answered Mar 9, 2014 at 7:51

Racil Hilan

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Comments

Bartek Ferek · Accepted Answer · 2014-03-09 08:39:53Z

0

Checkboxes are only put in POST, if selected (checked).

PHP:

$keys = explode(',','lectures,study,audvid'); //get all keys
$result = array();

foreach ($keys as $key) {
  if (isset($_POST[$key]) && $_POST[$key]) { //selected!
    $result[] = $key;
  }
}

print_r($result); //only selected checkeboxes are in result.

answered Mar 9, 2014 at 8:39

Bartek Ferek

1

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