Get Php variable in to Javascript function

Question

I know this topic is frequently asked but I've tried many ways and nothing works for me. I have a lot of checkboxes with the id generated (in Php) by a variable like this:<input type="checkbox" id="<?php echo $id; ?>" >. That I want to do is call a Javascript function every time that a radiobutton (autogenerated) is clicked for that that checkbox with id="<?php echo $id; ?>"can be checked.

I tried with things like:

function check() {
    var id = '<?php echo $id; ?>';
    document.getElementById(id).checked = true;
}

I know that maybe I could do with Ajax but I don't know how. (Up to this point is obvious that you know that the radiobutton has onclick = "check ()").

If anyone can tell me what I can do is I appreciate a lot.

possible dublicate of http://stackoverflow.com/questions/831030/how-to-get-get-request-parameters-in-javascript — Snackaholic, Oct 24 '16 at 08:56
radiobuttons are automatically checked when clicked on, what is the scenario you are looking for? — RST, Oct 24 '16 at 08:57
@RST is right maybe when checkbox is check it uncheck again because of your document.getElementById(id).checked = true; which toggle the check status — Beginner, Oct 24 '16 at 09:02

score 0 · Accepted Answer · answered Oct 24 '16 at 09:03

0

You can try something like this:

<input type="checkbox" id="checkbox-<?php echo $id; ?>" />
<input type="radio" data-check="checkbox-<?php echo $id; ?>" onclick="check(this)" />

<script>
  function check(e)
  {
    document.getElementById(e.getAttribute('data-check')).checked = true;
  }
</script>

answered Oct 24 '16 at 09:03

Mihai Matei

24,166
5
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Dude, you are a teacher. Works perfectly I changed only: `data-check=""` for `data-check=""`. – Emm Oct 24 '16 at 09:32
I mean you are a MASTER. Lol. I'm really grateful. Thank you for your time and for your great help! Have a nice day. – Emm Oct 24 '16 at 09:34

score 0 · Answer 2 · answered Oct 24 '16 at 09:31

0

You can use below code for dynamically generated radio and checkbox

$("input[type='radio']").click(function() {
    $(this).closest('input[type="checkbox"]').prop('checked', true);
});

answered Oct 24 '16 at 09:31

Bhavik

495
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10

Get Php variable in to Javascript function

2 Answers2