Question

<form id="myform">

<input type='checkbox' name='foo[]' value='1'>

<input type='checkbox' name='foo[]' checked='true' value='2' >

<input type='checkbox' name='foo[]' value='3' >

<input type='checkbox' name='foo[]' checked='true' value='4' >

</form>

now using jquery, i need to get selected values of name foo[].

Also i need to pass these as an array to a php file i.e foo = array(2,4)

Answer 1

Try this

    $("input[type=checkbox]:checked").each(function(){
          arr[]=$(this).val();
   });

to get the values of each element then covert it to json using

  var myJsonString = JSON.stringify(yourArray);