这是我的 javascript 代码
function AddContactPhoneNo()
{
$("input[name='contact_id[]']:checked").each(function(){
var opt_value = $(this).parent().parent().children('.contacts_firstname_01_contacts').text();
var opt = "<option value='" + opt_value + "'>" + opt_value + "</option>";
if (opt_value != "")
{
alert(opt_value);
}
});}
这是我的 HTML 代码
<div class="contacts_headings_01">
<div class="contacts_checkbox_01"><input name="contact_id[]" id="contact_id" type="checkbox" value="'.$contacts_row['contact_id'].'" style="margin-top:0px ; margin-left:-3px;" /></div>
<div class="contacts_firstname_01_contacts">'.$firstname.'</div>
<div class="contacts_firstname_01">'.$lastname.'</div>
<div class="contacts_firstname_01">'.$company.'</div>
<div class="contacts_group_01_contacts_page">'.$groups1.'</div>
<div class="contacts_firstname_01_contactdateofbirth">'.$birth_date.'</div>
<div class="contacts_gender_01">'.$gender2.'</div>
<div class="ncontacts_mobile_nmbr_01">'.$phone1.'</div>
</div>
我有这样的错误
$ is not defined
$("input[name='contact_id[]']:checked").each(function(){