Help related to like dislike button

i have no knowlege in php but in .net we use Imagebutton ,here we can set image like in csharp corner like dislike and Imagebutton has event

protected void BtnLike_Click(object sender, EventArgs e)
{
//increment by 1 in database count for your variable for logged in user
BtnLike.Enabled = false; btnDislike.Enabled = true;
 }


 protected void btnDislike_Click(object sender, EventArgs e)
{ // decrement by 1 in database count for your variable
BtnLike.Enabled = true ; btnDislike.Enabled = false ;
 }