如何查看是否选中了具有相同名称的复选框，然后在php中检索值

Question

I have a list of songs. I'm trying to determine whether or not a song on the list has been checked or not. If so I need to know the value of the checkbox.

my html looks like this... the value $song_id is pulled from the list in the database.

<input type='checkbox' name='song[]' value='$song_id' />

There could be 10 songs... there could 100. I need to know which ones have been checked and how to get the value.

Answer 1

foreach ( $_POST['song'] AS $song_id ) {
    // do smth with $song_id ...
}