php - getting a checkbox array value from POST

Question

i am posting an array of checkboxes. and i cant get it to work. i didnt include the proper syntax in the foreach loop to keep it simple. but it is working. i tested in by trying to do the same thing with a text field instead of a checkbox and it worked with the textfield.

<form method="post">
<?php 
foreach{
echo'
<input id="'.$userid.'" value="'.$userid.'"  name="invite[]" type="checkbox">
<input type="submit">';
}
?>
</form>

here is the part that is not working. it is echoing 'invite' instead of array.

<?php
    if(isset($_POST['invite'])){
$invite = $_POST['invite'];
echo $invite;
}

Answer 1

Your $_POST array contains the invite array, so reading it out as

<?php
if(isset($_POST['invite'])){
  $invite = $_POST['invite'];
  echo $invite;
}
?>

won't work since it's an array. You have to loop through the array to get all of the values.

<?php
if(isset($_POST['invite'])){
  if (is_array($_POST['invite'])) {
    foreach($_POST['invite'] as $value){
      echo $value;
    }
  } else {
    $value = $_POST['invite'];
    echo $value;
  }
}
?>