PMPro - Custom JS to autofill the expiration date when a PMPro level is chosen on the edit user page by admin

profile_autofill_expiration.php

/*---------------------------------
Autofill Expiration on Admin Level Change
-----------------------------------*/
function profile_autofill_expiration()
{
  global $wpdb;
  $sqlQuery = "SELECT * FROM $wpdb->pmpro_membership_levels ";
	$sqlQuery .= "ORDER BY id ASC";
	$levels = $wpdb->get_results($sqlQuery, OBJECT);	

?>
<script>
	jQuery(document).ready(function() {	
		//remember current expiration values
		var expires = jQuery("#expires").val();
		var expires_month = jQuery("[name=expires_month]").val();
		var expires_day = jQuery("[name=expires_day]").val();
		var expires_year = jQuery("[name=expires_year]").val();
		var changed = false;
		
		//when changing level set or reset expiration values
		jQuery("[name=membership_level]").change(function() {
   
<?php 
    foreach($levels as $level){
      if($level->expiration_number){
        $level_expiration_from_today = strtotime("+".$level->expiration_number." ".$level->expiration_period, current_time('timestamp'));       
?>

			if(jQuery(this).val() == "<?php echo $level->id; ?>")
			{
			    jQuery("#expires").val(1);
			    jQuery("[name=expires_month]").val(<?php echo date('n', $level_expiration_from_today);?>);
			    jQuery("[name=expires_day]").val(<?php echo date('j', $level_expiration_from_today);?>);
			    jQuery("[name=expires_year]").val(<?php echo date('Y', $level_expiration_from_today);?>);
				
			    jQuery("#expires_date").show();
				
			    changed = true;
			}
<?php  
      }
    }
?>
			if(changed == false)
			{
					jQuery('#expires').val(expires);					
					jQuery('[name=expires_month]').val(expires_month);
					jQuery('[name=expires_day]').val(expires_day);
					jQuery('[name=expires_year]').val(expires_year);
					
					if(expires == 1)
						jQuery('#expires_date').show();
					else
						jQuery('#expires_date').hide();
					
					changed = false;
			}
		});
	});
</script>
<?php
}
add_action( 'show_user_profile', 'profile_autofill_expiration' );
add_action( 'edit_user_profile', 'profile_autofill_expiration' );