user registration date

condition.php

<?php

if ( function_exists( 'oxygen_vsb_register_condition' ) ) {

	oxygen_vsb_register_condition(
		
		'User Registration',

		array('custom' => true, 'placeholder' => 'MM/DD/YYYY'),

		array(
			'==', 
			'is after', 
			'is before',
			'== (month)', 
			'is after (month)', 
			'is before (month)',
		),
		
		'user_registration_date_callback',    

		'User'
	);

}

function user_registration_date_callback( $value, $operator ) {
	
	$user_info = wp_get_current_user();
    $registered_time = strtotime($user_info->user_registered);
	$registered_time_month = strtotime(date('Y-m-01', $registered_time));
	
	$date = strtotime($value);
	$date_month = strtotime(date('Y-m-01', $date));

	if ($date === false) {
		return false;
	}

	$diff = $registered_time - $date;
	$diff = round($diff / (60 * 60 * 24));
	$month_diff = $registered_time_month - $date_month;
	$month_diff = round($month_diff / (60 * 60 * 24));
	

	if ($operator == '==') {
		return ($diff == 0);
	}
	elseif($operator == 'is after') {
		return ($diff > 0);
	}
	elseif($operator == 'is before') {
		return ($diff < 0);
	}
	elseif ($operator == '== (month)') {
		return ($month_diff == 0);
	}
	elseif($operator == 'is after (month)') {
		return ($month_diff > 0);
	}
	else {
		return ($month_diff < 0);
	}

}