Starter Site 2024 Course - MU Shortcodes

mu-shortcodes.php

<?php
   /*
   Plugin Name: Custom Shortcodes
   Description: Add Custom Shortcodes
   Plugin URI: https://wpnathan.com
   Version: 2024.11
   Author: Nathan Ingram
   Author URI: https://wpnathan.com
   License: GPL2
   */

// Security Check

if (!defined('ABSPATH')) {
    die();
}

//Current Year Shortcode
 
function ni_year_shortcode() {
	$year = date('Y');
	return $year;
}
add_shortcode('year', 'ni_year_shortcode');


// Years Since Shortcode
// Usage [years-since y=2012-03-01]
// Note, will also accept just YYYY or YYYY-MM assuming the first day of those time periods

add_shortcode('years-since', 'bww_years_since_shortcode');

function bww_years_since_shortcode($atts) {
    if (!isset($atts['y'])) {
        return __('Year is required.', 'years-since');
    }

    $y = $atts['y'];

    // Validate and parse the `y` input
    if (preg_match('/^\d{4}$/', $y)) {
        // Format: YYYY, assume January 1
        $date = "$y-01-01";
    } elseif (preg_match('/^\d{4}-\d{2}$/', $y)) {
        // Format: YYYY-MM, assume the first day of the month
        $date = "$y-01";
    } elseif (preg_match('/^\d{4}-\d{2}-\d{2}$/', $y)) {
        // Format: YYYY-MM-DD, use as is
        $date = $y;
    } else {
        return __('Invalid date format. Use YYYY, YYYY-MM, or YYYY-MM-DD.', 'years-since');
    }

    // Ensure the date is valid
    if (!strtotime($date)) {
        return __('Invalid date.', 'years-since');
    }

    $difference = date_diff(date_create($date), date_create());

    // Return the formatted time difference
    if ($difference->y < 1 && $difference->m < 1) {
        if ($difference->d / 7 > 1) {
            return bww_string_return($difference->d / 7, __('week', 'years-since'), __('weeks', 'years-since'));
        }
        return bww_string_return($difference->d, __('day', 'years-since'), __('days', 'years-since'));
    }
    if ($difference->y < 1) {
        return bww_string_return($difference->m, __('month', 'years-since'), __('months', 'years-since'));
    }
    return bww_string_return($difference->y, __('year', 'years-since'), __('years', 'years-since'));
}

function bww_string_return($time, $singular, $plural) {
    return sprintf(
        _n('%d ' . $singular, '%d ' . $plural, $time, 'years-since'),
        number_format_i18n($time)
    );
}