README

A declarative email system for WordPress that combines dynamic tags, component-based templates, and a simple registration API. Build professional transactional emails with 21+ components and automatic tag processing.

Features

• Tag-Based System: Register dynamic placeholders that get replaced with real data
• 21+ Email Components: Buttons, tables, invoices, shipping trackers, subscription status, and more
• 7 Professional Templates: Default, invoice, notification, dark mode, and more
• Smart Currency Handling: Automatic formatting for all Stripe currencies
• Theme Override Support: Customize templates via your WordPress theme

Installation

composer require arraypress/wp-register-emails

Quick Start

1. Register Tags (Dynamic Content)

// Text replacement
register_email_tag( 'shop', 'customer_name', [
	'type'     => 'text',
	'label'    => 'Customer Name',
	'callback' => fn( $order ) => $order->billing_name
] );

// Button component
register_email_tag( 'shop', 'view_order_btn', [
	'type'     => 'button',
	'label'    => 'View Order Button',
	'callback' => fn( $order ) => [
		'text' => 'View Order #' . $order->id,
		'url'  => 'https://example.com/order/' . $order->id
	]
] );

// Invoice table with currency
register_email_tag( 'shop', 'invoice', [
	'type'     => 'order_items',
	'callback' => fn( $order ) => [
		'items'    => [
			[ 'name' => 'Premium Plugin', 'quantity' => 1, 'price' => 9900 ]
		],
		'tax'      => 990,
		'shipping' => 500,
		'currency' => 'USD'
	]
] );

2. Register Templates

register_email_template( 'shop', 'order_confirmation', [
	'label'    => 'Order Confirmation',
	'subject'  => 'Order #{order_id} Confirmed',
	'template' => 'invoice',  // Visual template
	'message'  => '
        <p>Hi {customer_name},</p>
        <p>Thank you for your order!</p>
        {invoice}
        {view_order_btn}
    '
] );

3. Send Emails

send_email_template( 'shop', 'order_confirmation', [
	'to'   => 'customer@example.com',
	'data' => $order
] );

Available Components

Commerce & Orders

// Invoice with totals
register_email_tag( 'shop', 'invoice', [
	'type'     => 'order_items',
	'callback' => fn( $order ) => [
		'items'    => [ ... ],
		'currency' => 'USD',
		'tax'      => 1000,
		'discount' => 500
	]
] );

// Shipping tracker
register_email_tag( 'shop', 'tracking', [
	'type'     => 'shipping_tracker',
	'callback' => fn( $order ) => [
		'carrier'         => 'FedEx',
		'tracking_number' => '123456789',
		'status'          => 'In Transit',
		'steps'           => [
			[ 'label' => 'Shipped', 'completed' => true ],
			[ 'label' => 'In Transit', 'completed' => false ]
		]
	]
] );

// Subscription status
register_email_tag( 'shop', 'subscription', [
	'type'     => 'subscription_status',
	'callback' => fn( $user ) => [
		'plan'              => 'Premium',
		'status'            => 'Active',
		'amount'            => 9900,
		'currency'          => 'USD',
		'next_billing_date' => '2025-02-01'
	]
] );

Content & Display

// Alert boxes
register_email_tag( 'system', 'warning', [
	'type'     => 'alert',
	'callback' => fn() => [
		'message' => 'Payment method expires soon',
		'type'    => 'warning'  // success|error|warning|info
	]
] );

// Progress bars
register_email_tag( 'system', 'progress', [
	'type'     => 'progress_bar',
	'callback' => fn( $data ) => [
		'current' => $data->completed,
		'total'   => $data->total,
		'label'   => 'Processing'
	]
] );

// Stats grid
register_email_tag( 'metrics', 'stats', [
	'type'     => 'stats_grid',
	'callback' => fn() => [
		'stats' => [
			[ 'value' => '1,234', 'label' => 'Orders' ],
			[ 'value' => '$12,345', 'label' => 'Revenue' ],
			[ 'value' => '98%', 'label' => 'Satisfaction' ]
		]
	]
] );

WooCommerce Example

add_action( 'init', function () {
	// Register tags
	register_email_tag( 'woo', 'order_number', [
		'type'     => 'text',
		'callback' => fn( $order ) => $order->get_order_number()
	] );

	register_email_tag( 'woo', 'order_table', [
		'type'     => 'order_items',
		'callback' => function ( $order ) {
			$items = [];
			foreach ( $order->get_items() as $item ) {
				$items[] = [
					'name'     => $item->get_name(),
					'quantity' => $item->get_quantity(),
					'price'    => $item->get_total() * 100 // Convert to cents
				];
			}

			return [
				'items'    => $items,
				'tax'      => $order->get_total_tax() * 100,
				'shipping' => $order->get_shipping_total() * 100,
				'currency' => $order->get_currency()
			];
		}
	] );

	// Register template
	register_email_template( 'woo', 'order_confirmation', [
		'label'    => 'Order Confirmation',
		'subject'  => 'Order #{order_number} Received',
		'template' => 'invoice',
		'message'  => '
            <h2>Thank you for your order!</h2>
            <p>Order #{order_number} has been received.</p>
            {order_table}
            <p>We will notify you when it ships.</p>
        '
	] );
} );

// Send on order placement
add_action( 'woocommerce_thankyou', function ( $order_id ) {
	send_email_template( 'woo', 'order_confirmation', [
		'to'   => $order->get_billing_email(),
		'data' => wc_get_order( $order_id )
	] );
} );

Templates

Custom Templates

Place templates in your theme:

/wp-content/themes/your-theme/register-emails/custom.html

All Components

• Text: text, raw_html, divider, spacer
• Interactive: button, alert, info_box, coupon
• Data: table, order_items, key_value_list, stats_grid, progress_bar
• Commerce: product_list, downloads_list, shipping_tracker, subscription_status
• User: activity_log, event_details, reward_balance, testimonial

Global Tags

Always available in any template:

• {site_name} - WordPress site name
• {site_url} - Site URL
• {admin_email} - Admin email
• {year} - Current year
• {date} - Current date

Advanced Features

Tag Groups

// Register tags to multiple groups
register_email_tag( 'shop', 'price', [
	'type'     => 'text',
	'groups'   => [ 'invoices', 'quotes' ],  // Available in multiple contexts
	'callback' => fn( $data ) => format_currency( $data->amount, $data->currency )
] );

Preview Mode

// Generate preview with sample data
$html = preview_email_template( 'shop', 'order_confirmation' );

// Preview with specific data
$html = preview_email_template( 'shop', 'order_confirmation', $sample_order );

Settings Integration

register_email_template( 'shop', 'welcome', [
	'settings_callback' => function () {
		// Pull from your settings
		return [
			'enabled' => get_option( 'welcome_email_enabled' ),
			'subject' => get_option( 'welcome_email_subject' ),
			'message' => get_option( 'welcome_email_content' )
		];
	},
	'default_settings'  => [
		'subject' => 'Welcome to {site_name}!',
		'message' => 'Thank you for joining us.'
	]
] );

Requirements

• PHP 7.4 or later
• WordPress 5.0 or later

License

GPL-2.0-or-later

Credits

Created by David Sherlock at ArrayPress