woocommerce_email_subject_(id) │ filter-hook │ WC 2.0.0

Provides an opportunity to inspect and modify subject for the email.

Usage

add_filter( 'woocommerce_email_subject_(id)', 'wp_kama_woocommerce_email_subject_id_filter', 10, 3 );

/**
 * Function for `woocommerce_email_subject_(id)` filter-hook.
 * 
 * @param string      $subject Subject of the email.
 * @param object|bool $object  The object (ie, product or order) this email relates to, if any.
 * @param WC_Email    $email   WC_Email instance managing the email.
 *
 * @return string
 */
function wp_kama_woocommerce_email_subject_id_filter( $subject, $object, $email ){

	// filter...
	return $subject;
}

$subject(string)

Subject of the email.

$object(object|true|false)

The object (ie, product or order) this email relates to, if any.

$email(WC_Email)

WC_Email instance managing the email.

Changelog

Where the hook is called

return apply_filters( 'woocommerce_email_subject_' . $this->id, $this->format_string( $this->get_option_or_transient( 'subject', $this->get_default_subject() ) ), $this->object, $this );

Where the hook is used in WooCommerce