GravityWiz_DateMergeTags – Gravity Wiz // Gravity Forms // Format Date Merge Tags

/**

 * Gravity Wiz // Gravity Forms // Format Date Merge Tags

 * https://gravitywiz.com/gravity-forms-date-merge-tags/

 *

 * Adds merge tag modifiers for formatting date merge tags using PHP Date Formats.

 *

 * Plugin Name:  Gravity Forms — Format Date Merge Tags

 * Plugin URI:   https://gravitywiz.com/gravity-forms-date-merge-tags/

 * Description:  Adds merge tag modifiers for formatting date merge tags using PHP Date Formats.

 * Author:       Gravity Wiz

 * Version:      0.6

 * Author URI:   https://gravitywiz.com

 */

class GW_Format_Date_Merge_Tag {

	private $_args = array();

	public function __construct( $args = array() ) {

		// set our default arguments, parse against the provided arguments, and store for use throughout the class

		$this->_args = wp_parse_args( $args, array(

			'form_id'  => false,

			'field_id' => false,

			'locale'   => null,

		) );

		// do version check in the init to make sure if GF is going to be loaded, it is already loaded

		add_action( 'init', array( $this, 'init' ) );

	}

	public function init() {

		add_filter( 'gform_pre_replace_merge_tags', array( $this, 'replace_merge_tags' ), 10, 7 );

	}

	public function replace_merge_tags( $text, $form, $entry, $url_encode, $esc_html, $nl2br, $format ) {

		if ( ! $this->is_applicable_form( $form ) ) {

			return $text;

		}

		$current_locale = determine_locale();

		$locale         = $this->_args['locale'];

		if ( $locale ) {

			switch_to_locale( $locale );

		}

		preg_match_all( '/{[^{]*?:(\d+(\.\d+)?)(:(.*?))?}/mi', $text, $matches, PREG_SET_ORDER );

		foreach ( $matches as $match ) {

			$input_id = $match[1];

			$field    = GFFormsModel::get_field( $form, $input_id );

			if ( ! $field || $field->get_input_type() !== 'date' ) {

				continue;

			}

			$i        = $match[0][0] === '{' ? 4 : 5;

			$modifier = rgar( array_map( 'trim', explode( ',', rgar( $match, $i ) ) ), 0 );

			if ( ! $modifier ) {

				continue;

			}

			$value = GFFormsModel::get_lead_field_value( $entry, $field );

			$value = $field->get_value_merge_tag( $value, $input_id, $entry, $form, $modifier, $value, $url_encode, $esc_html, $format, $nl2br );

			if ( ! $value ) {

				continue;

			}

			$format      = $field->dateFormat ? $field->dateFormat : 'mdy';

			$parsed_date = GFCommon::parse_date( $value, $format );

			// On the Notifications/Confirmation side, & gets encoded to &. Decode it back.

			$modifier = htmlspecialchars_decode( $modifier );

			// For whatever reason, Populate Anything's LMTs works better with `&comma` than `,`. But... date() doesn't

			// like it so let's replace it before we pass it to date().

			$modifier = str_replace( ',', ',', $modifier );

			$timestamp = strtotime( sprintf( '%d-%d-%d', $parsed_date['year'], $parsed_date['month'], $parsed_date['day'] ) );

			// phpcs:ignore WordPress.DateTime.RestrictedFunctions.date_date

			$replace = wp_date( $modifier, $timestamp, new DateTimeZone( 'UTC' ) );

			$text = str_replace( $match[0], $replace, $text );

		}

		// Switch back to default locale.

		if ( $locale ) {

			switch_to_locale( $current_locale );

		}

		return $text;

	}

	public function is_applicable_form( $form ) {

		$form_id = isset( $form['id'] ) ? $form['id'] : $form;

		return empty( $this->_args['form_id'] ) || (int) $form_id === (int) $this->_args['form_id'];

	}

}

# Configuration

new GW_Format_Date_Merge_Tag();

# Apply locale to all forms.

//new GW_Format_Date_Merge_Tag( array(

//	'locale'  => 'fr_FR',

//) );

# Apply locale to a specific form.

//new GW_Format_Date_Merge_Tag( array(

//	'form_id' => 123,

//	'locale' => 'fr_FR',

//) );