send-all-fields.php

<?php
/*
Plugin Name: Contact Form 7 Modules: Send All Fields
Plugin URI: https://katz.co/contact-form-7-hidden-fields/
Description: Send all submitted fields in the message body using one simple tag: <code>[all-fields]</code>
Author: Katz Web Services, Inc.
Author URI: http://www.katz.co
Version: 2.0.2
Text Domain: cf7_modules
Domain Path: languages
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/

add_filter('wpcf7_mail_components', 'all_fields_wpcf7_before_send_mail');

function all_fields_wpcf7_before_send_mail($array) {
	$debug = false;

	if ( $debug ) {
		print_r( $array );
	}
	if ( $debug ) {
		print_r( $_POST );
	}

	$post = $_POST;

	$html = false;
	if ( wpautop( $array['body'] ) == $array['body'] ) {
		$html = true;
	}

	foreach ( $post as $k => $v ) {
		if ( substr( $k, 0, 6 ) == '_wpcf7' || strpos( $k, 'all-fields' ) || $k === '_wpnonce' ) {
			unset( $post["{$k}"] );
		}
	}
	if ( $debug ) {
		print_r( $post );
	}

	$postbody = '';

	if ( $html ) {
		$postbody = apply_filters( 'wpcf7_send_all_fields_format_before', '<dl>', 'html' );
	} else {
		$postbody = apply_filters( 'wpcf7_send_all_fields_format_before', '', 'text' );
	}

	foreach ( $post as $k => $v ) {

		// Remove dupe content. The Hidden and Values are both sent.
		if ( preg_match( '/hidden\-/', $k ) ) {
			continue;
		}

		// If there's no value for the field, don't send it.
		if ( empty( $v ) && false === apply_filters( 'wpcf7_send_all_fields_send_empty_fields', false ) ) {
			continue;
		}

		if ( is_array( $v ) ) {
			$v = implode( ', ', $v );
		}

		// Make the fields easier to read. Thanks, @hitolonen
		$k = apply_filters( 'wpcf7_send_all_fields_format_key', true ) ? ucwords( str_replace( "-", " ", str_replace( "_", " ", $k ) ) ) : $k;

		// Sanitize!
		$k = esc_attr( $k );
		$v = esc_attr( $v );

		if ( $html ) {
			$postbody .= apply_filters( 'wpcf7_send_all_fields_format_item', "<dt style='font-size:1.2em;'><font size='3'><strong style='font-weight:bold;'>{$k}</strong>:</font></dt><dd style='padding:0 0 .5em 1.5em; margin:0;'>{$v}</dd>", $k, $v, 'html' );
		} else {
			$postbody .= apply_filters( 'wpcf7_send_all_fields_format_item', "{$k}: {$v}\n", $k, $v, 'text' );
		}
	}
	if ( $html ) {
		$postbody .= apply_filters( 'wpcf7_send_all_fields_format_after', '</dl>', 'html' );
	} else {
		$postbody .= apply_filters( 'wpcf7_send_all_fields_format_after', '', 'text' );
	}

	if ( $debug ) {
		print_r( $postbody );
	}

	$array['body'] = str_replace( '<p>[all-fields]</p>', $postbody, str_replace( '[all-fields]', $postbody, $array['body'] ) );

	if ( $debug ) {
		die();
	} else {
		return $array;
	}
}

add_filter('wpcf7_collect_mail_tags', 'wpcf7_collect_mail_tags_add_all_fields_tag');

/**
 * Add a all-fields option to the Mail tab's merge tags
 * @since 2.0
 * @param array $mailtags
 */
function wpcf7_collect_mail_tags_add_all_fields_tag( $mailtags = array() ) {

	$mailtags[] = 'all-fields';

	return $mailtags;
}