Get custom field shortcode

get_custom_fields.php

<?php
/*
 * Plugin Name:       Get Custom Field Shortcode
 * Description:       Display custom fields in your WordPress site
 * Version:           1.0
 */

/**
 * Get Custom Field Shortcode
 *
 * @param array $atts
 *
 * @return string
 *
 * usage: [get_custom_field custom_field="my_custom_field"]
 */
add_shortcode(  'get_custom_field', function( $atts) {
	$atts = shortcode_atts( array(
		'custom_ield' => '',
	), $atts, 'get_custom_field' );
	$custom_field = $atts['custom_field'];
	$custom_field_value = get_post_meta( get_the_ID(), $custom_field, true );
	return wp_kses_post($custom_field_value);
});