Shortcode to echo ACF field inline

acf_field.php

<?php

/**
 * function that will generate the shortcode's output
 * @param  array  $atts
 * @return string $output
 */
function func_div_myshortcode( $atts ) {
	$atts = shortcode_atts(
		array()
		, $atts , 'myshortcode' );

	$output .= '<div class="myclass">' . get_field( 'myfield' ) . '</div>';

	return $output;
}

// add the shortcode so that wordpress knows what to do
add_shortcode( 'myshortcode' , 'func_div_myshortcode' );

// In the texteditor you can add [myshortcode] inline. It will try to match the shortcode it comes across when outputting the page/post. If found it will echo the return-value from the function (func_div_myshortcode) $output. The tricky part it that it will only take a return value, you can not use echo in the function. Well technically you can, but it won't give you the result that you want. You will need the output to a returned string.