ACF Blocks: Render block spacing string for inline style

acf_blockspacing.php

/**
 * Given an $block object from an ACF block for gutenberg,
 * This will return a string of CSS inline values suitable for
 * inclusion in the block output in PHP.
 *
 * @param  mixed $block
 * @return $style as string
 */
function acf_blocks_calculate_spacing($block) {

	$style = '';
	$padding = array();
	$margin = array();

	if (isset($block['style']['spacing']['padding'])) {

		$padding = $block['style']['spacing']['padding'];

		foreach ($padding as $rule => $value) {
			if ( str_starts_with( $value, 'var:') ) {
				$var_position = strrpos($value, '|');
				$variable = substr($value, $var_position );
				$style .= 'padding-' . $rule . ':var(--wp--preset--spacing--' . $variable . '); ';
			} else {
				$style .= 'padding-' . $rule . ':' . $value . '; ';
			}
		}
	}

	if (isset($block['style']['spacing']['margin'])) {

		$margin = $block['style']['spacing']['margin'];

		foreach ($margin as $rule => $value) {
			if ( str_starts_with( $value, 'var:') ) {
				$var_position = strrpos($value, '|');
				$variable = substr($value, $var_position + 1 );
				$style .= 'margin-' . $rule . ':var(--wp--preset--spacing--' . $variable . '); ';
			} else {
				$style .= 'margin-' . $rule . ':' . $value . '; ';
			}
		}
	}

	return $style;
	// echo '<div style="' . $style . '">Block content</div>'; 
}