woocommerce de resim adında özel alan oluşturmak istiyorum ama hata veriyor

orjinal kod

$html .= sprintf( '<img src="%s" alt="%s" class="wp-post-image" />', esc_url( wc_placeholder_img_src( 'woocommerce_single' ) ), esc_html__( 'Awaiting product image', 'woocommerce' ) );

değiştirdiğim kod

$html .= sprintf( '<img src="'<?php echo get_post_meta($post->ID, "resim", true); ?>'" alt="%s" class="wp-post-image" />', esc_url( wc_placeholder_img_src( 'woocommerce_single' ) ), esc_html__( 'Awaiting product image', 'woocommerce' ) );

verdiği hata: Parse error: syntax error, unexpected '?' in C:wamp64wwwwpwp-contentpluginswoocommercetemplatessingle-productproduct-image.php on line 43