adsforwp_check_ads_in_group($post->ID); } if(empty($in_group)){ add_meta_box( 'adsforwp-location', esc_html__( 'AMP', 'ads-for-wp' ), array( $this, 'adsforwp_meta_box_callback' ), array('adsforwp','adsforwp-groups'), 'side', 'low' ); } } function adsforwp_amp_comp_get_meta( $value ) { global $post; $field = get_post_meta( $post->ID, $value, true ); if ( ! empty( $field ) ) { return is_array( $field ) ? stripslashes_deep( $field ) : stripslashes( wp_kses_decode_entities( $field ) ); } else { return false; } } function adsforwp_meta_box_callback( $post) { wp_nonce_field( 'adsforwp_amp_compatibility_nonce', 'adsforwp_amp_compatibility_nonce' ); ?>

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