PHP & WordPress Snippets

browser_images_support.php

define('BROWSER_AVIF', strpos($_SERVER['HTTP_ACCEPT'], 'image/avif') !== false);
define('BROWSER_WEBP', strpos($_SERVER['HTTP_ACCEPT'], 'image/webp') !== false);

disable_comments.php

add_action('admin_init', function () {
    // Redirect any user trying to access comments page
    global $pagenow;
    
    if ($pagenow === 'edit-comments.php') {
        wp_redirect(admin_url());
        exit;
    }

    // Remove comments metabox from dashboard
    remove_meta_box('dashboard_recent_comments', 'dashboard', 'normal');

    // Disable support for comments and trackbacks in post types
    foreach (get_post_types() as $post_type) {
        if (post_type_supports($post_type, 'comments')) {
            remove_post_type_support($post_type, 'comments');
            remove_post_type_support($post_type, 'trackbacks');
        }
    }
});

// Close comments on the front-end
add_filter('comments_open', '__return_false', 20, 2);
add_filter('pings_open', '__return_false', 20, 2);

// Hide existing comments
add_filter('comments_array', '__return_empty_array', 10, 2);

// Remove comments page in menu
add_action('admin_menu', function () {
    remove_menu_page('edit-comments.php');
});

// Remove comments links from admin bar
add_action('init', function () {
    if (is_admin_bar_showing()) {
        remove_action('admin_bar_menu', 'wp_admin_bar_comments_menu', 60);
    }
});

disable_gutenberg.php

// Complete disable
add_filter('use_block_editor_for_post', '__return_false', 10);
add_filter('use_block_editor_for_post_type', '__return_false', 10);


// Enable only for posts
add_filter( 'use_block_editor_for_post', '__return_false' );
add_filter( 'use_block_editor_for_post', 'my_disable_gutenberg', 10, 2 );
function my_disable_gutenberg( $can_edit, $post ) {
	if( $post->post_type == 'post' ) {
		return true;
	}
	return false;
}

// Enable for certain template
add_filter( 'use_block_editor_for_post', 'my_disable_gutenberg', 10, 2 );

function my_disable_gutenberg( $can_edit, $post ) {
  if( $post->post_type == 'page' &&
    get_page_template_slug( $post->ID ) == 'page-gutenberg.php' ) {
    return true;
  }
  return false;
}

polylang_keep_get_parameter.php

// Keep GET params for Polylang links
function pll_url_query_string( $url ) {
	if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {
		return $url . '?' . $_SERVER['QUERY_STRING'];
	}
	return $url;
}
add_filter( 'pll_the_language_link', 'pll_url_query_string' );

remove_slug_from_cpt_url.php

function emlaw_remove_cpt_slug_from_url( $post_link, $post ) {
	if ( 'practice-areas' === $post->post_type && 'publish' === $post->post_status ) {
		$post_link = str_replace( '/' . $post->post_type . '/', '/', $post_link );
	}
	return $post_link;
}
add_filter( 'post_type_link', 'emlaw_remove_cpt_slug_from_url', 10, 2 );


function emlaw_parse_cpt_page_on_url_without_slug( $query ) {
	if ( ! $query->is_main_query() || 2 != count( $query->query ) || ! isset( $query->query['page'] ) ) {
		return;
	}

	if ( ! empty( $query->query['name'] ) ) {
		$query->set( 'post_type', array( 'post', 'practice-areas', 'page' ) );
	}
}
add_action( 'pre_get_posts', 'emlaw_parse_cpt_page_on_url_without_slug' );

woocommerce_ajax_code_fragment.php

// Ensure cart contents update when products are added to the cart via AJAX (place the following in functions.php)
add_filter( 'woocommerce_add_to_cart_fragments', 'woocommerce_header_add_to_cart_fragment' );

function woocommerce_header_add_to_cart_fragment( $fragments ) {
	ob_start();
	?>
	<a class="cart-contents" href="<?php echo wc_get_cart_url(); ?>" title="<?php _e( 'View your shopping cart' ); ?>"><?php echo sprintf (_n( '%d item', '%d items', WC()->cart->get_cart_contents_count() ), WC()->cart->get_cart_contents_count() ); ?> - <?php echo WC()->cart->get_cart_total(); ?></a> 
	<?php
	
	$fragments['a.cart-contents'] = ob_get_clean();
	
	return $fragments;
}

wp_get_page_id.php

// Get The Page ID You Need
get_option( 'woocommerce_shop_page_id' ); 
get_option( 'woocommerce_cart_page_id' ); 
get_option( 'woocommerce_checkout_page_id' );
get_option( 'woocommerce_pay_page_id' ); 
get_option( 'woocommerce_thanks_page_id' ); 
get_option( 'woocommerce_myaccount_page_id' ); 
get_option( 'woocommerce_edit_address_page_id' ); 
get_option( 'woocommerce_view_order_page_id' ); 
get_option( 'woocommerce_terms_page_id' ); 

wp_is_mobile_exclude_tablet.php

function gg_exclude_tablets_from_wp_is_mobile( $is_mobile ) {
	if (
            strpos($_SERVER['HTTP_USER_AGENT'], 'iPad') !== false ||
            strpos($_SERVER['HTTP_USER_AGENT'], 'Tablet') !== false
    ) {
		$is_mobile = false;
	}
	return $is_mobile ;
}
add_filter( 'wp_is_mobile', 'gg_exclude_tablets_from_wp_is_mobile' );