sabrina-zeidan

// Get posts with no thumbnails
//add_action('wp_head', 'sz_posts_without_thumbs');
function sz_posts_without_thumbs() {
      $args = array(
        'post_type'      => 'post',
        'post_status'    => 'publish',
        'posts_per_page' => -1, 
        'fields'         => 'ids',
        'no_found_rows'  => true,
        'ignore_sticky_posts' => true,

sabrina-zeidan

//SZ Compare queries performance
// Function to fetch and display random posts using the initial slow method
function fetch_random_posts_initial() {
    $start_time = microtime(true);

    $args = array(
        'cat'                 => array(1, 9, 10, 11, 44, 94),
        'posts_per_page'      => 3,
        'no_found_rows'       => true,
        'ignore_sticky_posts' => true,

sabrina-zeidan

function delete_transients_with_prefix( $prefix ) {
    foreach ( get_transient_keys_with_prefix( $prefix ) as $key ) {
       // delete_transient( $key );
        echo "<br>". $key." ".get_transient( $key );
    }
}

/**
 * Gets all transient keys in the database with a specific prefix.
 *

sabrina-zeidan

//This goes in functions.php or plugin file or wherever

function dump_hook( $tag, $hook ) {
    ksort($hook);

    echo "<pre>>>>>>\t$tag<br>";

    foreach( $hook as $priority => $functions ) {

        echo $priority;

sabrina-zeidan

RewriteEngine On

# Check if the request is for a PNG or JPEG file
RewriteCond %{REQUEST_FILENAME} \.(png|jpe?g)$

# Check if a WebP version of the file exists
RewriteCond %{REQUEST_FILENAME}.webp -f

# Redirect to the WebP version of the file
RewriteRule ^(.+)\.(png|jpe?g)$ $1.$2.webp [NC,L]

sabrina-zeidan

//Measure performance of some WP funcitons
		$startTime = microtime(true);
		$guarded_pages = get_posts([
			'posts_per_page' => 100,
			'no_found_rows'  => true,
			'post_type'      => SpeedGuard_Admin::$cpt_name,
			'post_status'    => 'publish',
			'fields'         => 'ids'
		] );

sabrina-zeidan

/** Disable repeat purchase V 22.20 7:40 -- on Adding to Cart check **/

add_filter( 'woocommerce_add_to_cart_validation', 'limit_cart_items_from_category', 10, 5 );
function limit_cart_items_from_category ( $passed, $product_id, $quantity, $variation_id = 0, $variations = null ){
$current_product_id = ($variation_id === 0) ? $product_id : $variation_id;
	// Loop through cart items checking if the product is already in cart
    foreach ( WC()->cart->get_cart() as $cart_item ){
        if( $cart_item['data']->get_id() == $current_product_id ) {
            wc_add_notice( __('This product is already in your cart.', 'woocommerce' ), 'error' );
            return false;

sabrina-zeidan

upstream php {
  {{#each fastcgi_servers}}
  server {{this}};
  {{/each}}
}

# SZ START
# Check if client is capable of handling webp
map $http_accept $webp_suffix {
    default "";

sabrina-zeidan

// Generate image alt from the post title -- for the first image in the post
add_filter('the_content', 'add_alt_tags', 99999);
function add_alt_tags($content) {
	global $post;
	preg_match_all('/<img[^>]+>/i', $content, $images);
	if(!is_null($images)) 	{
		foreach($images[0] as $index => $value) {
			//If no alt
		//	if(!preg_match('/alt=/', $value)) {
				$new_img = str_replace('<img', '<img alt="'.get_the_title().'"', $images[0][$index]);

sabrina-zeidan

// Avoid loading unused assets, both JS and CSS
// Removes both CSS and JS
// For Full Site Editing Theme!
// In a better world block's author makes sure the block's assests are loaded only if block is actually in use (via enqueue_block_assets). For other cases we can do it ourselves
// In this example I load Swiper's block assets only where the block is used
// TODO: Works for content on Singular content only. if block is elsewhere or it's archive use this https://wordpress.stackexchange.com/questions/392493/find-if-widget-block-is-active

add_filter( 'style_loader_tag', 'sz_stop_loading_unused_block_crap', 9999, 3 ); 
add_filter( 'script_loader_tag', 'sz_stop_loading_unused_block_crap', 10, 3 );
function sz_stop_loading_unused_block_crap( $tag, $handle, $src ) {