Get Image ID from Image URL WordPress

get-image-id-from-image-url-wordpress.php

<?php
function getImageId($url) {
		$dir = wp_upload_dir();
		if ( false !== strpos( $url, $dir['baseurl'] . '/' ) ) { // Is URL in uploads directory?
			$file = basename( $url );
			$query_args = array(
				'post_type'   => 'attachment',
				'post_status' => 'inherit',
				'fields'      => 'ids',
				'meta_query'  => array(
					array(
						'value'   => $file,
						'compare' => 'LIKE',
						'key'     => '_wp_attachment_metadata',
					),
				)
			);
			$query = new WP_Query( $query_args );
			if ( $query->have_posts() ) {
				foreach ( $query->posts as $post_id ) {
					$meta = wp_get_attachment_metadata( $post_id );
					$original_file       = basename( $meta['file'] );
					$cropped_image_files = wp_list_pluck( $meta['sizes'], 'file' );
					if ( $original_file === $file || in_array( $file, $cropped_image_files ) ) {
						$attachment_id = $post_id;
						break;
					}
				}
			}
		}
		return $attachment_id;
}