wp_get_attachment_image_src( int $attachment_id, string|int[] $size = 'thumbnail', bool $icon = false ): array|false

976function wp_get_attachment_image_src( $attachment_id, $size = 'thumbnail', $icon = false ) {977	// Get a thumbnail or intermediate image if there is one.978	$image = image_downsize( $attachment_id, $size );979	if ( ! $image ) {980		$src = false;981 982		if ( $icon ) {983			$src = wp_mime_type_icon( $attachment_id, '.svg' );984 985			if ( $src ) {986				/** This filter is documented in wp-includes/post.php */987				$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );988 989				$src_file = $icon_dir . '/' . wp_basename( $src );990 991				list( $width, $height ) = wp_getimagesize( $src_file );992 993				$ext = strtolower( substr( $src_file, -4 ) );994 995				if ( '.svg' === $ext ) {996					// SVG does not have true dimensions, so this assigns width and height directly.997					$width  = 48;998					$height = 64;999				} else {1000					list( $width, $height ) = wp_getimagesize( $src_file );1001				}1002			}1003		}1004 1005		if ( $src && $width && $height ) {1006			$image = array( $src, $width, $height, false );1007		}1008	}1009	/**1010	 * Filters the attachment image source result.1011	 *1012	 * @since 4.3.01013	 *1014	 * @param array|false  $image         {1015	 *     Array of image data, or boolean false if no image is available.1016	 *1017	 *     @type string $0 Image source URL.1018	 *     @type int    $1 Image width in pixels.1019	 *     @type int    $2 Image height in pixels.1020	 *     @type bool   $3 Whether the image is a resized image.1021	 * }1022	 * @param int          $attachment_id Image attachment ID.1023	 * @param string|int[] $size          Requested image size. Can be any registered image size name, or1024	 *                                    an array of width and height values in pixels (in that order).1025	 * @param bool         $icon          Whether the image should be treated as an icon.1026	 */1027	return apply_filters( 'wp_get_attachment_image_src', $image, $attachment_id, $size, $icon );1028}
When	Instructions	Calls it makes
always	17–27	`image_downsize(), apply_filters()`
always	25	`image_downsize(), wp_mime_type_icon(), apply_filters()`
`$ext === ".svg"`	56–63	`image_downsize(), wp_mime_type_icon(), apply_filters(), wp_basename(), wp_getimagesize(), strtolower(), apply_filters()`
`$ext !== ".svg"`	61–68	`image_downsize(), wp_mime_type_icon(), apply_filters(), wp_basename(), wp_getimagesize(), strtolower(), wp_getimagesize(), apply_filters()`
PHP	Compiled	Executed	Branches	Notes
8.6-dev	71	17–68	7
8.5	71	17–68	7
8.4	71	17–68	7	3 fewer instructions than PHP 8.3
8.3	74	17–71	7
8.2	74	17–71	7	2 fewer instructions than PHP 8.1
8.1	76	17–73	7
7.4	76	17–73	7