Fix phpstan issues

inc/auto-featured-image/namespace.php

@@ -86,12 +86,16 @@ function load() :void {
 /**
  * Automatically add first image in content as featured image if none is set.
  *
- * @param object|null $post Post Object or null if is called during trashing.
+ * @param WP_Post|null $post Post Object or null if is called during trashing.
  *
  * @link https://wordpress.org/plugins/easy-add-thumbnail/
  */
 function auto_featured_image( WP_Post|null $post ) : void {
 
+	if ( is_null( $post ) ) {
+		return;
+	}
+
 	// Do nothing if the post has already a featured image set.
 	if ( has_post_thumbnail( $post ) ) {
 		return;
@@ -113,8 +117,11 @@ function auto_featured_image( WP_Post|null $post ) : void {
 	if ( $attached_image ) {
 
 		$attachment_values = array_values( $attached_image );
-		set_post_thumbnail( $post->ID, $attachment_values[0]->ID );
-		return;
+
+		if ( isset( $attachment_values[0] ) && $attachment_values[0] instanceof WP_Post ) {
+			set_post_thumbnail( $post->ID, $attachment_values[0]->ID );
+			return;
+		}
 	}
 
 	// Use regex to find image blocks in the post content.

inc/image-optimization/namespace.php

@@ -38,7 +38,7 @@ function bootstrap() :void {
  * @since 2.9.0 as 'wp_handle_upload_prefilter'.
  * @since 4.0.0 Converted to a dynamic hook with `$action`.
  *
- * @param array $file {
+ * @param array<string, int|string> $file {
  *     Reference to a single element from `$_FILES`.
  *
  *     @type string $name     The original name of the file on the client machine.
@@ -47,13 +47,15 @@ function bootstrap() :void {
  *     @type int    $size     The size, in bytes, of the uploaded file.
  *     @type int    $error    The error code associated with this file upload.
  * }
+ *
+ * @return array<string, int|string>
  */
 function compress( array $file ) : array {
 	if ( isset( $file['error'] ) && 0 !== $file['error'] ) {
 		return $file;
 	}
 
-	$mime = explode( '/', $file['type'] );
+	$mime = explode( '/', (string) $file['type'] );
 	if (
 		'image' !== $mime[0]
 		||
@@ -62,7 +64,7 @@ function compress( array $file ) : array {
 		return $file;
 	}
 
-	$file_put_contents = replace( $file['tmp_name'] );
+	$file_put_contents = replace( (string) $file['tmp_name'] );
 
 	if ( is_int( $file_put_contents ) && ! empty( $file_put_contents ) ) {
 		$file['size'] = $file_put_contents;
@@ -85,7 +87,7 @@ function replace( string $path ) : int|false {
 
 	// If somethin went wrong
 	// return, unchanged.
-	if ( ! is_string( $compressed_raw ) || empty( $compressed_raw ) ) {
+	if ( empty( $compressed_raw ) ) {
 		return false;
 	}
 
@@ -118,6 +120,10 @@ function optimize( string $file_path ) : string {
 
 	$raw_image = file_get_contents( $file_path );
 
+	if ( ! is_string( $raw_image ) ) {
+		return '';
+	}
+
 	$imagick->readImageBlob( $raw_image );
 	$imagick->stripImage();
 
@@ -133,6 +139,10 @@ function optimize( string $file_path ) : string {
 	// Get thumbnail image.
 	$imagick->thumbnailImage( $width, $height );
 
+	if ( ! isset( $image_types[2] ) ) {
+		return '';
+	}
+
 	// Set image as based its own type.
 	if ( $image_types[2] === IMAGETYPE_JPEG ) {
 		$imagick->setImageFormat( 'jpeg' );

inc/modern-images-wp/namespace.php

@@ -90,9 +90,9 @@ function filter_options() :void {
  * @version version
  * @author  Carsten Bach
  *
- * @return  [type]       [description]
+ * @return  void
  */
-function wp_ajax_upload_attachment() {
+function wp_ajax_upload_attachment() : void {
 	/**
 	 * If we're not performing our AJAX request, return early.
 	 */

phpstan.neon

@@ -17,4 +17,3 @@ parameters:
     ignoreErrors:
         # Find a nicer way instead of ignoring this Error on every ft-module
         - '#Function Altis\\register_module not found\.#'
-        - '#Function Figuren_Theater\\get_config not found\.#'