WP_Image_Editor_GD::load(): true|WP_Error

90	public function load() {91		if ( $this->image ) {92			return true;93		}94 95		if ( ! is_file( $this->file ) && ! preg_match( '|^https?://|', $this->file ) ) {96			return new WP_Error( 'error_loading_image', __( 'File does not exist?' ), $this->file );97		}98 99		// Set artificially high because GD uses uncompressed images in memory.100		wp_raise_memory_limit( 'image' );101 102		$file_contents = @file_get_contents( $this->file );103 104		if ( ! $file_contents ) {105			return new WP_Error( 'error_loading_image', __( 'File does not exist?' ), $this->file );106		}107 108		// Handle WebP and AVIF mime types explicitly, falling back to imagecreatefromstring.109		if (110			function_exists( 'imagecreatefromwebp' ) && ( 'image/webp' === wp_get_image_mime( $this->file ) )111		) {112			$this->image = @imagecreatefromwebp( $this->file );113		} elseif (114			function_exists( 'imagecreatefromavif' ) && ( 'image/avif' === wp_get_image_mime( $this->file ) )115		) {116			$this->image = @imagecreatefromavif( $this->file );117		} else {118			$this->image = @imagecreatefromstring( $file_contents );119		}120 121		if ( ! is_gd_image( $this->image ) ) {122			return new WP_Error( 'invalid_image', __( 'File is not an image.' ), $this->file );123		}124 125		$size = wp_getimagesize( $this->file );126 127		if ( ! $size ) {128			return new WP_Error( 'invalid_image', __( 'Could not read image size.' ), $this->file );129		}130 131		if ( function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' ) ) {132			imagealphablending( $this->image, false );133			imagesavealpha( $this->image, true );134		}135 136		$this->update_size( $size[0], $size[1] );137		$this->mime_type = $size['mime'];138 139		return $this->set_quality();140	}