WP_Theme_JSON_Resolver::read_json_file( string $file_path )

Source

File: wp-includes/class-wp-theme-json-resolver.php

private static function read_json_file( $file_path ) {
		$config = array();
		if ( $file_path ) {
			$decoded_file = json_decode(
				file_get_contents( $file_path ),
				true
			);

			$json_decoding_error = json_last_error();
			if ( JSON_ERROR_NONE !== $json_decoding_error ) {
				trigger_error( "Error when decoding a theme.json schema at path $file_path " . json_last_error_msg() );
				return $config;
			}

			if ( is_array( $decoded_file ) ) {
				$config = $decoded_file;
			}
		}
		return $config;
	}