private function getManifest()
    {
        if (!isset($this->manifest)) {
            $context = stream_context_create(['http' => ['timeout' => $this->manifestTimeout]]);
            $manifestContents = file_get_contents($this->manifestUrl, false, $context);
            if ($manifestContents === false) {
                throw new \RuntimeException(sprintf('Failed to download manifest: %s', $this->manifestUrl));
            }

            $this->manifest = (array) json_decode($manifestContents, true);
            if (json_last_error() !== JSON_ERROR_NONE) {
                throw new JsonParsingException(
                    'Error parsing manifest file'
                    . (function_exists('json_last_error_msg') ? ': ' . json_last_error_msg() : '')
                );
            }
        }

        return $this->manifest;
    }
private function getManifest()
    {
        if (!isset($this->manifest)) {
            $context = stream_context_create(['http' => ['timeout' => $this->manifestTimeout]]);
            $manifestContents = file_get_contents($this->manifestUrl, false, $context);
            if ($manifestContents === false) {
                throw new \RuntimeException(sprintf('Failed to download manifest: %s', $this->manifestUrl));
            }

            $this->manifest = (array) json_decode($manifestContents, true);
            if (json_last_error() !== JSON_ERROR_NONE) {
                throw new JsonParsingException(
                    'Error parsing manifest file'
                    . (function_exists('json_last_error_msg') ? ': ' . json_last_error_msg() : '')
                );
            }
        }

        return $this->manifest;
    }
private function getManifest ( ) { if ( ! isset ( $ this -> manifest ) ) { $ context = stream_context_create ( [ 'http' => [ 'timeout' => $ this -> manifestTimeout ] ] ) ; $ manifestContents = file_get_contents ( $ this -> manifestUrl , false , $ context ) ; if ( $ manifestContents === false ) { throw new \ RuntimeException ( sprintf ( 'Failed to download manifest: %s' , $ this -> manifestUrl ) ) ; } $ this -> manifest = ( array ) json_decode ( $ manifestContents , true ) ; if ( json_last_error ( ) !== JSON_ERROR_NONE ) { throw new JsonParsingException ( 'Error parsing manifest file' . ( function_exists ( 'json_last_error_msg' ) ? ': ' . json_last_error_msg ( ) : '' ) ) ; } } return $ this -> manifest ; }
Download and decode the JSON manifest file.

@return array
Download and decode the JSON manifest file .