src/Guzzle/Plugin/Cookie/CookieJar/FileCookieJar.php
protected function persist()
    {
        if (false === file_put_contents($this->filename, $this->serialize())) {
            // @codeCoverageIgnoreStart
            throw new RuntimeException('Unable to open file ' . $this->filename);
            // @codeCoverageIgnoreEnd
        }
    }
protected function persist()
    {
        if (false === file_put_contents($this->filename, $this->serialize())) {
            // @codeCoverageIgnoreStart
            throw new RuntimeException('Unable to open file ' . $this->filename);
            // @codeCoverageIgnoreEnd
        }
    }
protected function persist ( ) { if ( false === file_put_contents ( $ this -> filename , $ this -> serialize ( ) ) ) { // @codeCoverageIgnoreStart throw new RuntimeException ( 'Unable to open file ' . $ this -> filename ) ; // @codeCoverageIgnoreEnd } }
Save the contents of the data array to the file

@throws RuntimeException if the file cannot be found or created
Save the contents of the data array to the file