注意：/ xxx /第33行中的数组到字符串转换

Question

我根本不熟悉PHP，我收到了这个错误

  

注意：数组转换为字符串：

它指示我到第33行（下面）：

/**
 * Generates a security token
 * The token isn't stored into the database and this avoids a database schema change
 * and SQL queries to store, retrieve, and purge (expired) tokens
 * If set to, will expire in TOKEN_EXPIRATION_TIMEFRAME seconds unless otherwise specified
 *
 * @param array $context information to base the token on
 * @param array $options (such as expires, timestamp, key)
 * @return string generated token
 */
function generate($context, $options = array(  )) {
        $context = implode( '/', (array)$context ); // <-- Line #33

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