Moving into the Future without Losing the Past: Children's Services in the Information Age.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Fasick, Adele M.
Format:	Recurso educativo Open Access
Language:	en
Published:	1984
Subjects:	Children Futures (of Society) Librarians Library Material Selection Library Materials Library Role Library Services Microcomputers Reading Materials Television
Online Access:	Acceder al recurso
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author	Fasick, Adele M.
author_facet	Fasick, Adele M. Fasick, Adele M.
collection	Education Resources Information Center
contents	Moving into the Future without Losing the Past: Children's Services in the Information Age. Fasick, Adele M. Children Futures (of Society) Librarians Library Material Selection Library Materials Library Role Library Services Microcomputers Reading Materials Television Discussion of the impact of new technologies (e.g., television, microcomputers) on library services to children highlights new intellectual demands, increased sophistication and pressure on families, meaning of changes for children's librarians, changing print materials, maintaining values of past, and selecting materials appropriate for children's needs. Five sources are given. (EJS)
format	Recurso educativo Open Access
id	eric_EJ304449
institution	ERIC Institute of Education Sciences
language	en
publishDate	1984
record_format	eric
spellingShingle	Moving into the Future without Losing the Past: Children's Services in the Information Age. Fasick, Adele M. Children Futures (of Society) Librarians Library Material Selection Library Materials Library Role Library Services Microcomputers Reading Materials Television Moving into the Future without Losing the Past: Children's Services in the Information Age. Fasick, Adele M. Children Futures (of Society) Librarians Library Material Selection Library Materials Library Role Library Services Microcomputers Reading Materials Television Discussion of the impact of new technologies (e.g., television, microcomputers) on library services to children highlights new intellectual demands, increased sophistication and pressure on families, meaning of changes for children's librarians, changing print materials, maintaining values of past, and selecting materials appropriate for children's needs. Five sources are given. (EJS)
title	Moving into the Future without Losing the Past: Children's Services in the Information Age.
topic	Children Futures (of Society) Librarians Library Material Selection Library Materials Library Role Library Services Microcomputers Reading Materials Television
url	https://eric.ed.gov/?id=EJ304449

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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