Laserdisc Technology Enters Mainstream.

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Author:	Stephens, Kent
Format:	Recurso educativo Open Access
Language:	en
Published:	1986
Subjects:	College Libraries Databases Display Systems Higher Education Indexes Library Automation Library Catalogs Library Services Man Machine Systems Online Searching Online Systems Periodicals
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

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author	Stephens, Kent
author_facet	Stephens, Kent Stephens, Kent
collection	Education Resources Information Center
contents	Laserdisc Technology Enters Mainstream. Stephens, Kent College Libraries Databases Display Systems Higher Education Indexes Library Automation Library Catalogs Library Services Man Machine Systems Online Searching Online Systems Periodicals A laserdisc periodical index (InfoTrac) that offers relatively sophisticated search capabilities without librarian assistance or user training is now popular college library research tool. The index database consists of more than half million references to articles and reviews published since 1982 in 1,000 general interest, business, and technical periodicals. (EJS)
format	Recurso educativo Open Access
id	eric_EJ336202
institution	ERIC Institute of Education Sciences
language	en
publishDate	1986
record_format	eric
spellingShingle	Laserdisc Technology Enters Mainstream. Stephens, Kent College Libraries Databases Display Systems Higher Education Indexes Library Automation Library Catalogs Library Services Man Machine Systems Online Searching Online Systems Periodicals Laserdisc Technology Enters Mainstream. Stephens, Kent College Libraries Databases Display Systems Higher Education Indexes Library Automation Library Catalogs Library Services Man Machine Systems Online Searching Online Systems Periodicals A laserdisc periodical index (InfoTrac) that offers relatively sophisticated search capabilities without librarian assistance or user training is now popular college library research tool. The index database consists of more than half million references to articles and reviews published since 1982 in 1,000 general interest, business, and technical periodicals. (EJS)
title	Laserdisc Technology Enters Mainstream.
topic	College Libraries Databases Display Systems Higher Education Indexes Library Automation Library Catalogs Library Services Man Machine Systems Online Searching Online Systems Periodicals
url	https://eric.ed.gov/?id=EJ336202

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// 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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