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Bibliographic Details
Main Author:	Hopkins, Janet
Format:	Recurso educativo Open Access
Language:	en
Published:	2006
Subjects:	Assistive Technology School Libraries Accessibility (for Disabled)
Online Access:	https://eric.ed.gov/?id=EJ762335
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Assistive Technology: 10 Things to Know Hopkins, Janet Assistive Technology School Libraries Accessibility (for Disabled) An accessible library media center (LMC) offers many benefits for the school community. Library media specialists can support their education colleagues in delivering inclusive learning opportunities to a wide range of students. Assistive technology (AT) deployment in the LMC can benefit students and teachers by spotlighting low-, mid-, and high-tech options that support students who have learning difficulties. Here are 10 things to know about AT: (1) AT enhances information accessibility for all LMC users; (2) Online resources are available to support educators who implement AT; (3) AT implementation doesn't have to cost a lot; (4) Additional funding may be available to support AT deployment; (5) AT-user orientation and training is a must; (6) Library media center AT deployment can be accomplished in logical steps; (7) Library media center AT deployment can be accomplished through collaboration; (8) Library media center AT user data collection will be useful for future planning; (9) Portable library media center AT can benefit students throughout the school; and (10) Effective library media center AT support is an ongoing commitment.

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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