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Bibliographic Details
Main Author:	Sergio Monsalve
Format:	Artículo científico
Language:	es
Published:	Universidad Externado de Colombia 2002
Subjects:	Economía y Finanzas teoría de juegos análisis económico toma de decisiones juegos evolucionarios comportamiento económico
Online Access:	https://www.redalyc.org/articulo.oa?id=41900707
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Teoría de juegos: ¿hacia dónde vamos? (60 años después de von Neumann y Morgenstern) Sergio Monsalve Economía y Finanzas teoría de juegos análisis económico toma de decisiones juegos evolucionarios comportamiento económico En el presente artículo se señalan los principales problemas de lautilización de la teoría de juegos como herramienta del análisis económico.A su vez se indican las nuevas perspectivas de los conceptossolución, teniendo en cuenta el contexto, y finalmente se realizanalgunos comentarios sobre el futuro del área. 2002 artículo científico 0124-5996 https://www.redalyc.org/articulo.oa?id=41900707 es http://www.redalyc.org/revista.oa?id=419 Revista de Economía Institucional application/pdf Universidad Externado de Colombia Revista de Economía Institucional (Colombia) Num.7 Vol.4

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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