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 *
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 *
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 * An open source application development framework for PHP
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 * An open source application development framework for PHP
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 *
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 *
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 * This content is released under the MIT License (MIT)
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 * This content is released under the MIT License (MIT)
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 *
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 *
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 * Copyright (c) 2014 - 2018, British Columbia Institute of Technology
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 * Copyright (c) 2014 - 2019, British Columbia Institute of Technology
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 *
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * THE SOFTWARE.
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 * THE SOFTWARE.
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 *
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 *
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 * @package	CodeIgniter
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 * @package	CodeIgniter
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 * @author	EllisLab Dev Team
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 * @author	EllisLab Dev Team
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 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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 * @copyright	Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
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 * @copyright	Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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 * @license	http://opensource.org/licenses/MIT	MIT License
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 * @license	https://opensource.org/licenses/MIT	MIT License
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 * @link	https://codeigniter.com
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 * @link	https://codeigniter.com
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 * @since	Version 1.3.0
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 * @since	Version 1.3.0
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 * @filesource
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 * @filesource
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 */
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 */
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defined('BASEPATH') OR exit('No direct script access allowed');
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defined('BASEPATH') OR exit('No direct script access allowed');
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			empty($this->encrypt['ssl_cert'])   OR $ssl['cert']   = $this->encrypt['ssl_cert'];
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			empty($this->encrypt['ssl_cert'])   OR $ssl['cert']   = $this->encrypt['ssl_cert'];
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			empty($this->encrypt['ssl_ca'])     OR $ssl['ca']     = $this->encrypt['ssl_ca'];
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			empty($this->encrypt['ssl_ca'])     OR $ssl['ca']     = $this->encrypt['ssl_ca'];
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			empty($this->encrypt['ssl_capath']) OR $ssl['capath'] = $this->encrypt['ssl_capath'];
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			empty($this->encrypt['ssl_capath']) OR $ssl['capath'] = $this->encrypt['ssl_capath'];
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			empty($this->encrypt['ssl_cipher']) OR $ssl['cipher'] = $this->encrypt['ssl_cipher'];
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			empty($this->encrypt['ssl_cipher']) OR $ssl['cipher'] = $this->encrypt['ssl_cipher'];
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			if ( ! empty($ssl))
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			if (isset($this->encrypt['ssl_verify']))
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			{
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				$client_flags |= MYSQLI_CLIENT_SSL;
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			{
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				if ($this->encrypt['ssl_verify'])
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				{
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					defined('MYSQLI_OPT_SSL_VERIFY_SERVER_CERT') && $this->_mysqli->options(MYSQLI_OPT_SSL_VERIFY_SERVER_CERT, TRUE);
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				}
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				// Apparently (when it exists), setting MYSQLI_OPT_SSL_VERIFY_SERVER_CERT
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				// to FALSE didn't do anything, so PHP 5.6.16 introduced yet another
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				// constant ...
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				//
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				// https://secure.php.net/ChangeLog-5.php#5.6.16
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				// https://bugs.php.net/bug.php?id=68344
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				if (isset($this->encrypt['ssl_verify']))
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				elseif (defined('MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT'))
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				{
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					if ($this->encrypt['ssl_verify'])
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					{
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						defined('MYSQLI_OPT_SSL_VERIFY_SERVER_CERT') && $this->_mysqli->options(MYSQLI_OPT_SSL_VERIFY_SERVER_CERT, TRUE);
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					}
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					// Apparently (when it exists), setting MYSQLI_OPT_SSL_VERIFY_SERVER_CERT
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					// to FALSE didn't do anything, so PHP 5.6.16 introduced yet another
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					// constant ...
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					//
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					// https://secure.php.net/ChangeLog-5.php#5.6.16
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					// https://bugs.php.net/bug.php?id=68344
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					elseif (defined('MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT'))
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					{
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				{
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						$client_flags |= MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
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					}
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					$client_flags |= MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
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				}
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			}
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				}
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			if ( ! empty($ssl))
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			{
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				$client_flags |= MYSQLI_CLIENT_SSL;
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				$client_flags |= MYSQLI_CLIENT_SSL;
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				$this->_mysqli->ssl_set(
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				$this->_mysqli->ssl_set(
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					isset($ssl['key'])    ? $ssl['key']    : NULL,
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					isset($ssl['key'])    ? $ssl['key']    : NULL,
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	 * @param	bool	$prefix_limit
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	 * @param	bool	$prefix_limit
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	 * @return	string
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	 * @return	string
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	 */
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	 */
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	protected function _list_tables($prefix_limit = FALSE)
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	protected function _list_tables($prefix_limit = FALSE)
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	{
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	{
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		$sql = 'SHOW TABLES FROM '.$this->escape_identifiers($this->database);
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		$sql = 'SHOW TABLES FROM '.$this->_escape_char.$this->database.$this->_escape_char;
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		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
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		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
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		{
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		{
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			return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
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			return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";