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Revision 68 Revision 1257
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	 * @return	void
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	 * @return	void
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	 */
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	 */
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	public function __construct(array $params = array())
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	public function __construct(array $params = array())
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	{
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	{
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		$this->_drivers = array(
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		$this->_drivers = array(
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			'mcrypt' => defined('MCRYPT_DEV_URANDOM'),
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			'mcrypt'  => defined('MCRYPT_DEV_URANDOM'),
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			// While OpenSSL is available for PHP 5.3.0, an IV parameter
 - 
 
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			// for the encrypt/decrypt functions is only available since 5.3.3
 - 
 
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			'openssl' => (is_php('5.3.3') && extension_loaded('openssl'))
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			'openssl' => extension_loaded('openssl')
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		);
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		);
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		if ( ! $this->_drivers['mcrypt'] && ! $this->_drivers['openssl'])
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		if ( ! $this->_drivers['mcrypt'] && ! $this->_drivers['openssl'])
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		{
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		{
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	/**
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	/**
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	 * Byte-safe strlen()
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	 * Byte-safe strlen()
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	 *
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	 *
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	 * @param	string	$str
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	 * @param	string	$str
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	 * @return	integer
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	 * @return	int
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	 */
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	 */
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	protected static function strlen($str)
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	protected static function strlen($str)
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	{
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	{
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		return (self::$func_override)
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		return (self::$func_override)