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Revision 2049 Revision 2107
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	 * @param	array	$options
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	 * @param	array	$options
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	 * @return	mixed
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	 * @return	mixed
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	 */
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	 */
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	function password_hash($password, $algo, array $options = array())
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	function password_hash($password, $algo, array $options = array())
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	{
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	{
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		static $func_override;
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		static $func_overload;
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		isset($func_override) OR $func_override = (extension_loaded('mbstring') && ini_get('mbstring.func_override'));
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		isset($func_overload) OR $func_overload = (extension_loaded('mbstring') && ini_get('mbstring.func_overload'));
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		if ($algo !== 1)
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		if ($algo !== 1)
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		{
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		{
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			trigger_error('password_hash(): Unknown hashing algorithm: '.(int) $algo, E_USER_WARNING);
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			trigger_error('password_hash(): Unknown hashing algorithm: '.(int) $algo, E_USER_WARNING);
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		{
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		{
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			trigger_error('password_hash(): Invalid bcrypt cost parameter specified: '.(int) $options['cost'], E_USER_WARNING);
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			trigger_error('password_hash(): Invalid bcrypt cost parameter specified: '.(int) $options['cost'], E_USER_WARNING);
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			return NULL;
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			return NULL;
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		}
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		}
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		if (isset($options['salt']) && ($saltlen = ($func_override ? mb_strlen($options['salt'], '8bit') : strlen($options['salt']))) < 22)
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		if (isset($options['salt']) && ($saltlen = ($func_overload ? mb_strlen($options['salt'], '8bit') : strlen($options['salt']))) < 22)
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		{
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		{
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			trigger_error('password_hash(): Provided salt is too short: '.$saltlen.' expecting 22', E_USER_WARNING);
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			trigger_error('password_hash(): Provided salt is too short: '.$saltlen.' expecting 22', E_USER_WARNING);
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			return NULL;
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			return NULL;
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		}
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		}
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				// Try not to waste entropy ...
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				// Try not to waste entropy ...
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				is_php('5.4') && stream_set_chunk_size($fp, 16);
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				is_php('5.4') && stream_set_chunk_size($fp, 16);
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				$options['salt'] = '';
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				$options['salt'] = '';
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				for ($read = 0; $read < 16; $read = ($func_override) ? mb_strlen($options['salt'], '8bit') : strlen($options['salt']))
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				for ($read = 0; $read < 16; $read = ($func_overload) ? mb_strlen($options['salt'], '8bit') : strlen($options['salt']))
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				{
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				{
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					if (($read = fread($fp, 16 - $read)) === FALSE)
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					if (($read = fread($fp, 16 - $read)) === FALSE)
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					{
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					{