system/database/drivers/mysqli/mysqli_result.php
<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2019 - 2022, CodeIgniter Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
* @license https://opensource.org/licenses/MIT MIT License
* @link https://codeigniter.com
* @since Version 1.3.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');
/**
* MySQLi Result Class
*
* This class extends the parent result class: CI_DB_result
*
* @package CodeIgniter
* @subpackage Drivers
* @category Database
* @author EllisLab Dev Team
* @link https://codeigniter.com/userguide3/database/
*/
class CI_DB_mysqli_result extends CI_DB_result {
/**
* Number of rows in the result set
*
* @return int
*/
public function num_rows()
{
return is_int($this->num_rows)
? $this->num_rows
: $this->num_rows = $this->result_id->num_rows;
}
// --------------------------------------------------------------------
/**
* Number of fields in the result set
*
* @return int
*/
public function num_fields()
{
return $this->result_id->field_count;
}
// --------------------------------------------------------------------
/**
* Fetch Field Names
*
* Generates an array of column names
*
* @return array
*/
public function list_fields()
{
$field_names = array();
$this->result_id->field_seek(0);
while ($field = $this->result_id->fetch_field())
{
$field_names[] = $field->name;
}
return $field_names;
}
// --------------------------------------------------------------------
/**
* Field data
*
* Generates an array of objects containing field meta-data
*
* @return array
*/
public function field_data()
{
$retval = array();
$field_data = $this->result_id->fetch_fields();
for ($i = 0, $c = count($field_data); $i < $c; $i++)
{
$retval[$i] = new stdClass();
$retval[$i]->name = $field_data[$i]->name;
$retval[$i]->type = static::_get_field_type($field_data[$i]->type);
$retval[$i]->max_length = $field_data[$i]->max_length;
$retval[$i]->primary_key = (int) ($field_data[$i]->flags & MYSQLI_PRI_KEY_FLAG);
$retval[$i]->default = $field_data[$i]->def;
}
return $retval;
}
// --------------------------------------------------------------------
/**
* Get field type
*
* Extracts field type info from the bitflags returned by
* mysqli_result::fetch_fields()
*
* @used-by CI_DB_mysqli_result::field_data()
* @param int $type
* @return string
*/
private static function _get_field_type($type)
{
static $map;
isset($map) OR $map = array(
MYSQLI_TYPE_DECIMAL => 'decimal',
MYSQLI_TYPE_BIT => 'bit',
MYSQLI_TYPE_TINY => 'tinyint',
MYSQLI_TYPE_SHORT => 'smallint',
MYSQLI_TYPE_INT24 => 'mediumint',
MYSQLI_TYPE_LONG => 'int',
MYSQLI_TYPE_LONGLONG => 'bigint',
MYSQLI_TYPE_FLOAT => 'float',
MYSQLI_TYPE_DOUBLE => 'double',
MYSQLI_TYPE_TIMESTAMP => 'timestamp',
MYSQLI_TYPE_DATE => 'date',
MYSQLI_TYPE_TIME => 'time',
MYSQLI_TYPE_DATETIME => 'datetime',
MYSQLI_TYPE_YEAR => 'year',
MYSQLI_TYPE_NEWDATE => 'date',
MYSQLI_TYPE_INTERVAL => 'interval',
MYSQLI_TYPE_ENUM => 'enum',
MYSQLI_TYPE_SET => 'set',
MYSQLI_TYPE_TINY_BLOB => 'tinyblob',
MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob',
MYSQLI_TYPE_BLOB => 'blob',
MYSQLI_TYPE_LONG_BLOB => 'longblob',
MYSQLI_TYPE_STRING => 'char',
MYSQLI_TYPE_VAR_STRING => 'varchar',
MYSQLI_TYPE_GEOMETRY => 'geometry'
);
return isset($map[$type]) ? $map[$type] : $type;
}
// --------------------------------------------------------------------
/**
* Free the result
*
* @return void
*/
public function free_result()
{
if (is_object($this->result_id))
{
$this->result_id->free();
$this->result_id = FALSE;
}
}
// --------------------------------------------------------------------
/**
* Data Seek
*
* Moves the internal pointer to the desired offset. We call
* this internally before fetching results to make sure the
* result set starts at zero.
*
* @param int $n
* @return bool
*/
public function data_seek($n = 0)
{
return $this->result_id->data_seek($n);
}
// --------------------------------------------------------------------
/**
* Result - associative array
*
* Returns the result set as an array
*
* @return array
*/
protected function _fetch_assoc()
{
return $this->result_id->fetch_assoc();
}
// --------------------------------------------------------------------
/**
* Result - object
*
* Returns the result set as an object
*
* @param string $class_name
* @return object
*/
protected function _fetch_object($class_name = 'stdClass')
{
return $this->result_id->fetch_object($class_name);
}
}