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files >> //proc/self/root/home/papecmvm/www/system/database/drivers/mysqli/mysqli_utility.php
<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2019, British Columbia Institute of Technology * * 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/) * @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 Utility Class * * @package CodeIgniter * @subpackage Drivers * @category Database * @author EllisLab Dev Team * @link https://codeigniter.com/user_guide/database/ */ class CI_DB_mysqli_utility extends CI_DB_utility { /** * List databases statement * * @var string */ protected $_list_databases = 'SHOW DATABASES'; /** * OPTIMIZE TABLE statement * * @var string */ protected $_optimize_table = 'OPTIMIZE TABLE %s'; /** * REPAIR TABLE statement * * @var string */ protected $_repair_table = 'REPAIR TABLE %s'; // -------------------------------------------------------------------- /** * Export * * @param array $params Preferences * @return mixed */ protected function _backup($params = array()) { if (count($params) === 0) { return FALSE; } // Extract the prefs for simplicity extract($params); // Build the output $output = ''; // Do we need to include a statement to disable foreign key checks? if ($foreign_key_checks === FALSE) { $output .= 'SET foreign_key_checks = 0;'.$newline; } foreach ( (array) $tables as $table) { // Is the table in the "ignore" list? if (in_array($table, (array) $ignore, TRUE)) { continue; } // Get the table schema $query = $this->db->query('SHOW CREATE TABLE '.$this->db->escape_identifiers($this->db->database.'.'.$table)); // No result means the table name was invalid if ($query === FALSE) { continue; } // Write out the table schema $output .= '#'.$newline.'# TABLE STRUCTURE FOR: '.$table.$newline.'#'.$newline.$newline; if ($add_drop === TRUE) { $output .= 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table).';'.$newline.$newline; } $i = 0; $result = $query->result_array(); foreach ($result[0] as $val) { if ($i++ % 2) { $output .= $val.';'.$newline.$newline; } } // If inserts are not needed we're done... if ($add_insert === FALSE) { continue; } // Grab all the data from the current table $query = $this->db->query('SELECT * FROM '.$this->db->protect_identifiers($table)); if ($query->num_rows() === 0) { continue; } // Fetch the field names and determine if the field is an // integer type. We use this info to decide whether to // surround the data with quotes or not $i = 0; $field_str = ''; $is_int = array(); while ($field = $query->result_id->fetch_field()) { // Most versions of MySQL store timestamp as a string $is_int[$i] = in_array($field->type, array(MYSQLI_TYPE_TINY, MYSQLI_TYPE_SHORT, MYSQLI_TYPE_INT24, MYSQLI_TYPE_LONG), TRUE); // Create a string of field names $field_str .= $this->db->escape_identifiers($field->name).', '; $i++; } // Trim off the end comma $field_str = preg_replace('/, $/' , '', $field_str); // Build the insert string foreach ($query->result_array() as $row) { $val_str = ''; $i = 0; foreach ($row as $v) { // Is the value NULL? if ($v === NULL) { $val_str .= 'NULL'; } else { // Escape the data if it's not an integer $val_str .= ($is_int[$i] === FALSE) ? $this->db->escape($v) : $v; } // Append a comma $val_str .= ', '; $i++; } // Remove the comma at the end of the string $val_str = preg_replace('/, $/' , '', $val_str); // Build the INSERT string $output .= 'INSERT INTO '.$this->db->protect_identifiers($table).' ('.$field_str.') VALUES ('.$val_str.');'.$newline; } $output .= $newline.$newline; } // Do we need to include a statement to re-enable foreign key checks? if ($foreign_key_checks === FALSE) { $output .= 'SET foreign_key_checks = 1;'.$newline; } return $output; } }
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