390 lines
8.7 KiB
PHP
390 lines
8.7 KiB
PHP
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014 - 2016, British Columbia Institute of Technology
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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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* 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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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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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) 2014 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
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* @license http://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 3.0.0
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* PHP ext/standard compatibility package
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*
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* @package CodeIgniter
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* @subpackage CodeIgniter
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* @category Compatibility
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* @author Andrey Andreev
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* @link https://codeigniter.com/user_guide/
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*/
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// ------------------------------------------------------------------------
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if (is_php('5.5'))
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{
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return;
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}
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// ------------------------------------------------------------------------
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if ( ! function_exists('array_column'))
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{
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/**
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* array_column()
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*
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* @link http://php.net/array_column
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* @param string $array
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* @param mixed $column_key
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* @param mixed $index_key
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* @return array
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*/
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function array_column(array $array, $column_key, $index_key = NULL)
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{
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if ( ! in_array($type = gettype($column_key), array('integer', 'string', 'NULL'), TRUE))
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{
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if ($type === 'double')
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{
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$column_key = (int) $column_key;
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}
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elseif ($type === 'object' && method_exists($column_key, '__toString'))
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{
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$column_key = (string) $column_key;
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}
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else
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{
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trigger_error('array_column(): The column key should be either a string or an integer', E_USER_WARNING);
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return FALSE;
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}
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}
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if ( ! in_array($type = gettype($index_key), array('integer', 'string', 'NULL'), TRUE))
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{
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if ($type === 'double')
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{
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$index_key = (int) $index_key;
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}
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elseif ($type === 'object' && method_exists($index_key, '__toString'))
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{
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$index_key = (string) $index_key;
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}
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else
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{
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trigger_error('array_column(): The index key should be either a string or an integer', E_USER_WARNING);
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return FALSE;
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}
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}
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$result = array();
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foreach ($array as &$a)
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{
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if ($column_key === NULL)
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{
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$value = $a;
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}
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elseif (is_array($a) && array_key_exists($column_key, $a))
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{
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$value = $a[$column_key];
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}
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else
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{
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continue;
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}
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if ($index_key === NULL OR ! array_key_exists($index_key, $a))
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{
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$result[] = $value;
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}
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else
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{
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$result[$a[$index_key]] = $value;
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}
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}
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return $result;
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}
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}
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// ------------------------------------------------------------------------
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if (is_php('5.4'))
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{
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return;
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}
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// ------------------------------------------------------------------------
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if ( ! function_exists('hex2bin'))
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{
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/**
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* hex2bin()
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*
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* @link http://php.net/hex2bin
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* @param string $data
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* @return string
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*/
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function hex2bin($data)
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{
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if (in_array($type = gettype($data), array('array', 'double', 'object'), TRUE))
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{
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if ($type === 'object' && method_exists($data, '__toString'))
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{
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$data = (string) $data;
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}
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else
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{
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trigger_error('hex2bin() expects parameter 1 to be string, '.$type.' given', E_USER_WARNING);
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return NULL;
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}
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}
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if (strlen($data) % 2 !== 0)
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{
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trigger_error('Hexadecimal input string must have an even length', E_USER_WARNING);
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return FALSE;
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}
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elseif ( ! preg_match('/^[0-9a-f]*$/i', $data))
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{
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trigger_error('Input string must be hexadecimal string', E_USER_WARNING);
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return FALSE;
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}
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return pack('H*', $data);
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}
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}
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// ------------------------------------------------------------------------
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if (is_php('5.3'))
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{
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return;
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}
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// ------------------------------------------------------------------------
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if ( ! function_exists('array_replace'))
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{
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/**
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* array_replace()
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*
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* @link http://php.net/array_replace
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* @return array
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*/
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function array_replace()
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{
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$arrays = func_get_args();
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if (($c = count($arrays)) === 0)
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{
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trigger_error('array_replace() expects at least 1 parameter, 0 given', E_USER_WARNING);
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return NULL;
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}
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elseif ($c === 1)
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{
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if ( ! is_array($arrays[0]))
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{
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trigger_error('array_replace(): Argument #1 is not an array', E_USER_WARNING);
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return NULL;
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}
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return $arrays[0];
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}
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$array = array_shift($arrays);
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$c--;
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for ($i = 0; $i < $c; $i++)
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{
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if ( ! is_array($arrays[$i]))
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{
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trigger_error('array_replace(): Argument #'.($i + 2).' is not an array', E_USER_WARNING);
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return NULL;
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}
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elseif (empty($arrays[$i]))
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{
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continue;
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}
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foreach (array_keys($arrays[$i]) as $key)
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{
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$array[$key] = $arrays[$i][$key];
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}
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}
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return $array;
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}
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}
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// ------------------------------------------------------------------------
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if ( ! function_exists('array_replace_recursive'))
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{
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/**
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* array_replace_recursive()
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*
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* @link http://php.net/array_replace_recursive
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* @return array
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*/
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function array_replace_recursive()
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{
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$arrays = func_get_args();
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if (($c = count($arrays)) === 0)
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{
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trigger_error('array_replace_recursive() expects at least 1 parameter, 0 given', E_USER_WARNING);
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return NULL;
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}
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elseif ($c === 1)
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{
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if ( ! is_array($arrays[0]))
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{
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trigger_error('array_replace_recursive(): Argument #1 is not an array', E_USER_WARNING);
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return NULL;
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}
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return $arrays[0];
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}
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$array = array_shift($arrays);
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$c--;
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for ($i = 0; $i < $c; $i++)
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{
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if ( ! is_array($arrays[$i]))
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{
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trigger_error('array_replace_recursive(): Argument #'.($i + 2).' is not an array', E_USER_WARNING);
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return NULL;
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}
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elseif (empty($arrays[$i]))
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{
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continue;
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}
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foreach (array_keys($arrays[$i]) as $key)
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{
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$array[$key] = (is_array($arrays[$i][$key]) && isset($array[$key]) && is_array($array[$key]))
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? array_replace_recursive($array[$key], $arrays[$i][$key])
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: $arrays[$i][$key];
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}
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}
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return $array;
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}
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}
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// ------------------------------------------------------------------------
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if ( ! function_exists('quoted_printable_encode'))
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{
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/**
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* quoted_printable_encode()
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*
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* @link http://php.net/quoted_printable_encode
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* @param string $str
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* @return string
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*/
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function quoted_printable_encode($str)
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{
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if (strlen($str) === 0)
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{
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return '';
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}
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elseif (in_array($type = gettype($str), array('array', 'object'), TRUE))
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{
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if ($type === 'object' && method_exists($str, '__toString'))
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{
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$str = (string) $str;
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}
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else
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{
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trigger_error('quoted_printable_encode() expects parameter 1 to be string, '.$type.' given', E_USER_WARNING);
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return NULL;
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}
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}
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if (function_exists('imap_8bit'))
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{
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return imap_8bit($str);
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}
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$i = $lp = 0;
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$output = '';
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$hex = '0123456789ABCDEF';
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$length = (extension_loaded('mbstring') && ini_get('mbstring.func_overload'))
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? mb_strlen($str, '8bit')
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: strlen($str);
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while ($length--)
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{
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if ((($c = $str[$i++]) === "\015") && isset($str[$i]) && ($str[$i] === "\012") && $length > 0)
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{
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$output .= "\015".$str[$i++];
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$length--;
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$lp = 0;
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continue;
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}
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if (
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ctype_cntrl($c)
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OR (ord($c) === 0x7f)
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OR (ord($c) & 0x80)
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OR ($c === '=')
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OR ($c === ' ' && isset($str[$i]) && $str[$i] === "\015")
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)
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{
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if (
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(($lp += 3) > 75 && ord($c) <= 0x7f)
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OR (ord($c) > 0x7f && ord($c) <= 0xdf && ($lp + 3) > 75)
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OR (ord($c) > 0xdf && ord($c) <= 0xef && ($lp + 6) > 75)
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OR (ord($c) > 0xef && ord($c) <= 0xf4 && ($lp + 9) > 75)
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)
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{
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$output .= "=\015\012";
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$lp = 3;
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}
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$output .= '='.$hex[ord($c) >> 4].$hex[ord($c) & 0xf];
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continue;
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}
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if ((++$lp) > 75)
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{
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$output .= "=\015\012";
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$lp = 1;
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}
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$output .= $c;
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}
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return $output;
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}
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}
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