/fp_ci/system/core/compat/standard.php
PHP | 389 lines | 258 code | 43 blank | 88 comment | 53 complexity | 3bcfe2541ec7712b372da9216bc0d82d MD5 | raw file
- <?php
- /**
- * CodeIgniter
- *
- * An open source application development framework for PHP
- *
- * This content is released under the MIT License (MIT)
- *
- * Copyright (c) 2014 - 2016, 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 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
- * @license http://opensource.org/licenses/MIT MIT License
- * @link https://codeigniter.com
- * @since Version 3.0.0
- * @filesource
- */
- defined('BASEPATH') OR exit('No direct script access allowed');
- /**
- * PHP ext/standard compatibility package
- *
- * @package CodeIgniter
- * @subpackage CodeIgniter
- * @category Compatibility
- * @author Andrey Andreev
- * @link https://codeigniter.com/user_guide/
- */
- // ------------------------------------------------------------------------
- if (is_php('5.5'))
- {
- return;
- }
- // ------------------------------------------------------------------------
- if ( ! function_exists('array_column'))
- {
- /**
- * array_column()
- *
- * @link http://php.net/array_column
- * @param array $array
- * @param mixed $column_key
- * @param mixed $index_key
- * @return array
- */
- function array_column(array $array, $column_key, $index_key = NULL)
- {
- if ( ! in_array($type = gettype($column_key), array('integer', 'string', 'NULL'), TRUE))
- {
- if ($type === 'double')
- {
- $column_key = (int) $column_key;
- }
- elseif ($type === 'object' && method_exists($column_key, '__toString'))
- {
- $column_key = (string) $column_key;
- }
- else
- {
- trigger_error('array_column(): The column key should be either a string or an integer', E_USER_WARNING);
- return FALSE;
- }
- }
- if ( ! in_array($type = gettype($index_key), array('integer', 'string', 'NULL'), TRUE))
- {
- if ($type === 'double')
- {
- $index_key = (int) $index_key;
- }
- elseif ($type === 'object' && method_exists($index_key, '__toString'))
- {
- $index_key = (string) $index_key;
- }
- else
- {
- trigger_error('array_column(): The index key should be either a string or an integer', E_USER_WARNING);
- return FALSE;
- }
- }
- $result = array();
- foreach ($array as &$a)
- {
- if ($column_key === NULL)
- {
- $value = $a;
- }
- elseif (is_array($a) && array_key_exists($column_key, $a))
- {
- $value = $a[$column_key];
- }
- else
- {
- continue;
- }
- if ($index_key === NULL OR ! array_key_exists($index_key, $a))
- {
- $result[] = $value;
- }
- else
- {
- $result[$a[$index_key]] = $value;
- }
- }
- return $result;
- }
- }
- // ------------------------------------------------------------------------
- if (is_php('5.4'))
- {
- return;
- }
- // ------------------------------------------------------------------------
- if ( ! function_exists('hex2bin'))
- {
- /**
- * hex2bin()
- *
- * @link http://php.net/hex2bin
- * @param string $data
- * @return string
- */
- function hex2bin($data)
- {
- if (in_array($type = gettype($data), array('array', 'double', 'object'), TRUE))
- {
- if ($type === 'object' && method_exists($data, '__toString'))
- {
- $data = (string) $data;
- }
- else
- {
- trigger_error('hex2bin() expects parameter 1 to be string, '.$type.' given', E_USER_WARNING);
- return NULL;
- }
- }
- if (strlen($data) % 2 !== 0)
- {
- trigger_error('Hexadecimal input string must have an even length', E_USER_WARNING);
- return FALSE;
- }
- elseif ( ! preg_match('/^[0-9a-f]*$/i', $data))
- {
- trigger_error('Input string must be hexadecimal string', E_USER_WARNING);
- return FALSE;
- }
- return pack('H*', $data);
- }
- }
- // ------------------------------------------------------------------------
- if (is_php('5.3'))
- {
- return;
- }
- // ------------------------------------------------------------------------
- if ( ! function_exists('array_replace'))
- {
- /**
- * array_replace()
- *
- * @link http://php.net/array_replace
- * @return array
- */
- function array_replace()
- {
- $arrays = func_get_args();
- if (($c = count($arrays)) === 0)
- {
- trigger_error('array_replace() expects at least 1 parameter, 0 given', E_USER_WARNING);
- return NULL;
- }
- elseif ($c === 1)
- {
- if ( ! is_array($arrays[0]))
- {
- trigger_error('array_replace(): Argument #1 is not an array', E_USER_WARNING);
- return NULL;
- }
- return $arrays[0];
- }
- $array = array_shift($arrays);
- $c--;
- for ($i = 0; $i < $c; $i++)
- {
- if ( ! is_array($arrays[$i]))
- {
- trigger_error('array_replace(): Argument #'.($i + 2).' is not an array', E_USER_WARNING);
- return NULL;
- }
- elseif (empty($arrays[$i]))
- {
- continue;
- }
- foreach (array_keys($arrays[$i]) as $key)
- {
- $array[$key] = $arrays[$i][$key];
- }
- }
- return $array;
- }
- }
- // ------------------------------------------------------------------------
- if ( ! function_exists('array_replace_recursive'))
- {
- /**
- * array_replace_recursive()
- *
- * @link http://php.net/array_replace_recursive
- * @return array
- */
- function array_replace_recursive()
- {
- $arrays = func_get_args();
- if (($c = count($arrays)) === 0)
- {
- trigger_error('array_replace_recursive() expects at least 1 parameter, 0 given', E_USER_WARNING);
- return NULL;
- }
- elseif ($c === 1)
- {
- if ( ! is_array($arrays[0]))
- {
- trigger_error('array_replace_recursive(): Argument #1 is not an array', E_USER_WARNING);
- return NULL;
- }
- return $arrays[0];
- }
- $array = array_shift($arrays);
- $c--;
- for ($i = 0; $i < $c; $i++)
- {
- if ( ! is_array($arrays[$i]))
- {
- trigger_error('array_replace_recursive(): Argument #'.($i + 2).' is not an array', E_USER_WARNING);
- return NULL;
- }
- elseif (empty($arrays[$i]))
- {
- continue;
- }
- foreach (array_keys($arrays[$i]) as $key)
- {
- $array[$key] = (is_array($arrays[$i][$key]) && isset($array[$key]) && is_array($array[$key]))
- ? array_replace_recursive($array[$key], $arrays[$i][$key])
- : $arrays[$i][$key];
- }
- }
- return $array;
- }
- }
- // ------------------------------------------------------------------------
- if ( ! function_exists('quoted_printable_encode'))
- {
- /**
- * quoted_printable_encode()
- *
- * @link http://php.net/quoted_printable_encode
- * @param string $str
- * @return string
- */
- function quoted_printable_encode($str)
- {
- if (strlen($str) === 0)
- {
- return '';
- }
- elseif (in_array($type = gettype($str), array('array', 'object'), TRUE))
- {
- if ($type === 'object' && method_exists($str, '__toString'))
- {
- $str = (string) $str;
- }
- else
- {
- trigger_error('quoted_printable_encode() expects parameter 1 to be string, '.$type.' given', E_USER_WARNING);
- return NULL;
- }
- }
- if (function_exists('imap_8bit'))
- {
- return imap_8bit($str);
- }
- $i = $lp = 0;
- $output = '';
- $hex = '0123456789ABCDEF';
- $length = (extension_loaded('mbstring') && ini_get('mbstring.func_overload'))
- ? mb_strlen($str, '8bit')
- : strlen($str);
- while ($length--)
- {
- if ((($c = $str[$i++]) === "\015") && isset($str[$i]) && ($str[$i] === "\012") && $length > 0)
- {
- $output .= "\015".$str[$i++];
- $length--;
- $lp = 0;
- continue;
- }
- if (
- ctype_cntrl($c)
- OR (ord($c) === 0x7f)
- OR (ord($c) & 0x80)
- OR ($c === '=')
- OR ($c === ' ' && isset($str[$i]) && $str[$i] === "\015")
- )
- {
- if (
- (($lp += 3) > 75 && ord($c) <= 0x7f)
- OR (ord($c) > 0x7f && ord($c) <= 0xdf && ($lp + 3) > 75)
- OR (ord($c) > 0xdf && ord($c) <= 0xef && ($lp + 6) > 75)
- OR (ord($c) > 0xef && ord($c) <= 0xf4 && ($lp + 9) > 75)
- )
- {
- $output .= "=\015\012";
- $lp = 3;
- }
- $output .= '='.$hex[ord($c) >> 4].$hex[ord($c) & 0xf];
- continue;
- }
- if ((++$lp) > 75)
- {
- $output .= "=\015\012";
- $lp = 1;
- }
- $output .= $c;
- }
- return $output;
- }
- }