diff options
Diffstat (limited to 'system/core/compat/standard.php')
| -rw-r--r-- | system/core/compat/standard.php | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/system/core/compat/standard.php b/system/core/compat/standard.php new file mode 100644 index 000000000..7db2efb57 --- /dev/null +++ b/system/core/compat/standard.php @@ -0,0 +1,182 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, 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 - 2017, 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', 'resource'), 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); + } +} |