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Diffstat (limited to 'system/core/compat/array.php')
| -rw-r--r-- | system/core/compat/array.php | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/system/core/compat/array.php b/system/core/compat/array.php new file mode 100644 index 000000000..b291703ed --- /dev/null +++ b/system/core/compat/array.php @@ -0,0 +1,246 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.2.4 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) + * @link http://codeigniter.com + * @since Version 3.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PHP ext/standard/array compatibility package + * + * @package CodeIgniter + * @subpackage CodeIgniter + * @category Compatibility + * @author Andrey Andreev + * @link http://codeigniter.com/user_guide/ + * @link http://php.net/book.array + */ + +// ------------------------------------------------------------------------ + +if (is_php('5.5')) +{ + return; +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('array_column')) +{ + /** + * array_column() + * + * @link http://php.net/array_column + * @param string $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('5.3')) +{ + 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, $c = count($arrays); $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, $c = count($arrays); $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; + } +} + +/* End of file array.php */ +/* Location: ./system/core/compat/array.php */
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