CI框架 -- 核心文件 之 Lang.php(加载语言包)
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<?php if ( ! defined(‘BASEPATH‘)) exit(‘No direct script access allowed‘); class CI_Lang { var $language = array(); var $is_loaded = array(); function __construct() { log_message(‘debug‘, "Language Class Initialized"); } //加载语言包 function load($langfile = ‘‘, $idiom = ‘‘, $return = FALSE, $add_suffix = TRUE, $alt_path = ‘‘) { $langfile = str_replace(‘.php‘, ‘‘, $langfile); if ($add_suffix == TRUE) { $langfile = str_replace(‘_lang.‘, ‘‘, $langfile).‘_lang‘; } $langfile .= ‘.php‘; if (in_array($langfile, $this->is_loaded, TRUE)) { return; } $config =& get_config(); if ($idiom == ‘‘) { $deft_lang = ( ! isset($config[‘language‘])) ? ‘english‘ : $config[‘language‘]; $idiom = ($deft_lang == ‘‘) ? ‘english‘ : $deft_lang; } // Determine where the language file is and load it if ($alt_path != ‘‘ && file_exists($alt_path.‘language/‘.$idiom.‘/‘.$langfile)) { include($alt_path.‘language/‘.$idiom.‘/‘.$langfile); } else { $found = FALSE; foreach (get_instance()->load->get_package_paths(TRUE) as $package_path) { if (file_exists($package_path.‘language/‘.$idiom.‘/‘.$langfile)) { include($package_path.‘language/‘.$idiom.‘/‘.$langfile); $found = TRUE; break; } } if ($found !== TRUE) { show_error(‘Unable to load the requested language file: language/‘.$idiom.‘/‘.$langfile); } } if ( ! isset($lang)) { log_message(‘error‘, ‘Language file contains no data: language/‘.$idiom.‘/‘.$langfile); return; } if ($return == TRUE) { return $lang; } $this->is_loaded[] = $langfile; $this->language = array_merge($this->language, $lang); unset($lang); log_message(‘debug‘, ‘Language file loaded: language/‘.$idiom.‘/‘.$langfile); return TRUE; } //从language数组中取出一条数据 function line($line = ‘‘) { $value = ($line == ‘‘ OR ! isset($this->language[$line])) ? FALSE : $this->language[$line]; // Because killer robots like unicorns! if ($value === FALSE) { log_message(‘error‘, ‘Could not find the language line "‘.$line.‘"‘); } return $value; } }
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