ini.php文件简析

浏览数：45 / 时间：2015年06月09日

<?php
if(!defined(‘COREINC‘)) exit(‘Request Error!‘);
    //统一配置文件,优先使用自定义配置，未定义的使用默认配置
    defined("CORE_PATH")    or define("CORE_PATH", "./core/"); //框架核心路径
    defined("APP_PATH")     or define("APP_PATH","./app/");//项目路径
    defined(‘MODEL_PATH‘)   or define("MODEL_PATH",APP_PATH.‘models/‘);
    defined(‘STATIC_PATH‘)  or define(‘STATIC_PATH‘,APP_PATH.‘statics/‘);
    defined("UP_PATH")      or define(‘UP_PATH‘, APP_PATH.‘upload/‘);
    defined("PLUGIN_PATH")  or define("PLUGIN_PATH", APP_PATH.‘plugin/‘);
    //字符编码
    defined("CHARSET") or define(‘CHARSET‘,‘utf-8‘);
    // 定义当前请求的系统常量
    define(‘NOW_TIME‘,      $_SERVER[‘REQUEST_TIME‘]);
    define(‘REQUEST_METHOD‘,$_SERVER[‘REQUEST_METHOD‘]);
    define(‘IS_GET‘,        REQUEST_METHOD ==‘GET‘ ? true : false);
    define(‘IS_POST‘,       REQUEST_METHOD ==‘POST‘ ? true : false);
    define(‘IS_PUT‘,        REQUEST_METHOD ==‘PUT‘ ? true : false);
    define(‘IS_DELETE‘,     REQUEST_METHOD ==‘DELETE‘ ? true : false);
    define(‘IS_AJAX‘,       ((isset($_SERVER[‘HTTP_X_REQUESTED_WITH‘]) && strtolower($_SERVER[‘HTTP_X_REQUESTED_WITH‘]) == ‘xmlhttprequest‘)) ? true : false);
    //设置include_path
    set_include_path(get_include_path() . PATH_SEPARATOR . CORE_PATH."main");
    initializer::initialize();//加载将要用到的目录文件
    require_once(CORE_PATH."functions/global.fun.php");//公用方法    
    require_once(APP_PATH.‘config/config.php‘);//自定义配置文件
    require_once(CORE_PATH."config/config.php");//默认配置文件    
    $common_fun_path = APP_PATH.‘common/common.php‘; 
    if(file_exists($common_fun_path)){
        require_once($common_fun_path);
    }
    //自动加载类
    function __autoload($object){  
            require_once("{$object}.class.php");
    }
?>

defined("CORE_PATH")    or define("CORE_PATH", "./core/"); //框架核心路径

框架默认核心路径，如果入口文件不配置，就默认该配置

defined("APP_PATH")     or define("APP_PATH","./app/");//项目路径

项目默认路径，如果入口文件不配置，就默认该配置

defined(‘MODEL_PATH‘)   or define("MODEL_PATH",APP_PATH.‘models/‘);
defined(‘STATIC_PATH‘)  or define(‘STATIC_PATH‘,APP_PATH.‘statics/‘);
defined("UP_PATH")      or define(‘UP_PATH‘, APP_PATH.‘upload/‘);
defined("PLUGIN_PATH")  or define("PLUGIN_PATH", APP_PATH.‘plugin/‘);

分别为模型路径，静态文件路径，上传路径，差距路径的默认配置，一般可以在config.php文件中配置，如果不配置，就默认该配置

defined("CHARSET") or define(‘CHARSET‘,‘utf-8‘);

配置字符编码，再global.fun.php中有函数str_cut用得到，下面是字符串截取函数str_cut得代码

function str_cut($string, $length, $dot = ‘‘) {
        $strlen = strlen($string);
        if($strlen/2 <= $length) return $string;
        $string = str_replace(array(‘ ‘,‘        ‘,‘　‘,‘ ‘, ‘&‘, ‘"‘, ‘\‘‘, ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), array(‘ ‘,‘ ‘,‘ ‘,‘ ‘, ‘&‘, ‘"‘, "‘", ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), $string);
        $strcut = ‘‘;
        $n = $tn = $noc = 0;
        if(strtolower(CHARSET) == ‘utf-8‘) {
                while($n < $strlen) {
                        $t = ord($string[$n]);
                        if($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) {
                                $tn = 1; ++$n; $noc += 0.5;
                        } elseif(194 <= $t && $t <= 223) {
                                $tn = 2; $n += 2; $noc += 1;
                        } elseif(224 <= $t && $t <= 239) {
                                $tn = 3; $n += 3; $noc += 1;
                        } elseif(240 <= $t && $t <= 247) {
                                $tn = 4; $n += 4; $noc += 1;
                        } elseif(248 <= $t && $t <= 251) {
                                $tn = 5; $n += 5; $noc += 1;
                        } elseif($t == 252 || $t == 253) {
                                $tn = 6; $n += 6; $noc += 1;
                        } else {
                                ++$n;
                        }
                        if($noc >= $length) {
                                if($n < $strlen) ++$noc;
                                break;
                        }
                }
        } else {                
                while($n < $strlen) {
                        if(ord($string[$n]) > 127) {
                                $tn = 2; $n += 2; $noc += 1;
                        } else{
                                $tn = 1; ++$n; $noc += 0.5;
                        }
                        if($noc >= $length) {
                                if($n < $strlen) ++$noc;
                                break;
                        }
                }
        }
        if($noc > $length && !empty($dot)) {
                $n -= $tn;
                $strcut = substr($string, 0, $n);
                $strcut .= $dot;
        }else{
                $strcut = substr($string, 0, $n);
        }        
        $strcut = str_replace(array(‘&‘, ‘"‘, "‘", ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), array(‘&‘, ‘"‘, ‘\‘‘, ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), $strcut);
        return $strcut;
}

下面定义的常量，用于判断请求类型

 // 定义当前请求的系统常量
    define(‘NOW_TIME‘,      $_SERVER[‘REQUEST_TIME‘]);
    define(‘REQUEST_METHOD‘,$_SERVER[‘REQUEST_METHOD‘]);
    define(‘IS_GET‘,        REQUEST_METHOD ==‘GET‘ ? true : false);
    define(‘IS_POST‘,       REQUEST_METHOD ==‘POST‘ ? true : false);
    define(‘IS_PUT‘,        REQUEST_METHOD ==‘PUT‘ ? true : false);
    define(‘IS_DELETE‘,     REQUEST_METHOD ==‘DELETE‘ ? true : false);
    define(‘IS_AJAX‘,       ((isset($_SERVER[‘HTTP_X_REQUESTED_WITH‘]) && strtolower($_SERVER[‘HTTP_X_REQUESTED_WITH‘]) == ‘xmlhttprequest‘)) ? true : false);

设置include_path

//设置include_path
set_include_path(get_include_path() . PATH_SEPARATOR . CORE_PATH."main");

自动加载

//自动加载类
    function __autoload($object){  
            require_once("{$object}.class.php");
    }

该函数的工作原理如下：

http://www.cnblogs.com/bourneli/archive/2012/09/08/2676965.html

initializer::initialize();//加载将要用到的目录文件

自动加载类，

<?php
if(!defined(‘COREINC‘)) exit(‘Request Error!‘);
class initializer{    
    public static function initialize()    {        
        //set_include_path(get_include_path().PATH_SEPARATOR.CORE_PATH."main");                
        set_include_path(get_include_path().PATH_SEPARATOR.CORE_PATH."helpers");        
        set_include_path(get_include_path().PATH_SEPARATOR.CORE_PATH."libraries");
        set_include_path(get_include_path().PATH_SEPARATOR.CORE_PATH."config");        
        set_include_path(get_include_path().PATH_SEPARATOR.APP_PATH."controllers");        
        set_include_path(get_include_path().PATH_SEPARATOR.APP_PATH."models");        
        set_include_path(get_include_path().PATH_SEPARATOR.APP_PATH."views");
        set_include_path(get_include_path().PATH_SEPARATOR.APP_PATH."config");
        set_include_path(get_include_path().PATH_SEPARATOR.APP_PATH."plugin");
    }
}?>

该静态方式调用，设置了一些要用到的include_path

require_once(CORE_PATH."functions/global.fun.php");//公用方法    
require_once(APP_PATH.‘config/config.php‘);//自定义配置文件
require_once(CORE_PATH."config/config.php");//默认配置文件    
$common_fun_path = APP_PATH.‘common/common.php‘; 
if(file_exists($common_fun_path)){
    require_once($common_fun_path);
}