yii和php的一些细节

yii   index.php

ini_set("display_errors", 1);

iconv这个函数不能直接用 需要检测！！！

function gb2312_utf8($str = ""){
    if(function_exists("iconv")){
        return iconv("gb2312", "utf-8//IGNORE", $str);
    }else if(function_exists("mb_convert_encoding")){
        return mb_convert_encoding($str, 'UTF-8', "gb2312");
    }else{
        die('gb2312_utf8 occur error!');
    }
}


function utf8_gb2312($str = ""){
    if(function_exists("iconv")){
        return iconv("utf-8", "gb2312//IGNORE", $str);
    }else if(function_exists("mb_convert_encoding")){
        return mb_convert_encoding($str, 'gb2312', "UTF-8");
    }else{
        die('utf8_gb2312 occur error!');
    }
}