Cookie操作 javascript php

function setCookie(c_name,value,expiredays)
{
    var exdate=new Date();
    exdate.setDate(exdate.getDate()+expiredays);
    document.cookie=c_name+ "=" +escape(value)+
        ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}
function getCookie(c_name)
{
    f (document.cookie.length>0)
    {
        c_start=document.cookie.indexOf(c_name + "=")
        if (c_start!=-1)
        { 
            c_start=c_start + c_name.length+1 ;
            c_end=document.cookie.indexOf(";",c_start);
            if (c_end==-1)
                 c_end=document.cookie.length
            return unescape(document.cookie.substring(c_start,c_end));
        } 
    }
    return "";
}
function delCookie(c_name)
{
    setCookie(c_name,“”,-1000)
}
function delAllCookie()
{
    var strCookie=document.cookie;
    var arrCookie=strCookie.split("; ");
    for(var i=0;i     {
        var arr=arrCookie[i].split("=");
        if(arr.length>0)
            delCookie(arr[0]);
    }
}


php设置cookie

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