如何手动将POST数据输入浏览器(How to manually enter POST data into browser)

 我正在调试我的php脚本，需要尝试通过手动将数据输入到浏览器的URL中来发布数据。 
 
 发送请求的javascript如下。 如何在浏览器中输入正确的数据，以便以与javascript函数相同的方式编码？ 我尝试使用http://meyerweb.com/eric/tools/dencoder/对字符串进行编码，并将sendmail.php？q =“编码字符串”...但这不起作用。 我是否需要添加更多信息？ 
 
function SendPHP(str, callback){
    xmlhttp = new XMLHttpRequest();  
    str = "q=" + encodeURIComponent(str);

    xmlhttp.open("POST","sendmail.php", true);
    xmlhttp.onreadystatechange=function(){
        if (xmlhttp.readyState == 4){
                      inProgress=false;
            if(xmlhttp.status == 200){
                            callback(xmlhttp.responseText);
            }
        }
    };
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");  
        if (inProgress==false){
        inProgress=true;
        xmlhttp.send(str);
        }
        else{
            writeDisplayConsole("ERROR: xmlhttp fired twice!");
        }
}

I'm debugging my php script and need to try to post data to by manually inputting it into the URL in my browser.
 
The javascript which sends the request is below. How do I enter the correct data into my browser so it's encoded in the same way as the javascript function? I tried encoding the string with http://meyerweb.com/eric/tools/dencoder/ and putting sendmail.php?q="the encoded string"... but that didn't work. Do I have to add more information?
 
function SendPHP(str, callback){
    xmlhttp = new XMLHttpRequest();  
    str = "q=" + encodeURIComponent(str);

    xmlhttp.open("POST","sendmail.php", true);
    xmlhttp.onreadystatechange=function(){
        if (xmlhttp.readyState == 4){
                      inProgress=false;
            if(xmlhttp.status == 200){
                            callback(xmlhttp.responseText);
            }
        }
    };
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");  
        if (inProgress==false){
        inProgress=true;
        xmlhttp.send(str);
        }
        else{
            writeDisplayConsole("ERROR: xmlhttp fired twice!");
        }
}

原文：https://stackoverflow.com/questions/23084296