为什么 AJAX 这么长？

Question

Hi all i'm trying to compile and send some forms to a php file, but i noticed that it's very slow, even if in PHP i var_dump only the POST values, it takes the same time if i run with my correct functions. Maybe the code is wrong, this is what i'm trying to do:

$("#button").click(function(){
        $("#button").css("border","2px solid blue");
        var total_forms = $("input[name=total_forms]").val();
         $.ajax( {
        type: "POST",
        url: "<? echo "myurl.php";?>",
        data: {delete : 1}, //before sending my forms i need to run another function that delete some items in mySQL DB
        success: function(data) {
        for(var i = 0; i < total_forms; i++){
            var string_ok = "#form_number_";
            string_ok = string_ok.concat(i);
            var dataString = $(string_ok).serialize();
             $.ajax( {
        type: "POST",
        url: "echo "myUrl.php;"",
        data: dataString,
        success: function(data) {
            console.log(data); //it's a bit faster, only a bit
            $("#mydiv").append(data); //it's a bit slower
        }
            });
        }
        }
            });
    });

I forget to say that i'm running it on MAMP in a macbook with 8GB RAM and SSD with only 10GB free, maybe my PC is the problem, IDK..

it takes about 4minutes to compile, send to PHP and stamp datas for 500forms

this is an example of dataString that i send:

prd_number=1259&prd_max_number=1763&old_prd_id=0&prd_action=true&title=INFORMAT%20G1X85A%23A80&title_check=true&old_title_text=&new_image_url=&old_image_url=&is_mech=&image_check=true&new_cat=Informatica%2CINFORMAT&category=true&new_price_text=222.04&price=true&new_sku_text=888182658918&oth=true&ncw=negat&stwe=testing&mark_text=INFORMAT_G1X85A%23A80&check_two=true&other_sto=table&var2=true&elemt=&weight=true&qt=3&qslow=true&clients=Norman%2Cli&taking=true&setting=normal&vars_set=true

i noticed that if i console.log(dataString), the console first stamps all dataString logs, and then starts to print each php response.

Answer 1

• Are you sending the data locally? Like is your php server running locally or is it hosted somewhere?
• How much data are on the forms?
• Also your code is sending an ajax request in the for loop. so You have a nested ajax call going on, one on every iteration of your loop. Thats of course going to be slower, is there a way you can refactor this to be one ajax request? Basically your making an ajax request, waiting for that response to come back, for looping, then sending another every time you iterate. Seems a little convoluted.