使用Ajax中止PHP函数

Question

Currently doing upload to database from csv file. now after looping 2k rows of data that takes too long to wait. then after trying to cancel via ajax request with

        $.each(xhrPool, function(idx, jqXHR) {
            jqXHR.abort();
        });

ajax would be aborted, but then the php process still keeps going even if I refresh the page the still process import dont stop. it will only load the page after finishing the upload. is there a way to abort php function from front end. but no other link work with my page when doing upload it will only work after the upload

my import file of PHP

        while ( ($data = fgetcsv($file, 30000, ",")) !==FALSE ){
            foreach row insert to database;
        }

        fclose($file);