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Help with Ajax,Javascript -- 2

I need help with PHP-MYSQL-AJAX-JAVASCRIPT fom time to time.

This would be a get-paid to be a teacher type of project

and eventually maybe be a partner doing some projet part

or whole project.

Here is my problem:

I have a web page generated with PHP with a repport <div> on it.

the department manager want this repport to be refreshed every 5 seconds....

for maybe 5-10 person looking at it in real time.

the page it filled with content and by itself it makes maybe 20 to 30 MySql query

to output de page.

I am afraid that refreshing the page every 5 sec will load the Mysql Server with tons of similar request over and over....

I track the last change in a Mysql Table in [url removed, login to view]

then refresh only the repport table div if the returned value form the Ajax request have changed..

I tried different ways but my knowledge of javascript & Jquerry are insuffisant to make it work.

I don't kno how to store the return value of '[url removed, login to view]' and than 5 second later compare it to the new value of '[url removed, login to view]' en if changes then reload '[url removed, login to view]

Taidot: AJAX, Javascript, jQuery / Prototype, MySQL, PHP

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Tietoa työnantajasta:
( 45 arvostelua ) Sainte-Julienne, Canada

Projektin tunnus: #16113189

Myönnetty käyttäjälle:

TakeReal

Hello, My name is Sergey. I am Freelancer from [url removed, login to view], Russia. If you can give me FTP access, then I can update the "[url removed, login to view]" and implement this: " store the return value of '[url removed, login to view]' a Lisää

$33 USD / tunti
(1687 Arvostelua)
8.0

53 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_18% %project_currencyDetails_sign_sub_19%/tunti tähän työhön

kchg

Hi, I'm currently available to help you. My key qualifications: - TOP 5th developer of freelancer.com. (https://www.freelancer.com/users/game/) - Enthusiastic + dedicated work. - Responsive communication within Lisää

$40 USD / tunti
(455 arvostelua)
9.6
octopus823

Hi. I have many experiences in developing Web application. So I can complete your project with high quality in time. I hope you contact me for discussing more.

$31 USD / tunti
(140 arvostelua)
8.4
seekdeveloper

Hi, I have read your post and understood your requirement. Looking for the freelancer to work on your next project? Or just need some issues/bugs/fixes ASAP? I have 8+ years of experience and I'm here for you! My Lisää

$33 USD / tunti
(111 arvostelua)
8.7
toseef3

Dear sir, I have read your job post to help in AJAX and JAVASCRIPT sir I'm interested in doing this project as I have all the required skills and expertise needed for this project, also I have already working Exper Lisää

$27 USD / tunti
(64 arvostelua)
7.5
Wangxianming

Professional web app developer is here. I am top 10 mobile developer on Freelancer.com. I checked your specs in detail and I am very interested. Please contact me with details. Thanks

$41 USD / tunti
(16 arvostelua)
7.0
aryan151

Sir i have better way to do it, instead of using ajax. I have way that will never hang your page.....................

$25 USD / tunti
(295 arvostelua)
6.8
shreeyait

[url removed, login to view] [url removed, login to view] [url removed, login to view] [url removed, login to view] [url removed, login to view] [url removed, login to view]

$41 USD / tunti
(71 arvostelua)
7.1
AdeelAslam4

Hi, I can help you with the PHP problem you're facing. Do I just need to solve the issues or also explain how I am doing or teaching you the PHP also?

$30 USD / tunti
(32 arvostelua)
6.5
mekiho

Hello Thanks for your post job. I read your description carefully and understood your requirement correctly. As I am professional developer with 5+ yrs experience I hope to work with you. I will provide you top s Lisää

$41 USD / tunti
(44 arvostelua)
5.9
WinstonCrawford

Good day, I am a professional web developer understanding your problem. I usually do not take hourly projects though please hit me up at info(at)[url removed, login to view] I am sure I can help you. Best, Tim

$27 USD / tunti
(28 arvostelua)
6.0
tyang0928

Hello, I am a professional web developer with that skills that you want. I think every 5 seconds to load the pages will be not good way for your server. so It'll be needed to use ajax to load the needed info from t Lisää

$41 USD / tunti
(29 arvostelua)
6.0
superman1987417

Hi, Dear Client. I have experienced with back-end development. I am expert Web developer with high PHP & database management skills. I read your job details and checked your spec docs and think that it's very suitab Lisää

$27 USD / tunti
(43 arvostelua)
5.9
rameshmahala

Hello there, I would like to be considered for this job as I have great working experience in HTML, CSS and JavaScript/jQuery development. Thanks, Ramesh

$26 USD / tunti
(60 arvostelua)
5.7
$27 USD / tunti
(17 arvostelua)
5.9
raheelhassan14

[url removed, login to view] to see your project.I have read the details.I have worked in php before and the task you posted can be completed [url removed, login to view] forward . Thank You !!!

$41 USD / tunti
(30 arvostelua)
5.9
DarinX

Hi! What is your budget for the project? Let me tell you that we work on T&M basis, so I would be more than happy to discuss your project in details! SKILL SET Mobile: Java, Swift, Objective-C Design: graphic de Lisää

$30 USD / tunti
(15 arvostelua)
6.0
leadrankseo

My great experience with Ajax and JavaScript makes me the best candidate for this project I can work fully for you Thanks

$50 USD / tunti
(15 arvostelua)
5.3
CleanMaster

Hi I am very interested in your job. I have developed over 170 apps including Dating app, Shopping app, Live Streaming App, Photo Sharing Social app, Bus Tracking app,News app. I also have developed backend using Jav Lisää

$27 USD / tunti
(9 arvostelua)
5.4
spryox

I read your question but would need further info so we are on same page. One of the solution to your issue I see is if all students using same data than we can use on file for storing the data which is accessed by a Lisää

$25 USD / tunti
(110 arvostelua)
5.5
symaticssolution

Dear Hiring Manager! I have read your entire job post and I am well known of your existing problem. I know how to return value of '[url removed, login to view]' and than 5 second later compare it to the new value of 'lastre Lisää

$25 USD / tunti
(25 arvostelua)
5.4