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Friday, June 12, 2009

Comment system with jQuery, Ajax and PHP.

This time I had developed Comment system with out refreshing page with jQuery, Ajax and PHP. In this application I had implemented with gravatar image. It's is useful and simple just some lines of code. Take a look at the live demo effect.


Updated Version :Click Here


Download Script     Live Demo


javascript code.

<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" >
$(function() {
$(".submit").click(function()
{
var name = $("#name").val();
var email = $("#email").val();
var comment = $("#comment").val();
var dataString = 'name='+ name + '&email=' + email + '&comment=' + comment;
if(name=='' || email=='' || comment=='')
{
alert('Please Give Valid Details');
}
else
{
$("#flash").show();
$("#flash").fadeIn(400).html('<img src="ajax-loader.gif" />Loading Comment...');
$.ajax({
type: "POST",
url: "commentajax.php",
data: dataString,
cache: false,
success: function(html){
$("ol#update").append(html);
$("ol#update li:last").fadeIn("slow");
$("#flash").hide();
}
});
}return false;
}); });
</script>



comment.php
Contains HTML code here class timeline li{display:none}
<ol id="update" class="timeline">
</ol>
<div id="flash"></div>
<div >
<form action="#" method="post">
<input type="text" id="name"/>Name<br />
<input type="text" id="email"/>Email<br />
<textarea id="comment"></textarea><br />
<input type="submit" class="submit" value=" Submit Comment " />
</form>
</div>

commentajax.php
Contains PHP and HTML code.
<?php
if($_POST)
{
$name=$_POST['name'];
$email=$_POST['email'];
$comment=$_POST['comment'];
$lowercase = strtolower($email);
$image = md5( $lowercase );
mysql_query("SQL Comment table insert statement");
}
else { }
?>

<li class="box">
<img src="http://www.gravatar.com/avatar.php?gravatar_id=
<?php echo $image; ?>"/>
<?php echo $name;?><br />
<?php echo $comment; ?>
</li>

More jQuery and Ajax Tutorials : Take a look at this link

Comments
{ 264 comments }
bitlimakina said...

best practice, thank you

Vasil Dakov said...

Cool! Thank you!

Anonymous said...

The javascript is some obtrusive: when you disable javascript the form doesn't work. Better is posting to an existing page. With jQuery, you could change the action and do your AJAX thing.

Anonymous said...

hey ... this is a very good script but what i wanted to know was that if i practically add something like this on my website then where do i store my comments .. how is this script going to change. please help me with this.... waitin..

Anonymous said...

Yes where to store the comments :)

Srinivas Tamada said...

Comments will store in database table..

CREATE TABLE comments
(
com_id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(25),
email VARCHAR(25),
comment TEXT
);


Edit " commentajax.php " SQL Statement

mysql_query("INSERT INTO comments (name,email,comment) VALUES ('$name','$email','$comment') ") ;

Anonymous said...

thanks for the fast reply , my mean is too keep
the comment on the page like when the comment
just come also

this character ' is transform to /

can we make clicable link from the comments ?

thanks and very good job :)

Swayne said...

exactly what i was looking for, thanks

Anonymous said...

nmn

laura said...

nice script but how to keep the comments visible ??

karlamarie bei said...

hello! i love the script.. so i tried to change it a bit.. can you please show me how to add an input there as file? i want to add upload file using that script... please help me...

Anonymous said...

Looks perfect, thanks.

Anonymous said...

Can I get some clarification on what I need to do in order to store my posted comments here?

Namely, a better explanation of the following:

"Comments will store in database table..

CREATE TABLE comments
(
com_id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(25),
email VARCHAR(25),
comment TEXT
);


Edit " commentajax.php " SQL Statement

mysql_query("INSERT INTO comments (name,email,comment) VALUES ('$name','$email','$comment') ") ; "

Srinivas Tamada said...

Add one more column in "Comments" table

CREATE TABLE comments
(
com_id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(25),
email VARCHAR(25),
comment TEXT;
post_id INT // article or post ID
);

Alread comments table created.. use below statement.

ALTER TABLE comments ADD post_id INT;



Srinivas Tamada.
9lessons blog author

Anonymous said...

$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'password';

$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql');

$dbname = 'commentbox';
mysql_select_db($dbname);


Any help would be appreciated

Anonymous said...

My last comment cut off my question :S

I want to set up an SQL database to allow these comments to be saved. I have a basic knowledge of databases, but can anyone tell me how I set up the information I posted above to allow the comments to be saved?

The blog author's suggestion confused me slightly

DsurioN said...

Can anyone help me with selecting the comments from the database and displaying them in the same format? I can save them successfully but of course when you refresh the page they disappear.

Anonymous said...

::lost::

At this point I have a DB created, but even in reading everything here have no idea what I need to do next to be able to save these comments. I expected to actually see something in either comment.php or commentajax.php that asked me for the DB name, user and pass - something where'd I'd just plug these in and be good to go.

I need a "for dummies" version if someone should feel inclined. :/

Srinivas Tamada said...

Hi DsurioN

Displaying existing Comments.

Step: 1
-------------------------------------
<ol id="update" class="timeline">

Include Step:2 Code here

</ol>
--------------------------------------


Step:2
--------------------------------
<?php
// Here 23 (post_id) article id
$sql=mysql_query("select * from comments where post_id='23' ");
while($row=mysql_fetch_array($sql) )
{
$name=$row['name'];
$email=$row['email'];
$comment=$row['comment'];
$lowercase = strtolower($email);
$image = md5( $lowercase );
?>
<li class="box">
<img src="http://www.gravatar.com/avatar.php?gravatar_id=
<?php echo $image; ?>"/>
<?php echo $name;?><br />
<?php echo $comment; ?>
</li>
<?php
}
?>
------------------------------------

Anonymous said...

hi Srinivas,

Very nice comment system , but i have one question , is it possible to make this script work in other languages such as Arabic ( right to left languages).

If so please tell me which files need to be changed...

Thanks man.

Anonymous said...

Thanks for keeping it simple. Just what I needed.

JIm

Anonymous said...

Hi Srinivas,

Can we have the final script with all the feature
request ? to be more clear im sure it's easy for you
but just for newbies like me :)

Anonymous said...

try it

Anonymous said...

How can I revert the order where the li elements are placed? They are always placed 1 under the other... I would like to put one on topp of the other.
I tried changing $("ol#update li:FIRST").fadeIn("slow");
but it didnt work...
is there another way?

Anonymous said...

Hi Srinivas,
Actually i m making a social community website. I have one problem here how can i show the comment post in the wesite once it is refreshed it is gone though it remains in the database.
Is there anything i have to do ?

Anonymous said...

What about security? When doing a comment system like this, you expose the php file that handles the post, and also the variables.

Everyone who knows php can access that php file directly, and add comments to non-existing blogs.

Is there a way to prevent this? I'm making a system like this myself, and I need som kind of security.

sam' said...

cool,,
thank's for the sharing...
i will try it , ,,

Anonymous said...

You should be aware that if there is a lot of content in the comment box it looks a mess. The comment crosses over into the text fields.

Surprised nobody has noticed this. Tried it on the live demo in multiple browsers

Anonymous said...

Great turtorial. But if we have a lot of comments, how should we do next for the jquery pagination? Thankx

Anonymous said...

Great explaination

Anonymous said...

how do you make this comment system to display the time when the comment was posted

Anonymous said...

hi can this be themed like facebook

Anonymous said...

Hey, Nice script m8.

But if adding this to different pages while using the same db and table's will it only display the comments based on the page ID?

I see the post above and the additional table instructions but have yet to see if anyone actually got it working.

Any additional info would be greatly appreciated. Thanks :)

Anonymous said...

You should really make this a more complete script.
Its got great potential but its missing too many required pieces to be a viable option for anyone other than dev's.

Make a simple config file for mysql and include it with the download. It should also be built assuming people will be using it on multiple pages thus the post_id should be included by default.

oscar said...

hi can you explain the jQuery.js?


-oscar

Srinivas Tamada said...

Hi Oscar,

jQuery is great library for developing ajax based application. jQuery is the JavaScript Framework program, which simplifies the development of web applications. jQuery helps the programmers to keep code simple and concise. The jQuery library is designed to keep the things very simple and reusable.

Srinivas Tamada

oscar said...

thank you Srinivas Tamada,

i just have another question how can fix the comment msg it overflows in the div i want it to be align on the div or if you have a final sourcecode can you share it to me im working on my personal page im just testing in at localhost..do you have email?thnx

Srinivas Tamada said...

Comments appear on top

$("ol#update li:last").fadeIn("slow");

Change this into

$("ol#update li:first").fadeIn("slow");

Anonymous said...

how about captcha integration ?

Preeti said...

Srinivas u r too gud yar... was looking fr the same thing



Preeti

webdesign said...

Wow great example i have edit it and it now shows comments has an captcha and posts to a DB also it works on multiple pages remembering wich page it has been posted to !!

Great work

Anonymous said...

EFWGWERGRG

D3shi said...

Nice!

Anonymous said...

can i do pagging? in this script

David said...

Hi Srinivas,
Thanks for the script. I tried what you proposed to put one comment on top of the others

$("ol#update li:first").fadeIn("slow");

But it doesn't work. I can display the first comment but the others doens't appear. Can you help me?

Anonymous said...

thanks ya..

Srinivas Tamada said...

@ David

Comments appear on top
------------------------

You have two changes instead of the

$("ol#update").append(html);
$("ol#update li:last").fadeIn("slow");

to

$("ol#update").prepend(html);
$("ol#update li:first").fadeIn("slow");

David said...

Awesome! It works great. Thanks Srinivas

sreenivas said...

Great Work

Anonymous said...

I can't see anywhere your mysql_close(); statement if you are to create tables in your database. Do you keep it opened and lying like that all the time just for everybody to access?

Anonymous said...

Hello Srinivas,

I am lost on how to keep the old comments. What code and WHERE will I put it????

I am new to PHP and MySQL but very much interested in your work.

Anonymous said...

Hello Srinivas,

I am lost on how to keep the old comments posted and how to delete the old comments. What CODE and WHERE will I put it????

I am new to PHP and MySQL but very much interested in your work.

Many thanks!

Arnold

Anonymous said...

Hi Srinivas,

All of us appreciated your work! Many thanks and keep it up.

Can you post here the complete COMMENT SYSTEM you have done.

Because for newbies like me, I am kinda loss with all additional codes. Like displaying the old comments, where to put the code, etc.

Again, thank you!

Srinivas Tamada said...

Updated This Post Link

Comment System with jQuery, Ajax, PHP and MySQL (Version 2.0)

Anonymous said...

Great Work

Anonymous said...

Hey, nice script.. with easy understanding :-)

thanX
Manjula

Maximiliano said...

thank you! very good!

Femi Olarinoye said...

Was wondering; the comments show above the form. How about making it into the reverse and have the comments show below the form. This format might be needed if just a single field is to be filled in. Think of something like Facebook's share form.

Anonymous said...

good job

Munir said...

Thanks very nice

Anonymous said...

NICE!!!!!!

Anonymous said...

Cool!

حازم البدري said...

Thank you

Anonymous said...

nice

emildag said...

hello tutorial how I can incorporate that into my site built with Joomla? which file should I edit, I use as a component joomsocial

Anonymous said...

nice!!
thank you

chee kok ti said...

haha

Darwin said...

Thank you very much. Very usefull. Cheers! :)

Anonymous said...

nice article, thanks

My blog said...

thanks!

Anonymous said...

Nice tutorial, thank you

Anonymous said...

Great@@

Anonymous said...

cool

Anonymous said...

Tesing .. ajax is awsome

Sam said...

very nice

Rob said...

This is cool

Rob said...

Hello world!

manix said...

Hi,

Your code is terrible!! excelent work!

I just have a question. Is there a way to hide the location of commentajax.php from header? Cause the people can know where is it and try to access it directly.

Thanks

Justin said...

Real nice tutorial

craig said...

Awesome

Anonymous said...

luvlyyyyyyyyyyyyyyyyyyyyyyy

Prik thai said...

Thank you so mutch!

nunoz said...

very nice

can you make clone of zendesk.com of give information how to make one thanks

argentinoboy said...

HI

how can i show the comment post in my website once it is refreshed it is gone though it remains in the database.
Is there anything i have to do ?

Srinivas Tamada said...

@argentinoboy

Read following link ver 2.0

http://www.9lessons.info/2009/09/comment-system-database-with-jquery.html

Anonymous said...

Very good info. Thank you!
Maybe you can help me, how to make info not in ol tag but in table tag?

Anonymous said...

Thanks very much !!

Anonymous said...

Interesting

Anonymous said...

this is fine.......

Anonymous said...

nice topic yar...

Anonymous said...

thank you

Anonymous said...

thx bro

Anonymous said...

Tanks

Anonymous said...

its nice one

Anonymous said...

I modified the application to work with a database, you can download it here: http://www.getvay.com/pg/file/macs1407/read/1570/comentarios-es-jquery-php-mysql

Anonymous said...

THANKS

Hector said...

how do I make an Image a PHP file??

blogregator said...

Great post! Thank you!

kupa said...

lol, crashes in firefox

OrOsUs said...

NICE

Daniel said...

Pretty cool, been wondering how to do this for a while. :P

Adam said...

Nice, thanks for that, just saved me a few hours.

Hector said...

How do I change that avatar?! Please Help

Hector said...

PS: Why are the comments dissappearing when you go in to the page again?

davor said...

Great script, but when you put a blank space( hit spacebar) in textarea, you can still post a blank comment. How to fix that ? Tnx

Anonymous said...

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/a5530317/public_html/coment/comment.php

what this mean?
how to fix please

Srinivas Tamada said...

Check the SQL statement

torrent download said...

Wow great example i have edit it and it now shows comments has an captcha and posts to a DB also it works on multiple pages remembering wich page it has been posted to !!

Anonymous said...

is this an example of the system itself?

Anonymous said...

i love your script, you made me want to learn ajax now :)

Anonymous said...

excelent

Anonymous said...

Very cool

Anonymous said...

Wow, this is awesome!

I’ve implemented this and it works great. However, I’m having a hard time implementing multiple comment boxes on a single page. The best way to describe what I’m doing is to think of a twitter stream, and the users having the ability to view comments and add comments on each individual tweet. So I added another column to the comments table called item_id which will reference which item this comment belongs too. I’m not sure how to implement this though…..any help is greatly appreciated!!

Gindo said...

thanks i like it...

Anonymous said...

thanks

RAVI-47 said...

The comment system is great when used in conjunction with JQuery,Ajax,CSS and PHP

Anonymous said...

cool

@saikdcom said...

Awesome I'll give it a try, got a complete account/profile settings system ready, people can sign up, log in and out alright. Now I'm going for how the site is gonna work.
Can't believe people are still using IE, it's such a pain in the ass to make the site compatible, not sure I'll do it anytime soon.
btw I'm following you on twitter ;)

Anonymous said...

Very cool!

Matt Chambers said...

cool

tel said...

Excellent. Can't wait to give this a go, thanks.

Anonymous said...

Nice job

Anonymous said...

good

Anonymous said...

hi I am going to create admin page for comment system can you help me

keylogger said...

hi I am going to create admin page for comment system can you help me

Anonymous said...

test comment

Anonymous said...

Nice comment system!
How to implement 4(four) comment boxes on same page in 4 tabs (the comments need to be different)? And how to separate comments on different pages?

Thx a lot! sorry for my English.

Anonymous said...

just testing

Anonymous said...

same here

Anonymous said...

hello guys may someone help me?
my problem is "Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/a5619214/public_html/com/comment.php Unknown column 'post_id'"
What ti do? Thank you

Anonymous said...

nice

Anonymous said...

nice

Roko said...

This is great! || Thank you for sharing! || :D

Anonymous said...

great...

Anonymous said...
This comment has been removed by a blog administrator.
Alex said...

Hi Srinivas,

How could i make this automatically update ? I can store the values, i can display them, but i would like to refresh the page everytime a new comment is added ( basically a chat function .. ). Any sugestions? Your help is greatly appreciated :) Thanks!

Alex said...

Hello again, i have figured this out on my own. It's not the best solution, but this is my add :
in commentajax.php , instead of listing the last comment, you put the code to list all comments.

then, in your comment.php file, you create a function (ex: show_content() ) which contains the $.ajax code, without the data parameters. at the end of this function you add setTimeout("show_content()",2500); (2500 meaning 2.5 secs to refresh). You would need to clear the innerHTML of the update div, and remove the getElementByID('comment')="" statement, and than this can be used as a chat.

The instructions are short, but i can provide you the files so you can write more detailed instructions :) i'm sure people will be gratefull. My email is freecubex@yahoo.com (maybe you won't make this public,please!). Thanks!!!!
Alex.

Anonymous said...

nice. this is helpful

Anonymous said...

Hello,
First of all i want to say a BIG thanks to Srinivas Tamada for this great work!

But am having a small problem, i've developed your script to be comment inside comments!

And my problem is i want to view the comment only on the current post.

$("ol#update"+ReplyID).append(html);

Its not working, can you please help?!

Thanks!

Orange Dev Webdesign said...

OMG, this is nice.

I will implement this in my own website if I have some spare time.

Thanks.

swedaporean said...

How to implement this comment system with php smarty template pages?

Please advice?

Ahmed Mwafi said...

thanks

Anonymous said...

many thanks

Anonymous said...

thanks

Anonymous said...

nice

Anonymous said...

Thank you....

Anonymous said...

And now how can i add spam filteer to this commenting system.

Anonymous said...

thx. ..

hilflo said...

And How to do with a "select" instead of "input"

Anonymous said...

thx...

Anonymous said...

thx

Anonymous said...

uh

why dont you use these scripts on your site if they're so great?

Anonymous said...

good practics

Anonymous said...

nice

Anonymous said...

Muito bom! Very good!

Anonymous said...

very nice

Anonymous said...

does this site supports it?

Anonymous said...

nice !!
but, i'm facing problem.. when i use newline in comment.. it crossed to next comment part.
How can i resolve it..help me !!

Anonymous said...

hello

Anonymous said...

Its alright

Anonymous said...

Thx

gialang said...

Thank you so much <_>

Anonymous said...

Thank you for this, works great :)

Suhendri said...

nice info... thanks..

Anonymous said...

thanks fo the information....

eBoss said...

Nice Comment System

Anonymous said...

nice pretty cool but need to finish

Justin said...

Nice comment box script. I might have to work on one myself.

jren said...

I have added this code to my streamline, however after it posts the comment, I cannot get the text area to clear. Any thoughts?

රංගන දිසානායක said...

very interesting cods thanks a lot

dooloons said...

you chose to make a click event on the submit button, it would be more intereting to use an onsubmit event listener...

Carlos Clark said...

Firts of all thanks for the script im new to js and jquery so as ajax, is very simple and understandable. I have a site with several posts on a single page, i want to add comments to every single one of them, how can i tell the script which form is been submited?

Thanks!

ledien37 said...

thank!

Anonymous said...

wow

Anonymous said...

thank you

Anonymous said...

Thanks man !!!

Anonymous said...

Good work!

Anonymous said...

Thank you for this script. But I have one question - how can I add more fields. I make everything to works fine but I can not make show post_id. I try to add input hidden field with post_id and after that i try to access it with $_POST[post_id] but... it's not working. I try to add one row it in the JavaScript:

var post_id = $("#post_id").val();
var name = $("#name").val();
var email = $("#email").val();

But it still not working :) Any suggestions?

Anonymous said...

cool..........

Anonymous said...

Nice

Anonymous said...

Looks good!!!

Kevin Dixon said...

Pls can someone upload the working code and maybe post a link? is that possible here?. I really like this script, but it must be full of typo's or bugs judging by what people have commented on. Its an excellent looking comments system.

Kev

jigar said...

good one...

Davie_ng said...

how do i retain the comments while the page refreshes?...please any good assistance will be appreciated..thanks *

###You can add more fields###
Just change the Id element name to your desired..and feel happy
################################

$(function() {
$(".submit").click(function()
{
var name = $("#name").val();
var email = $("#email").val();
var comment = $("#comment").val();
var Id = $("#actID").val();
var dataString = 'name='+ name + '&email=' + email + '&comment=' + comment + '&actID=' + Id;
if(name=='' || email=='' || comment=='')
{
alert('Please Give Valid Details');
}
else
{
$("#flash").show();
$("#flash").fadeIn(400).html('(insert your loading image here)Loading Comment...');
$.ajax({
type: "POST",
url: "commentajax.php",
data: dataString,
cache: false,
success: function(html){
$("ol#update").append(html);
$("ol#update li:last").fadeIn("slow");
$("#flash").hide();
}
});
}return false;
}); });

Indian Classifieds said...

it is great article.

India Property said...

is this script working with mobile web browsers?

miraz said...

Nice script.

Anonymous said...

cool one

Fadi said...

nice

Chase Mobile Banking said...

Hi guys See this PHP script:-

Anonymous said...

this script is good but has one major problem which i think most people would prefer to have, and that is to have the comments stream always display, and not just display when a comment is sent

Laptop said...

good nice

testuser said...

does this comment goes directly or goes for approval first?

Anonymous said...

Nice sript, thanks man ! Just be good to add some function for paginatin comments - if we have moor comment about this article ?
But, again, thanks man !

Anonymous said...

hi

Anonymous said...

good

Anonymous said...

nice

Anonymous said...

i'm trying this. thank you

gul said...

I want only 10 comments once on a page than there shuld start a second and third page like youtube 1,2,3,4... . plz help me. Thanx

Anonymous said...

pretty nice comments box!

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