Subscribe to Comments 2.1

Subscribe to Comments 2.1 is a plugin that allows commenters on your blog to check a box before commenting and get e-mail notification of further comments. It is one of the most popular WordPress plugins out there for the simple reason that it helps foster a community around your blog by encouraging commenters to come back and stay engaged in the dialog.

Features

  • Rudimentary security
    • Users cannot enter a random e-mail into the subscription manager and modify someone else’s subscriptions
    • In order to modify subscriptions, users need to use a special link, given in notification e-mails, and printed in the comments form as long as they have their comment cookie
  • Recognition of subscription status
    • Unsubscribed users see the “subscribe to comments” checkbox, but subscribed users see a “Manage your subscriptions” link
    • The author of the post is recognized by either login or comment cookie and is assumed to be subscribed to the entry (as they will receive notifications through WordPress)
  • Themeable subscription manager
    • Uses visual style of WordPress interface
    • Can be optionally accessed via “Manage” menu in WordPress
    • E-mail verification of block requests
    • Javascript “invert selection” link to check/uncheck subscriptions for mass deletion
    • “Return to the page you were viewing” link that persists at the top of the page, so that users can easily return to the post they were reading once they are done modifying subscriptions
  • Ability to let users change notification e-mail address
    • In the subscription manager, users can request that their notification address be changed for all their subscriptions
    • Special link is sent to the old address for verification
    • Once clicked, their e-mail address will be changed instantly for all their comments
  • Easy integration into comments form
    • No modification of comments form needed for WP 1.5+ (supported themes)
    • For users who want custom placement of the checkbox/link to subscription manager, this can be done with one simple function call, placed anywhere in the comment form
  • Subscription without leaving a comment
    • By popular demand, you can now offer visitors the option of subscribing to comments on an entry without having to leave a comment themselves
    • If the reader later decides to join the conversation, their subscription continues without them having to explicitly set it
  • Customization
    • You can make the Subscription Manager that your users see use your theme’s header, footer and sidebar, using CSS to style it to fit your site
  • Internationalization
    • I’ve written Subscribe to Comments 2.1 with i18n in mind, making full use of __() and _e() functions. The domain is “subscribe-to-comments”.

Download

Version 2.1 Update

Version 2.1 of Subscribe to Comments has a feature that people have been begging me to implement for many months: you can view the list of people who are subscribed to posts on your blog, and you can also see a list of the most “subscribed” posts. Also in this version is a new one-file install. You just put subscribe-to-comments.php in your /plugins/ directory, activate, and you’re done. This version will work on WordPress versions from 2.0.6 through 2.3.1 (highest tested).

Versions

  • 2.1.2 Fixed a few bugs that’d send bad notifications (thanks Donncha!), cleaned up some code and moved to using proper WP escaping functions
  • 2.1.1 WordPress 2.2 compatibility! Also note that support for attribute_escape() is needed, so if you get errors about that, upgrade to the latest version in your branch
  • 2.1 big update, fixing a few potential XSS holes, and misc error messages… see above for details
  • 2.0.8 XSS security fixes, hopefully fixed “+” symbols in e-mail for good
  • 2.0.7 additional “funky e-mail” fixes
  • 2.0.6 support for e-mail addresses with “+” symbols, option to disable CSS “clearing”
  • 2.0.4 potential security bugs, better WP 2.0 capabilities compat

Feedback/Bugs

Feel free to leave bug reports or feature requests here. Use this entry’s comments to ask support questions or offer general feedback

I’ve spent a lot of time writing this code and supporting it. If you derive some benefit from this code, please consider showing your gratitute in a more tangible
way. Thanks!

I have received $0 this month for my coding efforts.

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5,000 Responses to “Subscribe to Comments 2.1”

  1. [...] Subscribe to Comments [...]

  2. [...] Subscribe to comments via email Just like the name implies, it lets visitors subscribe to comments via email (instead of doing a separate RSS feed.) [...]

  3. I too will love it if the author creates an update for 2.2. I have only the checkbox with no text, as described above, and even when I check it from another browser, I don’t get an email back.

    I would love an update, as this is a great plugin. I discovered it through another blogger who’s comments I subscribed to in a thread.

    Any chance Tempus Fugit will create an update soon? Thanks so much.

  4. [...] Subscribe to Comments E-Mail Benachrichtigung bei nachfolgenden Kommentaren. [...]

  5. [...] Generates statistics and a basic report of who has subcribed to your posts. Requires Subscribe to Comments 2.0 [...]

  6. Diva says:

    Hmmm, great idea. I think i will start to do this.

  7. [...] = Subscribe to Comments Avatares =  [...]

  8. [...] Subscribe To Comments – Allows readers to receive notifications of new comments that are posted to an entry. [...]

  9. [...] Sitemaps: Para mejorar las búsquedas de Google, Yahoo y MSN. Subscribe To Comments: Llevaba tiempo queriendo tener algo así en mi blog. Me encanta poder solicitar el envío [...]

  10. [...] Subscribe to Comments – This plugin is also very useful to create discussion. A problem I’ve encountered many times are readers who ask something in comment their comment, and then never come back to see if anybody actually cared to answer his question. This plugin ads a box which the user can tick, and then he’ll receive e-mail if anybody replies to his comment. This will also remind your readers that your blog exists, and maybe it’s time to check whether you made any new posts. [...]

  11. ovidiu says:

    I just upgraded to the latest 2.1.1 version of your plugin and still only see just a check box :-(

  12. [...] Subscribe To Comments: Opção para que o leitor após enviar um comentário possa continuar acompanhando os comentários [...]

  13. andrew says:

    great plugin. does it works with wordpress versions 2.2/2.2.1

  14. Sherman says:

    Hi

    I have similar problem with some wordpress 2.2.1.

    Both the check and text aren’t displayed at all.
    Here’s the site: http://www.pagethinker.com

    Would appreciate your help. Thanks.

  15. [...] (o stelabouras έδωσε τα φώτα-thanks), βάλαμε ένα γαμάτο plugin: Subscribe-to-Comments Τι κάνει; Πολύ απλά σου έχει μια επιλογή όταν γράφεις [...]

  16. [...] Subscribe to Comments 2.1, guess what this one does? Help people subscribe to comments. I think this will be helpful to keep people in the loop. [...]

  17. [...] ninja Mark Jacquith has updated his excellent Subscribe to Comments Plugin to work with WordPress 2.2 and higher. Pick up version 2.1.1 of the plugin as soon as [...]

  18. bruce says:

    Thanks for this cool plugin. My first time with WP, so still very much a Noob

  19. Mark says:

    The issue with options not showing up (like the next next to the check box) is due to a bug in WP 2.2.x … I’ll be releasing a new version of the plugin to work around it, and I’ll be making sure WP is updated as well.

  20. Diogenes says:

    Great news! Hope all issues related by users get resolved. Thank You Mark.

  21. GeekAlerts says:

    Very happy to hear, thanks a lot Mark!

  22. I had some issues with 2.2 and with Mark’s help through the site resolved them. Thanks to Mark for his help, and for this excellent, free plugin.

  23. [...] Subscribe to Comments – várias vezes os leitores fazem perguntas nos comentários e esquecem de retornar para ler as respostas. Este plugin permite que os leitores recebam por email os comentários realizados no post em que se cadastraram. [...]

  24. Mark says:

    And to anyone getting this error:

    Fatal error: Call to undefined function: attribute_escape()

    This means that you’re running an older, definitely insecure version of WordPress. As of this writing, you should be running either WordPress 2.0.10 or WordPress 2.2.1

  25. candycgiz says:

    great apps

  26. Thanks Mark!

    I really look forward to the new version of Subscribe to Comments plugin that will work with Wordpress 2.2.x.

    Sherman

  27. [...] Subscribe To Comments [...]

  28. Schanie Ken says:

    Liked it from description but found a couple of problem comments.
    I have subscribed, if I get emails from here, I will try it straight away.

    Schanie

  29. [...] Subscribe to Comments 2.1 – blogs are communities. Allow your commenters to follow comment threads by subcribing to comments. [...]

  30. [...] dos plug-ins que considero indispensável para qualquer blogue WordPress é o plugin Subscribe to Comments que permite que os comentadores recebam uma notificação, via e-mail, quando surgirem novos [...]

  31. [...] Subscribe To Comments : [...]

  32. panny says:

    Doesn’t work on my site,
    I’m seeing only a checkbox.

    http://www.italianswaad.in

  33. Pottblog says:

    Pottblog: Neues Layout und neue WordPress-Version…

    So, einige Tage habe ich jetzt immer mal wieder unter der Haube gewerkelt – jetzt bin ich für’s erste fertig:
    Es gibt ein neues Layout im Pottblog – auch wenn das nicht sooo neu aussieht. Außerdem wurde dann auch gleich mal die neue Wor…

  34. axil says:

    After upgrading to 2.2.1, I gave the plugin a shot and it behaves like the other guys are describing — all I see is a checkbox and no text. It looks like it would have been a nice plugin. I’ll check back in a few weeks.

  35. Axil says:

    ok…this plugin DOES work, but it’s not immediately clear that there are no problems due to the lack of meaningful (or any) defaults for the text that should be displayed. I guess most of us were expecting it to work as soon as we activated it and it’s currently misleading. What’s needed is some text (ie. “Notify me of follow up comments via e-mail”) to be entered in the Not Subscribed text box under Options | Subscribe to Comments area in WP. Another meaningful default that should be present is having the text “You are subscribed to be notified of follow up comments by email” in the Subscribed text box. This would be immensely helpful so new users aren’t mislead into thinking the plugin is broken. There’s also a text box for Entry Author, but I have no idea what’s that for or where it’s displayed. I’m still experimenting and becoming acquainted with the plugin. That said…this is a very nice plugin. Thanks!

  36. WirelessGuru says:

    Here’s strange behavior:

    WP > Options > Subscribe to Comments worked as expected before I moved my site from a sub-directory to the main directory of my site. Now in my main directory, WP > Options > Subscribe to Comments displays the same page as WP > Manage > Subscriptions. The sub-menu name even changes to “Subscriptions” after I click on WP > Options > “Subscribe to Comments”

    In summary I can’t change the options page anymore. Luckily I had added the text next to the checkbox (as described in Axil’s comment above), before I moved my site.

  37. [...] Subscribe To Comments : This is for you who left a comment and would like my blog to send you a message once someone reply or add a new comment. Or when I replied to your comment. [...]

  38. [...] Die Live-Vorschau erleichtert das Kommentieren und Folgekommentare können mit nur einem Klick per Email abonniert werden. Fotos von Kommentatoren – sogenannte Gravatar-Bilder – und die letzten Kommentare in der [...]

  39. Dave says:

    Is it possible to set the default for the Subscribe checkbox to “checked” so people are subscribed automatically, unless they uncheck the box?

    I’ve seen this be the case on other peoples’ blogs, and want to try it out.

  40. [...] is it Subscribe to Comments 2.1 is a plugin that allows commenters on your blog to check a box before commenting and get e-mail [...]

  41. [...] absolutely love the Subscribe to Comments plug-in from Mark Jaquith. The plug-in allows visitors leaving comments to subscribe to all future comments for a particular [...]

  42. [...] Для этого нужен специальный плагин. [...]

  43. Chris says:

    Thanks for this plugin, however after I’ve configured it and added the PHP code to show the checkbox, I see nothing like others that hat WP 2.2. I’m waiting for the update as well.

    Thanks!!

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  46. Nancy Rhodes says:

    .

  47. Miles Evans says:

    Another guy anxiously awaiting an update. On 2.1.2 I see no errors but subscribers simply do not get any emails. It worked before we upgraded WP to 2.1.2.

  48. [...] SubScribe to Comments-plugin, waardoor je gemaild wordt als iemand na jou een reactie achter laat op het [...]

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  50. [...] Efter den fantastiske modtagelse af den allerførste podcast herfra, har jeg implementeret et par nye ting. Først og fremmest kan du nu abonnere på kommentarsporene for de enkelte poster, ved at sætte et lille hak i boksen under kommentarformen. Interesserede kan finde samme WordPress plugin her. [...]

  51. [...] Subscribe to Comments — I’m pleasantly surprised at how often this is used. It adds a checkbox to the comment form and, if checked, sends you an email each time someone else comments on the same post. A simple way to stay in the loop of a discussion. [...]

  52. [...] Subscribe To Comments – Allows readers to receive notifications of new comments that are posted to an entry [...]

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  56. [...] plugin you are refering to is Subscribe to Comments [...]

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  59. Thanks for the sweet plugin.

  60. [...] To CommentsSubscribe to Comments is a plugin that allows commenters on your blog to check a box before commenting and get e-mail [...]

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  65. Rachel says:

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  66. Thanks forthis great Plugin !

  67. [...] Subscribe To CommentsAllows readers to recieve notifications of new comments that are posted to an entry. Based on version 1 from Scriptygoddess By Mark Jaquith. [...]

  68. [...] Subscribe to Comments Allows your readers to subscribe to posts that they are interested in. They will be sent an email [...]

  69. Stephanie says:

    I just uploaded and activated your plugin. I have
    the line ID); ?> in my comments.php and a checkbox shows up. But there is no text next to the checkbox. And in my admin menu I get no options where I could change the text that appears next to the checkbox. I only get the Comment Subscription Manager with
    Find Subscriptions.

    Did I miss something?
    If I put in do I need to delete the other bit of code?

    Also, as I’m running a bilingual blog I need the missing text to be both in German and in English. Is there any way to do that?

    Thank you for your help!

  70. [...] replies to specific comments, so it’s easy to follow conversations. Another plug-ins lets you subscribe to comments so you don’t have to keep checking back to see if replies have been [...]

  71. [...] biri fikrine karşılık yazılacak yorumları takip etmek isteyebilir. Bu takibi sağlamak için Subscribe to Comments eklentisini [...]

  72. [...] Subscribe To Comments(Yorumlara abone ol): co.mments veya coComment kullanıcısı olmadığınız sürece, ki bazı bloglarda en üstte kalmak gerçekten çok zordur; çok acı çekersiniz çünkü insan oğlu çok meraklıdır, hele konu yorumlar olunca! Bu eklentiyle ziyaretçileriniz kendinden sonra yazılan mesajlara abone olabilirler, böylece cevap yazıldığı anında maille bildirilmiş olurlar. [...]

  73. Larry says:

    To me setting this up this not very intuitive and there are really no instructions for everything on the “Subscribe to Comments Options” form. Do I need to set up a page for the Subscription Manager? What is the [message_link]? What are the classes used for the Subscription Manager? What needs to be in “HTML for before the subscription manager” and “HTML for after the subscription manager” blocks? I guess if I knew if a page needs to be set up the HTML many be more clear.

  74. Larry says:

    I was able to figure everything out except how to find the right url to insert for the subscription manager. I have no idea what “[manager_link]” is.

  75. Rob says:

    This doesn’t work with my WP-2.2.2-alpha (wordpress.org SVN). I had to do the following:

    Index: subscribe-to-comments.php
    ===================================================================
    — subscribe-to-comments.php (revision 15373)
    +++ subscribe-to-comments.php (working copy)
    @@ -710,7 +710,7 @@
    }

    if ( !$settings['clear_both'] ) {
    - $settings['clear_both'] = ‘clear_both’;
    + $settings['clear_both'] = ”;
    $update = true;
    }

  76. [...] Subscribe to Comments ~ permite que os leitores recebam emails quando houver um novo comentário onde postaram. Muito [...]

  77. Larry says:

    I see the light. Sorry for the earlier post but the instructions could be better. The plugin works great!

  78. [...] on your own. But a blogger can integrate the subscription process within the blog by using the Subscribe to Comments plugin. This inserts a checkbox beneath the comment form that the users can check to gain updates [...]

  79. [...] Subscribe To Comments – eu acho que todos os blogs que utilizam o WordPress devem ter esse plugin que faz o leitor receber no seu email os comentários de um post (se deixar marcado é claro). [...]

  80. Is there a place that tells me how to set this up? I have it installed and activated and have no clue how to configure it. There is no indication at my comments that anything is going on. I’m using problogger theme.

    Thanks in advance.

  81. axil says:

    @ Lori and maybe some others…I’m not trying to steal the thunder from the author of this plugin. He did a great job on it. But as some of you are noticing…it’s kinda hard to understand exactly how to set this up.

    I posted a little set of instructions on setting this up on my blog: http://www.boojies.com/2007/07/08/tips-increase-the-stickiness-of-your-site-with-the-subscribe-comments-plugin/

    I went thru the same pain. I hope it helps.

  82. Thanks. It helps a little but I don’t even have the checkmark showing to show that you could subscribe if you wanted to.

  83. axil says:

    @Lori

    Then this is different. I’m not sue what is wrong and it suggests that the plugin is not installed correctly. It’s been a while since I installed it and I would take a seoond look at the readme file (if any). Maybe he wants/expects the plugin to be installed in a directory subordinate to plugins. I just can’t remember. What I do remember was that once I installed and activated the plugin, all I got was a blank checkbox. That was the major hurdle for me. Since I’m subscribed to this plugin :-) I’ll keep tabs on it to see if I can help. But honestly, installing the plugin and getting the blank checkbox was the easy part.

  84. Thanks again.

    I have a feeling it has to do with the copyblogger theme. There was another issue with it hard coding (i think someone said that) some aspect of the comment functions and I think that might be going on here too.

  85. [...] Subscibe To Comments Subscribe To Comments is a plugin that allows commenters on your blog to check a box before commenting and get e-mail notification of further comments. It is one of the most popular WordPress plugins out there for the simple reason that it helps foster a community around your blog by encouraging commenters to come back and stay engaged in the dialog. [...]

  86. [...] Subscribe To Comments – Envia um email para o usuário, sempre que houver comentários novos, no artigo que ele comentou. [...]

  87. [...] Subscribe to Comments (Yorum AboneliÄŸi Eklentisi): Subscribe to Comments 2 ziyaretçilerinizin sitenizdeki yazılara yapılacak yorumlara abone olmasını saÄŸlayan bir WordPress eklentisidir. Bu eklenti sayesinde yeni yorumlar isteyen kullanıcıların e-posta adresine bildirilir. Bu eklenti ziyaretçilere yeni yazıları bildirmez. Bu amaçla Skippy’nin Subscribe2 eklentisi kullanılabilir. Subscribe to Comments eklentisinin Türkçe sürümü bu adresten indirilebilir. [...]

  88. Müzikler says:

    Great plugin ..U made it yourself ?? Great job

  89. [...] Subscribe To Comments: subscribirse a los comentarios via email. [...]

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