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Qué, por qué y cómo crear un plugin de WordPress para un sitio específico

Nota editorial: Ganamos una comisión de los enlaces de socios en WPBeginner. Las comisiones no afectan a las opiniones o evaluaciones de nuestros editores. Más información sobre Proceso editorial.

¿Desea añadir un plugin específico para su sitio web WordPress?

Un plugin específico para cada sitio le permite añadir fácilmente fragmentos de código a su sitio web WordPress sin depender de su tema.

En este artículo, explicaremos cómo crear un plugin de WordPress específico para un sitio y por qué es importante.

Site Specific WordPress Plugin

¿Qué es un plugin de WordPress específico para un sitio?

Un plugin de WordPress específico para un sitio es un plugin independiente que puede utilizar para añadir todos los fragmentos de código de personalización que no dependen del tema.

Cuando trabaje en su sitio web, a menudo encontrará tutoriales de WordPress que le pedirán que añada código al archivo functions.php de su tema o a un plugin específico del sitio.

WordPress no incluye plugins específicos para cada sitio. Tendrás que crear el tuyo propio y luego instalarlo y activarlo.

¿Por qué crear un plugin de WordPress específico para un sitio?

Como hemos mencionado antes, a menudo encontrarás tutoriales que muestran algún código que puedes añadir al archivo functions. php de tu tema o a un plugin específico del sitio.

Estos códigos personalizados se pueden utilizar para añadir nuevos tipos de contenido entradas, taxonomías, shortcodes, y toneladas de hacks para mejorar su sitio web.

Si añades el código personalizado al archivo de funciones de tu tema, desaparecerá si actualizas o cambias de tema.

Puede crear un tema hijo y utilizar el archivo de funciones del tema hijo para guardar su código. Sin embargo, tu código desaparecerá si cambias de tema.

Un plugin de WordPress específico para cada sitio te permite añadir fácilmente fragmentos de código personalizados a tu sitio web de WordPress y asegurarte de que son independientes del tema. Es un plugin de WordPress independiente, lo que significa que no depende de su tema, y usted es libre de actualizar o cambiar su tema.

Dicho esto, echemos un vistazo a cómo añadir fácilmente código personalizado utilizando un plugin específico del sitio. Le mostraremos dos maneras de hacerlo, y usted puede elegir el método que funcione mejor para usted (pista: Método # 2 es más fácil para los principiantes).

Método 1: Crear manualmente un plugin de WordPress específico para cada sitio

Sabemos que esto puede sonar un poco friki para los principiantes, pero intentaremos simplificártelo al máximo.

En primer lugar, debes crear una nueva carpeta en tu escritorio y darle el nombre de tu sitio web. Por ejemplo: mywebsite-plugins.

Creating your site-specific plugin folder

Ahora, abre un editor de texto plano en tu ordenador como Notepad o TextEdit.

Debe crear un nuevo archivo y guardarlo como mywebsite-plugin.php en la carpeta de plugins de su escritorio.

Creating the plugin file for your site-specific plugin

El archivo de su plugin necesita un código de cabecera específico para que WordPress pueda reconocerlo como plugin. Siga adelante y añada el siguiente código a su archivo mywebsite-plugin.php:

<?php
/*
Plugin Name: Site Plugin for example.com
Description: Site specific code changes for example.com
*/
/* Start Adding Functions Below this Line */

/* Stop Adding Functions Below this Line */
?>

Puede sustituir example.com por su propio nombre de dominio. Una vez hecho esto, el plugin específico de su sitio estará listo.

Hay dos formas de subir un plugin específico para un sitio web. Puede subirlo a través de su panel de administrador de WordPress o utilizar FTP.

1. Instalar plugin específico del sitio desde el área de administrador de WordPress (recomendado)

Este método es más sencillo y recomendable para todos los usuarios.

En primer lugar, debe crear un archivo zip con la carpeta de plugins específica de su sitio.

Los usuarios de Windows sólo tienen que hacer clic con el botón derecho del ratón en la carpeta de plugins y seleccionar Enviar a ” carpeta comprimida (zip).

Creating zip file in Windows

Los usuarios de Mac deben hacer clic con el botón derecho.

A continuación, seleccione “Comprimir mywebsite-plugin”.

Creating a zip folder on Mac

Una vez que tenga el archivo zip del plugin, vaya a la página Plugins ” Añadir nuevo en su área de administrador de WordPress.

A continuación, haga clic en el botón “Subir plugin” de la parte superior.

upload plugin

A continuación, haz clic en el botón “Elegir archivo” para seleccionar el archivo zip que has creado antes y, a continuación, haz clic en el botón “Instalar ahora”.

WordPress subirá e instalará el plugin. Una vez subido, deberá hacer clic en el botón “Activar plugin” para empezar a utilizar el plugin específico de su sitio.

Activate plugin

2. Suba el plugin de WordPress específico de su sitio a través de FTP

Para este método, no es necesario crear un archivo zip. Subirá el plugin a través de FTP.

En primer lugar, deberá conectarse a su sitio web mediante un cliente FTP.

Una vez conectado, vaya a la carpeta /wp-content/plugins/ en la columna del sitio remoto. A continuación, debe seleccionar la carpeta de plugins específica de su sitio y subirla a su sitio web.

Uploading plugin via FTP

Su cliente FTP transferirá la carpeta de plugins específica de su sitio a su sitio web WordPress. Esto instalará el plugin en su sitio web.

Sin embargo, deberá activar el plugin para empezar a utilizarlo. Para ello, vaya a la página “Plugins” del área de administración de WordPress y haga clic en el enlace “Activar” situado debajo del plugin específico de su sitio.

Activate plugin

Eso es todo. Su plugin específico del sitio está listo para ser utilizado.

Añadir fragmentos de código personalizados a su plugin específico del sitio

Hay dos formas de editar su plugin y añadirle fragmentos de código personalizados.

El primer método es hacerlo a través del área de administrador de WordPress. Puedes ir a la página Plugins ” Editor.

Verá un mensaje de advertencia y deberá hacer clic en el botón “Entiendo” para continuar. Alternativamente, si desea una forma más segura de editar los archivos, omita el segundo método a continuación.

Heads up warning in the plugin editor tool

A continuación, seleccione el plugin específico de su sitio en el menú desplegable “Seleccionar plugin para editar”.

El editor cargará tu archivo de plugins y podrás añadirle fragmentos de código.

Select a plugin to edit in the plugin file editor tool

Cuando haya terminado, haga clic en el botón “Actualizar archivo” para guardar los cambios.

Si falta algo en el código o puede romper tu sitio web, el editor de plugins deshará automáticamente los cambios.

Sin embargo, si el editor falla, y ves la pantalla blanca de la muerte, entonces puedes usar FTP para editar el archivo de tu plugin y deshacer esos cambios.

El segundo método consiste en editar directamente el archivo del plugin mediante FTP. Simplemente vaya a la carpeta de plugins utilizando su cliente FTP. Haga clic con el botón derecho del ratón en el archivo del plugin y seleccione “Ver/Editar”.

Editing plugin file via FTP

También puede descargar el archivo del plugin a su ordenador, editarlo y volver a subirlo.

Método 2: Añadir código personalizado usando WPCode (Recomendado)

Este método es mucho más sencillo y le ofrece una mejor forma de gestionar sus fragmentos de código individuales en WordPress utilizando WPCode.

Lo primero que tienes que hacer es instalar y activar el plugin gratuito WPCode en tu sitio web. Para más detalles, consulta nuestra guía paso a paso sobre cómo instalar un plugin de WordPress.

Una vez activado, el plugin añadirá un nuevo elemento / artículo llamado ‘Fragmentos de código’ a su menú de administrador de WordPress. Al hacer clic en él, accederás a una página en la que podrás gestionar todos tus códigos personalizados.

Para añadir su primer fragmento de código, haga clic en el botón “Añadir nuevo”.

Click the Add New Button to Add Your First Custom Code Snippet in WordPress

Accederá a la página “Añadir fragmento de código”. Aquí puede elegir un fragmento de código de la biblioteca prediseñada o añadir su código personalizado.

Para añadir código personalizado, vaya a la opción “Añadir su código personalizado (nuevo fragmento)” y haga clic en el botón “Usar fragmento”.

Add your new custom code snippet in WPCode

Ahora, puede introducir un título para su fragmento de código personalizado. Puede ser cualquier cosa que le ayude a identificar el código.

Después de eso, puede seguir adelante y pegar su fragmento de código en el cuadro de código. También debe seleccionar el tipo de fragmento de código PHP en la lista desplegable “Tipo de código” de la derecha.

Adding custom code

También puede añadir notas para el código en la sección “Información básica”.

En esta zona debe anotar qué hace este código, dónde lo encontró y por qué lo añade a su sitio web. Esto ayudará al “tú del futuro” a recordar por qué el “tú del pasado” añadió este código.

Add notes and tags to identify and organize your code snippets

También tiene la opción de asignar etiquetas a sus fragmentos de código, lo que puede ayudarle a organizarlos por debate y funcionalidad.

El plugin también te permite seleccionar cómo quieres ejecutar el fragmento de código. En la sección ‘Inserción’, puedes seleccionar el método ‘Auto Inserción’ para insertar y ejecutar automáticamente el código en tu sitio.

Puede elegir entre las opciones de área de administrador, front-end o en todas partes. Si no está seguro, mantenga la opción por defecto “Ejecutar en todas partes”.

Pick the insertion method for your custom code snippet

También puede elegir el método ‘Shortcode’. Con este método, el fragmento de código no se inserta automáticamente. Una vez que guarde el fragmento de código, obtendrá un shortcode que podrá insertar manualmente en cualquier parte de su sitio.

También puede utilizar la sección “Lógica condicional inteligente” para mostrar u ocultar fragmentos de código insertados automáticamente en función de una serie de reglas.

Use smart conditional logic to decide when snippets should load

Por ejemplo, puede cargar fragmentos de código solo para usuarios conectados, cargar fragmentos de código PHP solo en URL de páginas específicas, mostrar fragmentos de código en función del tipo de página, etc.

Por último, puede cambiar el conmutador de “Inactivo” a “Activo” y, a continuación, hacer clic en el botón “Guardar fragmento de código”.

Save and activate your custom code snippet

Si desea guardar el fragmento de código sin activarlo, solo tiene que hacer clic en el botón “Guardar fragmento”.

Una vez que haya guardado y activado un fragmento de código, éste entrará automáticamente en vigor en su sitio web si ése es el método de inserción que ha elegido.

Para más detalles, consulte nuestra guía sobre cómo añadir fácilmente fragmentos de código personalizados en WordPress.

Esperamos que este artículo te haya ayudado a aprender por qué y cómo crear un plugin de WordPress específico para un sitio. Es posible que también desee ver nuestra lista de consejos útiles archivo de funciones y los hacks de WordPress más buscados para utilizar mejor su plugin específico del sitio.

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Editorial Staff at WPBeginner is a team of WordPress experts led by Syed Balkhi with over 16 years of experience in WordPress, Web Hosting, eCommerce, SEO, and Marketing. Started in 2009, WPBeginner is now the largest free WordPress resource site in the industry and is often referred to as the Wikipedia for WordPress.

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Reader Interactions

120 comentariosDeja una respuesta

  1. Syed Balkhi says

    Hey WPBeginner readers,
    Did you know you can win exciting prizes by commenting on WPBeginner?
    Every month, our top blog commenters will win HUGE rewards, including premium WordPress plugin licenses and cash prizes.
    You can get more details about the contest from here.
    Start sharing your thoughts below to stand a chance to win!

  2. BSubra says

    Is it possible to add code snippets like Google Analytics Code, Adsense code in Site Specific Pliugin. Or only possible to add codes we generally put in functions.php file.

    I mean, is it possible to add codes in site-specific plugin what we generally put in Header.php file.

    • WPBeginner Support says

      You can do that if you would like, you can also use the insert headers and footers plugin.

      Administrador

  3. Bola Oussou says

    hi
    Thanks for this tuto
    however is there a way to make this plugging(not to be visible) not in plugging list and also in a specific folder (not wp-content folder) ?

    Thanls

    • Tor-Bjorn Fjellner says

      Actually yes, there is:
      Instead of placing the plugin in …/wp-content/plugins/ you put it in …/wp-content/mu-plugins/ (You may have to create that directory, if it’s not there yet.

      Plugins that are placed in mu-plugins are ALWAYS run, so the only way to deactivate a MU plugin (MU currently is construed as “must use”) is to delete it (or remain the directly mu-plugins to something else…).

  4. Judith says

    Hi I tried to do the Site-specific plugin, but it is not working, I get this message “The package could not be installed. No valid plugins were found.

    Plugin installation failed.”
    What do I do?

    • WPBeginner Support says

      Hi Judith,

      This usually means that the plugin header information is incorrect. You can try again and make sure that your plugin header is exactly in the format displayed in the tutorial.

      Administrador

      • Jonathan Manheim says

        I get this same error. I have tried maybe 10 times. Uploaded through admin and on FTP. Cannot get it to upload. I am using TextEditor to paste the code. Notice several things you don’t mention in the post that I wonder could be an issue. First, won’t let me save the file as .php. I have to save it as .php.rtf OR .rtf then go back and rename the file after it is saved.
        Second, not sure what you mean by making sure the format for the plugin header is exactly the same. Should the line number be in there? If so, I can’t get that to work. If I copy and paste with the line numbers, the green vertical line doesn’t show up and there is no space between the line numbers and the code. Or am I supposed to just copy the code (without the line numbers)? Either way, I’ve tried everything I can with my current Textedit application and it will not work.
        Any ideas? I can send you screen shots of exactly what I have if you would like

        • WPBeginner Support says

          Hi Jonathan,

          You will need to save file as .php. Please use a different text editor on Windows you can use Notepad or download Notepad++. On Mac, you can use TextEdit or download and install TextWrangler.

          You don’t need to copy and paste line numbers.

        • Kacper says

          In my case the issue was that the file had Unicode encoding. Changing it to ANSI fixed the issue.

  5. Ikram says

    Hi,
    Good day!
    Would like to know how to set a white paper in my blog post article to download it with add email address from the visitor.
    Thanks, Ikram

  6. Alain Fradette says

    Great info! Thanks so much. I have been using WordPress for years and this little gem made it so much easier!

  7. Abhijeet says

    I have edited some code in Style.css . Will it be overwritten if i update a theme?
    is it possible to create style css file in this site specific plugin?

  8. dave says

    White screen on publishing pages.
    The code works to show child pages on a parent page using the shortcode however I am getting white screen. Anyone know why?

  9. Tommy says

    The plugin generated 3 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

  10. Saurin says

    I believe best approach to add custom code to site is child theme. No matter if we need to customize theme or not. I mad a practice to always use child theme even if there is no customization. This habit saved my time & effort many times. I dont think it is good to create extra plugin for such customization.

    I believe in minimum use of plugin no matter how simple you created one.

  11. Jason says

    Which is better, site-specific plugin or Child Theme? or both?

    I need to create a custom post type to add some major functionality to my site so is the plugin better or the child theme and its functions.php?

    Thanks!

    • Josh says

      The thing is, is that you’re creating the plug-in yourself, using the functions the same exact way. So the answer to your question would be that neither is better, because you should be using them WITH each other.

  12. Vickey says

    How would I create a create a new plugin directory in Azure? I have WordPress running on Azure using MS SQL Server, which I activated using Project NAMI.

  13. vishal says

    not working on multisite with publisher theme can you help me this is my site and also tell me how can i remove featured image inside the post not from front page latest post

  14. Nadia Khan says

    Hi there,
    You WP Beginners are rock. and I want to thank you for your Struggles for us.
    Now come to the point. I have installed an theme and in that theme, there is an function that is showing wp toolbar for guests, I have tried so many times to find this function in theme files to remove this, but i can’t. So please help me to remove that toolbar, that is showing to every visitor with wordpress logo and wordpress’s own link to their website. Screen Shot is attached.

  15. Manuel says

    Does something like this work for plugins too? Im finding that I am making a few changes to plugins that I add to my site….many times deleting certain lines of code I dont want. I’m assuming that after I update that plugin, all my changes will be erased. How can I avoid this?

  16. Elizabeth says

    Hi, thanks for the post. I’m getting an error when I activate the plugin for some reason:

    Parse error: syntax error, unexpected ‘*’, expecting identifier (T_STRING) on line 9

    Any ideas what I’ve done wrong?

    Thanks!

    • WPBeginner Support says

      Hi Elizabeth,

      There is an unexpected asterisk sign in the code on line 9 which is blocking the php script. Edit the file again and copy the code exactly as it is shown above. Make sure that you don’t copy line numbers in the code click on the Copy button at the top right corner of the code snippet box

      .

      Administrador

  17. Steven Denger says

    I tried naming the new folder as you did in the example but I got an error that said something in the way of you cannot use a name like this. This Instruction may be helpful to some – but it is very difficult and confusing to me and does not help at all. As I said – you need to explain this down to the fine details or otherwise these tutorals will not help. The name of this site is wp BEGINNER – and that is what I am. You project these tutorals to the more experienced.

    I guess I will have to start going elswhere to get beginners instructiions because, most of time, wp beginner is not helpful – it is more like a techs only club.

  18. Steven Denger says

    How do you get to the /wp-content/plugins/yoursitename-plugin/ in wordpress and upload a file there? I am lost on the first line of instruction. You guys always assume that we know these things in your instructions but they are not clear enough.

    I went to cpanel and opened up the wpcontent > plugins – and it shows a list of plugins – but I am lost from this point. How do I go about uploading a file in here? I am a beginner – and you guys seem to always explain things like your instructing experienced techs. I am not but I go to WP Beginner to try to learn. It is usually difficult to follow your instructions and I end up having to go somewhere else in google search to find things explained down to a beginners level.
    If you want to be more helpful try breaking things down a little more simple.

    • Manuel says

      Hey Steven,

      I know the feeling! I’m far from a expert with wordpress and I pretty much live on google searches and this site trying to learn. I know a little bit and was able to get this to work. Send me your email and I’ll send you the steps with screenshots. I havent tested putting actual code into the plugin so we’ll see if that works….but I was able to see the newly created plugin on my admin page

  19. JoAnn Chateau says

    Thank you for the great advice and simple how-to instructions. I easily created a Site-Specific WordPress Plugin for my site and enabled shortcodes for widgets. Now I have less worry when changing themes, and I didn’t need to install another plugin. Again, thanks!

  20. george says

    hi i followed the instruction on how to make a site plugin for my site. ive uploaded it but cant see it in my list of plugins.

    any ideas why?

  21. Dawn says

    I cannot find where the folders live in the plug in directory. I tried searching for: /wp-content/plugins/yoursitename-plugin/ (with my site name).

  22. Kara says

    Never mind, I figured it out and got it activated. My hosting server was acting up, must have timed out or something…cheers!

  23. Kara says

    I followed your instructions but i don’t know how to activate it. It doesn’t show in my list of plugind in my wp-admin. Can you help?

  24. Stephanie says

    I’m getting the same error as Sonya above. Does anyone have a fix?

    Parse error: syntax error, unexpected T_LNUMBER in /home/statisu0/public_html/wp-content/plugins/statisticshowto-plugin/statisticshowto.com-plugin.php on line 10

  25. Susan says

    Hi again. I’ve been reading through all of the comments above and, while some show your answer and resolution to the problem, many don’t. So it’s hard for me to learn from how others resolved their problems! Anyway, here’s what I’m wondering: if by following the instructions in this post to create a folder within my “plugins” folder, how will I be able to see my new site-specific plugin file?
    For example, I followed the instructions to create a folder called susansinthegarden-plugin. Then I put my plugin code in a file called susansinthegarden-plugin.php. I can’t see the plugin when I go to plugins on my dashboard.
    Is this because the new plugin text file exists in a sub-folder under “plugins”? I can’t figure out what I’m missing but really need to resolve this. Is there anyone out there who can help me? Thanks so much!

        • WPBeginner Support says

          Hey Emy,

          The plugin header is the part that tells WordPress that this file should be treated as a plugin. It also tells WordPress the name of the plugin, version, and other information.

          In the code shown above, the header part begins right after the first line and ends at line 5. It contains plugin’s title and description.

    • Susan says

      OK, I resolved my program. Not being a code-writer, I didn’t realize that there was a separate header to wrap around the code I was borrowing. Duh. Thanks for your help.

  26. Susan says

    I followed your instructions to create a folder under wp-content/plugins etc. and put the file containing the code into that folder but I can’t see my new plugin when I go to my dashboard and look under plugins. Did I miss a step? Thanks in advance for your help!

  27. Edgar Ramirez says

    Hello

    I created the directory and the php file but i cannot see the plugin at all

    /wp-content/plugins/yoursitename-plugin/
    Open a blank file and save it as “yoursitename-plugin.php”

    dont see it on the dashboard plugin list and neither in the Plugin>editor

    Can you please help me

  28. Sonia Lacasse says

    When I try to activate the plugin, I get the following error message:

    Plugin could not be activated because it triggered a fatal error.
    Parse error: syntax error, unexpected ’06’ (T_LNUMBER) in /var/www/domain/wp-content/plugins/ETK-PLUGIN/ETK-PLUGIN.php on line 10

    Can you please help?

    Thanks!

  29. Catherine Argyros says

    hi there, when i put this in the directory

    I received this error message

    The plugin generated 2 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

    but my plug in is activated….. please help me understand what is going on?
    thank you

  30. xin a day says

    “All you have to do is create a new folder in the plugins directory. Example: /wp-content/plugins/yoursitename-plugin/
    Open a blank file and save it as “yoursitename-plugin.php”
    Put the following code in the file:”

    i hv few question on these .

    1. i can’t create a folder onthe plugin directory.
    2. where to open a blank file ?
    3. the plugin diretory cant install that file.

    thank you

  31. Alan Shapiro says

    This is a really useful post–thank you! Perhaps someone else asked this and I just missed it in all the comments, but: will a site-specific plugin override a function that is in the theme’s functions.php? For instance, if there is a “remove_action” in the functions.php, will the same “add_action” in the plugin take precedence?

    • WPBeginner Support says

      Both functions.php file and site-specific plugin are treated as plugins. Functions.php file loads after plugins but they do not have precedence over eachother. This is why using the same function in both files can cause unexpected results. The best way to override pluggable code is by using hooks and filters.

      Administrador

  32. Robert Masters says

    I’m building a plugin at the moment for a multisite network and I need certain functionality available only in specific sites, so this is a perfect article for me right now.
    I have one question though…..how do I name the site plugin folder for a site that is created as a subdomain? Example: subdomain.mainsite.com would it be subdomain-mainsite-plugin or just subdomain-plugin?
    Hope this makes sense, question based on your tutorial.

  33. hans says

    very good. when you create a second instance don’t forget do give the “register and load” function an own name, like i did ;)

  34. Jide says

    Nice one there. Kindly update the post to inform readers that after activating the plugin, they will have to click on the “edit” link on the plugins page, to add their codes.

    Most newbies might not know this…

    • WPBeginner Support says

      Actually we do not recommend editing plugins and themes from WordPress admin area. Instead, we would recommend editing your plugins in a text editor via FTP client. This way in case of an error you would be able to quickly fix it without losing access to admin area for too long.

      Administrador

  35. Mark Holland says

    Thank you thank you thank you!! This has solved an issue that’s been puzzling me for weeks – and now solved in less than 1 minute.

    Can’t express how grateful I am for you sharing your knowledge – thanks again!

  36. Luca says

    Thank you for the advice! But now I’m confused: what’s the difference between this method and the plugin “Code Snippet”? Is the result the same? Or do they accomplish the same thing in a different way?

  37. Malcolm says

    Three years later this post is still giving – It’s changed the way I think about customising wordpress – Thank you!

    I tried this today and created a a site-specific-plugin with code to hide the wordpress menu bar for non-admins, and to add my latest post to a ‘Current issue’ menu item. Both worked perfectly.

    But the third snippet I added to the plugin failed to work. When I copied the code to the child theme’s functions.php it worked as expected.

    Can you explain why this would happen?

    I’m trying to modify the effect of the plugin “Restricted Site Access” by allowing access to more than a single page. The code I tried in my site specific plugin and the functions.php was:

    //
    add_filter( ‘restricted_site_access_is_restricted’, ‘my_restricted_check’ );
    function my_restricted_check( $is_restricted ) {
    global $wp;
    if (
    $wp->query_vars[‘pagename’] == ‘contact’ ||
    $wp->query_vars[‘pagename’] == ‘subscribe’ ||
    $wp->query_vars[‘name’] == ‘aplr-2013-volume-21-number-2’
    )
    $is_restricted = false;

    return $is_restricted;
    }

    Any advice or comment would be welcome. I’m confused!

  38. harklord says

    after trying this. My site is opening blank… Please help.. Av tried deleting the files i created but still blank

    • Mohammed Amine says

      Fixed, actually it is necessary to add that php comment in the php file, or else it wont appear on the admin panel.
      That php comment is used to show the discription of the plugin in the admin panel.

  39. Paolo Bergomi says

    Hello,
    This is Paolo, i am building my website and theme with WP last edition 4.1.1.
    i Am trying to learn custom type fields and I found your website very useful. i hav ea issue, though: even if following this post i created the folder my theme plugin and with the related file .php you mentioned here, for the site specific plugin, copy all in localhost using WAMP server. i opened then my dashboard, went to plugins but my new plugin dont appear. what is going on? did i miss anything? thanks
    paolo

  40. WPBeginner Staff says

    You can try and fit your modifications in site-specific plugin by using filters. However, since you had to edit specific files we doubt that all your edits can be implemented in a site-specific plugin using filters. In that case you should make those changes into a child theme. All your custom CSS should also go into your child theme’s stylesheet. You can also use your site-specific plugin to enqueue a custom stylesheet.

  41. Bas van der Linden says

    Hmm, looks like my last post went missing while registering for this annoying disqus plugin.

    Anyways:
    At first I’d like to thank you for sharing this information.

    Secondly I do have several questions regarding this post.

    1) Is it possible to also make site specific plugins for other .php’s where I’ve added some codes?
    Such as front-page.php post-page.php and post-archives.php

    2) Is it possible to do something like this for .css codes?
    I run genesis as framework(Parent theme) and a child-theme that I’ve downloaded.
    Now since there are no grand-child theme’s in wordpress I’ve made my alterations in the child-theme’s folder

    This includes a lot of different .css edits, Is there a way to make site specific .css files/plugins like this, so I can maintain the origional child-theme (and perform an update if any updates are released)?

    3) When I create a site-specific plugin to change the footer and activate it, I will see both the origional footer and my own footer on the site.
    Is there a way to go around this?

    My plugin looks like this:

    Once again thank you for sharing this information on site-specific plugins, and I hope to hear soon from you guys.

  42. Chelsey says

    Thank you for your patience… I’m still trying to figure out how to ‘create a new folder to plugins directory’ :-)

    • Rodney Lacambra says

      Hi Chelsey. Consider this guide:

      Go to “File Manager”. It will take you to “/public_html” directory. Click on “wp-content >> plugins” . This is where you will “create” a folder called “yoursitename-plugin”. After that, create a file using some text editor(notepad++), paste the code given above and save the file as “yoursitename-plugin.php”. Upload it to “yoursitename-plugin” folder and activate it in your wordpress admin area. Easy as that!

      Hope it helps you a lot.

      Regards,
      NomadTech

        • Paolo Bergomi says

          me same..where did we make wrong? thanks in advance for any tips to solve this

  43. WPBeginner Staff says

    Your code seems to be correct. Here is what you can do:

    Make sure you have saved the plugin file in the /wp-content/plugins/ directory.

    Make sure that your plugin file name is correct. We recommend using yoursitename.php format. For example if your domain name is black-circles then your plugin file name should be black-circles.php

    • SteveMTNO says

      I originally had the plugin file (bc-plugin.php) in its own directory called blackcircles/wp-content/plugins/bc-plugins. That didn’t work.

      Then I tried moving the bc-plugin.php file from that folder to the blackcircles/wp-content/plugins folder. Still doesn’t show up in my admin panel.

      Do I have to “enable” it first before it shows up or something?

      Confused….

      • WPBeginner Staff says

        If the file is correctly placed in your plugins folder then you will see it in your WordPress admin area under Plugins. If you see your plugin there, then you will have to click on the activate link below the file to activate the plugin.

        Did you try renaming the file to something else?

        • SteveMTNO says

          Tried renaming it 3 times – none of them show up….

          I must be doing something wrong (or not doing something that I should be doing)…

        • SteveMTNO says

          So can I use this one site-specific plugin for multiple functions, or is it best to do something similar to this for each one?

    • Michael Cuomo says

      I’m having a similar issue with mine. I’ve created a site specific plugin to create a custom content type, but the custom content type is not showing up in my admin panel underneath pages like it should.

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