Recently I have been working on a large project that required using the WordPress multisite. WordPress Multisite enables you to create multiple websites from a single installation, requiring only one database and one set of files for many websites. On my macOS devices I use MAMP PRO app by appsolute GmbH for local development and therefore I needed to get MAMP working with WordPress multisite and sub domains. In this tutorial, you’ll learn how to run WordPress Multisite with a MAMP PRO app.
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I love using Jekyll and Bootstrap to create static websites. Jekyll is pretty cool, but doesn’t have really much helper utils to get common tasks done well and fast. In building a website powered by Jekyll, I want to have ability to create a dynamic navigation bar with highlighting of the active element in the bar. I also wanted the bar to support the second level elements (i.e. Bootstrap Dropdown menu). Since I don’t like hard coded HTML navigation links, I therefore worked out an alternative, configurable way. This is the solution I arrived at after a few hours of thinking and code writing.
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My WordPress website crashed after installing an update of one of the plugins. Then I could see only the white screen with the following error message:
Fatal error: Can’t use function return value in write context in /public_html/domain-name.com/wp-content/plugins/some-plugin/inc/php/functional.php on line 19Read more...
Google Analytics allows you to get information about your websites visitors such as the devices or OS they were using and their location. Such information can be very useful for deciding how best to deliver content. Below, I’ll explain how to set up a Google Analytics on the WordPress website.
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After making an update to one of my WordPress plugins, when trying to load plugin settings page, I get the following error message:
Fatal error: Can’t use function return value in write context in /public_html/domain-name.com/wp-content/plugins/rss-feed-icon-for-specificfeedscom/inc/php/functional.php on line 19Read more...
I’ve been writing WordPress plugins for a long time. At the top of the main plugin file, I usually define some constants. These constants contain basic information about my plugin, such as: Name of plugin, Path to plugin folder, Text domain name, and etc. Constants give me the opportunity to have easy and quick access to this information. And if I need to change any of this information, then I just change it once in constant instead of looking for every mention of this information in all plugin files.
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We can set up a local version of our Jekyll GitHub Pages website to preview our website before making the changes public. But when I run the jekyll [build | serve] command it throws the following error message:
For many websites that publish content for free, ads are one of the primary sources for getting revenue. This revenue is spent for paying the expenses to run the website. Reduction of the displayed ads means less revenue. If you’re finding that the majority of your website’s visitors are blocking ads then you might want to try displaying a friendly message asking them to disable the ad blocker extension that they have installed in web browser. In this article I’ll show you how I detect the ad blockers and show the message to visitors of my website.
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Sometimes when I surfing the Internet I see the sticky ellements that applied on website. Most often it’s a sticky ads that placed in sidebar. Sticky ad is an ad unit that stays in place while the page scrolls. Some are fixed completely when others (often placed at the end of sidebar content) scroll until they are in view then stay in a fixed position as the user scrolls further down the page.
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In addition to custom JavaScript files many developers find jQuery useful. jQuery is the most popular JavaScript library available that allows developers to easily and quickly add enhancements to the appearance and behaviors of their projects. So developers can perform common JavaScript functions while using less code.
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An easy to use WordPress plugin that replaces the default Post & Page HTML/Text Editor with an enhanced editor by a CodeMirror library. The WordPress default Post & Page HTML/Text Editor is great for doing some custom changes to HTML markup of your post/page, although it is rather limited. This is where the “Syntax Highlighter for Post/Page HTML Editor” can help. With an enhanced HTML/Text editor you can see a code with syntax highlighting, and with line numbering, so you can easily read your HTML markup and detect any errors.
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Allowing users to share your articles on social media is a common blog/website feature. More share is equal to more eyeballs on your article. Shares will drive traffic to your blog/website and sometimes it may go viral. But, if you read a lot over the internet then you know how hard it is to share an interesting article with your friends if it doesn’t have a share buttons, so it is necessary to provide an option to share. In this article I show you how I added the social media share bar widget to this Jekyll website.
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MailChimp is a great solution to add the subscription form to our websites. The only problem is that the MailChimp Subscriber Pop-Up doesn’t work on WordPress websites. I added the MailChimp Subscriber Pop-Up embed code to one of my WordPress websites, but nothing happened when I loaded any website page where the pop-up should have appeared. I searched Google and noticed that many others have the same issue in WordPress.
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My Jekyll based website have a small number of first-tier pages that I would like to display in the navigation menu, but I also have some second-tier pages that I would like to not junk up the navigation menu. There are many ways to exclude pages from the navigation menu in Jekyll, but I’m trying to avoid using plugins, because I believe that the simplest solution is to just exclude second-tier pages from the navigation menu entirely. One quick and easy way I found is to simply harness the power of Jekyll’s Front-matter for any page I want to exclude. It’s a simple two-step process.
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Sometimes I want to create a simple and intuitive graphic interface for my clients in order to give them an opportunity to upload an images on the options page of my plugin. I could make just a text input field where they can place the image URL, and sometimes it’s what I need in a certain situation, but more often it is a not professional to make so. I want to have a happy clients, I want to make a user-friendly interface of my plugins. In this article I will show you how to integrate a beautiful, simple and customizable WordPress Media Uploader into your plugin options page.
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An easy to use and lightweight WordPress plugin that lets you easily add the RSS feed icon by using a simple shortcode in any place of your website, such as: header, post content , page content, sidebar and/or footer. RSS feed icon allows your visitors to receive messages from your Blog/RSS feed by email.
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Some of my WooCommerce clients didn’t want to show the “Additional Information” tab on the single product pages on their website. There are 2 simple solutions: CSS one to hide this tab and PHP one to delete it completely. In this article I show you both solutions.
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After update to new release of SSH, when trying to connect to my server by using SSH, I get the following message:
Unable to negotiate with 192.168.1.1 port 22: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1Read more...
Hello everyone! For any blog owner or web designer it’s important to know where to download quality resources: fonts, images, icons and more. Since I am not just a web designer, but also an illustrator, so for my projects I draw icons by myself. But sometimes, due to lack of time, I prefer to download already made icons. Today I’ll tell you about my favorite website where you can find free or premium icons for any taste and color. I’ll tell you about IconFinder.com, which has the largest collection of premium icons in the world.
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“My Custom Styles PRO” is a premium WordPress plugin that gives you the ability to easily and safely add your custom styles (CSS code) to WordPress website’s <head> section, directly out of your WordPress Dashboard, without any need of an external editor. This is a “PRO” version of the plugin “My Custom Styles”. More features, more power. Unlimited number of snippets, Trigger for temporary disable the certain snippets, Automatic backup of all snippets to a file, CSS minifier, etc.
“My Custom Functions PRO” is a premium WordPress plugin that gives you the ability to easily and safely add your custom functions (PHP code) for execution in WordPress environment directly out of your WordPress Dashboard and without any need of an external editor. This is a “PRO” version of the plugin “My Custom Functions”. More features, more power. Unlimited number of functions, Trigger for temporary disable the snippet, and Automatic backup of all functions to a file.
A great way to keep up to date with a blog that you love to follow is to subscribe to an email subscription of their posts. That way, when a new post is made, it lands right in your email inbox. If you want to offer this to people who visit your blog, it is easy to do. In this article I show you how to add to your blog an email subscription form that connected to Feedburner.
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A great way to keep up to date with a blog that you love to follow is to subscribe to an email subscription of their posts. That way, when a new post is made, it lands right in your email inbox. If you want to offer this to people who visit your blog, it is easy to do. In this article I show you how to add to your blog an email subscription button that connected to Feedburner.
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Most blog owners that uses the Disqus comments system want to display the comment count for each page with comments, on their home page. Luckily Disqus has built in support for comment count. The setup isn’t difficult, but does require a bit of theme editing.
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Nowadays most of the people use Skype, but not everyone knows that we can use an HTML link to launch Skype calls from your web browser or emails. Today I’ll show how to add a Skype “Call Me” button to your website or blog and let people get in touch with just the click of a button. Whether they’re on a computer or mobile, they will get through with a voice call or an instant message.
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This Privacy Policy Template is covers the general privacy concerns and regulations. I hope you find it useful and a good starting point in compiling your own privacy policy for use on your own website or app. Feel free to add stuff that I haven’t added, and remove stuff that you don’t like. If there are ways that I can do things better, you should absolutely report issues or send me a pull request because I love them so much.
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An easy to use WordPress plugin that provides a simple way for embedding syntax-highlighted source code within pages or posts on your website, without losing it’s formatting or making any manual changes. Supporting 14 languages, 16 shortcodes and 36 themes. The syntax highlighting feature implemented via a CodeMirror library. If you want more options then tell me and I will be happy to add it.
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By default Jekyll 3, ships with Rouge syntax highlighter. But for some reasons you may want to replace it with Prism.js syntax highlighter. Prism.js is a very lightweight JavaScript library to provide code highlighting on websites. In this article I will show you how to set up it on Jekyll-based website.
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By default Jekyll version 3, ships with Rouge syntax highlighter. For some reason, you may want to disable it. For example, if you replace the built-in Rouge to another syntax highlighter such as Prism.js or your own custom highlighter.
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We can set up a local version of our Jekyll GitHub Pages website to preview our website before making the changes public. But when I run the jekyll serve command it throws the following error message:
GitHub Metadata: No GitHub API authentication could be found. Some fields may be missing or have incorrect data.Read more...
Jekyll has built in support for Syntax Highlighting of over 100 languages. You can have code snippets highlighted so that they are easier to read on your GitHub Pages website. In this post I will show you how you can integrate Rouge into your Jekyll setup.
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Flattr is a free and simple way to earn money from blog posts. My Github hosted Jekyll website is being used primarily as a blog as you can see. By placing a small Flattr button at the end of each blog post, just above the comments section, I can ensure that visitors of my blog have an opportunity to thank me for the article. Now, step by step guide on how I did it.
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The beauty of icon-fonts is that they are in essence, fonts. Which means they can be used much like any other piece of text. Unlike images they can have their colour changed easily, can be scaled and are lightweight in download terms. And they are fully responsive and retina friendly. The huge choice available at Font Awesome, Bootstrap and Google font icons means that you should find the exact graphic you are looking for and when combined with other muse assets you can quickly and easily build buttons, graphics and widgets. In this article you’ll learn how to use and customize the Font Awesome, Bootstrap and Google font icons in any Muse website.
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The new HTML5 form input types save me tons of work on form validation, and they’ll assist your users in filling them (by providing more in-browser features, alternate keyboard layouts and more). It works great, but unfortunately, the Safari and Chrome browsers uses their own default stylsheet for this inputs, and so you can’t style (add a CSS properties) the search input yourself. I didn’t need this in-browser style for my search input, because I want to add my own CSS properties to search input, so after some searching, I discovered the below solution.
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Some time ago I was faced with such a problem. I have tried to add a new post to my Jekyll website, but I could not see it on the generated pages when I run jekyll serve. So what are the some common reasons for a Jekyll post to not be generated?
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In this tutorial I show you how to generate an Envato Marketplace API key. This API can be used for various things, like:
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Google Analytics allows you to get information about your websites visitors such as the devices or OS they were using and their location. Such information can be very useful for deciding how best to deliver content. Below, I’ll explain how to set up a Google Analytics on Github website that is built using Jekyll.
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Google AdSense is a free, simple way to earn money by placing third-party advertisements on a website. My Github hosted Jekyll website is being used primarily as a blog as you can see, so I wanted to host an advertisement at the end of each blog post, just above the comments section.
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An easy to use WordPress plugin that replaces the default Theme and Plugin Source Code Editor with an enhanced editor by a CodeMirror library. The WordPress default Theme Editor (in Appearance => Editor) and Plugin Editor (in Plugins => Editor) is great for doing some custom changes to your Themes or Plugins files, although it is rather limited. This is where the “Syntax Highlighter for WP Editor” can help. With an enhanced source code editor you can see a code with syntax highlighting, and with line numbering, so you can easily read your code and detect any errors.
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An easy to use WordPress plugin that gives you the ability to add a “Scroll to Top” button to your website in a simple and elegant way. This button appears at the bottom-right of the website once the visitors scrolls down a page on your website. It appears only when visitors scroll down the webpage. As a result, your website visitors can easily scroll smoothly back to the very top of a page with one click of the button. This can be particularly handy for pages with a lot of text/content, or in cases wherever a browser’s scrollbar is just not good enough (or not present at all, like on tablets) to enable one-click, one-screen scrolling. This gives your website better navigation and also adds a more professional look to your website.
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An easy to use WordPress plugin that gives you the ability to add the preloader (animated loading screen indicator) to your website in a simple and elegant way.
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An easy to use and lightweight WordPress plugin that gives you the ability to easily insert custom scripts (HTML, JavaScript, and CSS) in the head or/and footer section of your website.
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It makes sense to do everything you can to protect your copyrighted content. While there is no way to completely stop people from stealing your images, you can make it harder. Disabling right-clicking is one method you can use to deter casual theft.
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Pop-ups windows are some of the most common UI elements that we can find in websites. Sometimes it’s useful to add a pop-up to your pages. You can use it, for example, to create a contact forms (sign-up boxes), photo galleries, or for areas of your website that you might need a link containing “more information”.
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Recently I migrated my personal website to Adobe Muse and hosted it on GitHub Pages. Here it is: arthurgareginyan.com. Everything looks good. I tried to preserve my existing URLs. But the process wasn’t perfect. So I created a custom 404 page.
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I have recently put together an Adobe Muse website hosted in GitHub Pages here: www.arthurgareginyan.com. GitHub Pages accepts static HTML and can’t execute languages like PHP or use a database. I love static websites. They are simple and fast. But they don’t have a back-end to create things such as contact form. So firstly I was just giving my email address on the website, which turned out to be bad idea. Then I googled and stumbled upon Formspree, and I fell in love.
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GitHub Pages is an incredibly simple, user-friendly solution for hosting a simple personal website. By default the address will be username.github.io. Below, I’ll explain how I set up my github.io user page with my own domain name arthurgareginyan.com that registered trough GoDaddy.com.
The WordPress download button is a special button which are linked to file in repository of your software at WordPress.org. In this article you will learn how to add a dark with gradient WordPress download active button to your website or blog, using just code (HTML, CSS & SVG data), without any image files. The design of button and WordPress icon will be generated by code.
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An easy to use WordPress plugin that gives you the ability to easily add the smart bar with social media follow buttons to any place (post, page, widget, sidebar, footer) of your WordPress website.
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The GitHub fork button is a special button which are linked to repository of your software at GitHub.com. In this article you will learn how to add a GitHub fork button to your website’s or blog’s post, using just code (HTML, CSS & SVG), without any images files. The design of button and GitHub icon will be generated by code.
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MIME stands for “Multipurpose Internet Mail Extensions. It’s a way of identifying files on the Internet according to their nature and format. For example, using the Content-type header value defined in a HTTP response, the browser can open the file with the proper extension/plugin. Or, if this is a screenshot of plugin which located on WordPress.org repository, then it must be opened in the tab of web browser rather than downloaded to computer. Next, I’ll show you how to set the correct MIME Type of a file using Subversion (SVN) from the command line.
Like most VCSs, Git has the ability to tag specific points in history as being important. Typically people use this functionality to mark release points (v0.1, v1.0 and so on). In this post, you’ll learn how to list the available tags, how to create new tags and how to rename or delete the tags.
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An easy to use and lightweight WordPress plugin that gives you the ability to easily add your Meta Tags to the head section of your website.
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Sometimes you may want to create a separate style sheet and/or JavaScript file for settings page of your plugin, versus inserting it into existing code of this page. But how load this script on only a plugin’s or theme’s settings page (on certain /wp-admin pages)?
To migrate an Event from the application Final Cut Pro X (hereinafter FCPX), from one Mac to another Mac, not enough simply to move this event at the same place on an another Mac, because so event do not appear in the library of FCPX.
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In different situations (for example, during the installation of Perl applications, or when I use apt-get install) I get the following warning message:
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_CTYPE = "UTF-8",
LANG = "ru_RU.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
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I am used CodeMirror 5 in different projects. Now I using it with WordPress plugin API and it’s working perfectly except that the editor is not loading all content until clicked. Nothing appears below line 26 until you click the mouse below that line. The content is there, but it is not visible. It just comes up as a large blank white space. If you click above it, it doesn’t appear, you need to click below it.
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The default upload file size for php (and, consequently, for WordPress) is 2 MB, which is a problem if you want to upload a files that’s bigger. Follow these steps if you get this message:
The uploaded file exceeds the upload_max_filesize directive in php.iniRead more...
The social media buttons lets you add icons of the popular social networks which are linked to your social media profiles. You will learn how to add a vertical and horizontal line or lines of social media buttons to your website’s post, sidebar or footer, using whatever icons you prefer.
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An easy to use WordPress plugin that gives you the ability to easily and safely add your custom styles (CSS code) to WordPress website’s <head> section, directly out of your WordPress Dashboard, without any need of an external editor.
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I just noticed that one of my articles on the website has a strange JavaScript code added to my raw code that I show in article.
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Today I upgraded the Subversion on my computer from 1.6 to 1.7 version. Subversion version 1.7 has a new repository structure and requires to upgrade all existing working copies.
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From version of Mac OS X — 10.7, the folder “Library”, in the Finder, by default is hidden from the user.
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Some time ago WordPress.org is changed the rules of the publication of a themes to their repository. And then, I have not been able to publish update of my theme, because of the following error:
REQUIRED: Found a Customizer setting that did not have a sanitization callback function. Every call to the add_setting() method needs to have a sanitization callback function passed.Read more...
An easy to use and lightweight WordPress plugin that lets you easily add RSS feed icon which connected to SpecificFeeds.com with the shortcode in any place of your website.
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Given time, the performance of any computer will tend to degrade – even Macs. In this post I’ll show you tweaks that I use on my MacBook White with Mac OS X 10.7 Lion.
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About using of JavaScript library CodeMirror together with CMS WordPress and its integration into WordPress projects (themes and plugins).
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How to, on a Linux machine, using the ClamAV, detect malicious code (trojans, viruses, malware & other malicious threats).
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To quickly and easily create a self-signed SSL certificate for Web servers Apache and Nginx I wrote a little script in “BASH”.
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How to find, remove and prevent the creating of the .DS_Store files and .AppleDouble directories on a networked drives.
How to full controlling the ASUS router with original firmware via a command line by the Telnet access protocol.
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How to fix the issue if, in the logs of the router, you see the message about a DoS attacks and then your ASUS router is down until you reboot it.
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How to, in the original firmware, on the router Asus RT-N12E/LX, enable the Telnet access protocol, even if the firmware is not supported this function.
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Whenever you try to modify a file that you have not touched in over two weeks, you’ll receive the following message:
The file [File Name] is locked because you haven’t made any changes to it recently.Read more...
How to, from the terminal, securely transfer data between a local host and a remote host or between two remote hosts.
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There are many formats of disk images which is not possible to mount with standard Linux tools. But, with “Iat” tool, we can convert it to ISO format and then mount it with mount command.
How to, in the terminal, using the find utility, find and optionally delete all zero bytes/size/length files and empty directories in the specified directory including subdirectories.
If you have a lot of media files (photo, music etc), then most likely you also have a lot of duplicate files. In this article I’ll show you how to find and remove duplicate files, from the terminal, by using fdupes utility.
How to, in the CMS WordPress, fix the error due to which is displayed the message
Briefly unavailable for scheduled maintenance. Check back in a minute.Read more...
I’ll show an example of how to configure a connection to a wireless network from the console of the Debian system by using Wi-Fi Adapter “ASUS USB-N10 Nano” (ID: 0b05:17ba, Driver: rtl8192cu).
By default the Raspberry Pi uses DHCP to configure its network interfaces, including, on the model B, the built-in ethernet port. In this post I’ll cover how you can set up your Raspberry Pi to automatically connect to your wireless network and obtain a static IP or configure WPA2 using wpa_supplicant. All you need is a WiFi dongle.
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How to fix the issue if you see the message about the host is unknown when attempting to ping a domain name.
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When attempting to connect using SSH, the connection may be automatically rejected with the following error:
Host key verification failedRead more...
The Raspberry Pi is a great single board computer. However I don’t always want to hook up the Raspberry Pi to some screen and keyboard when working with it. I like to do everything using SSH which is enabled out of the box if you are using the Raspbian distribution. So just hook up it to your router and start hacking. But what if now you don’t have router and only have the Mac?
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Navigation menu is an essential part of any blog or website. It helps visitors to easily get the required content the whole blog. I’ll show how to add the horizontal navigation double menu. In the left part which is Pages and in the right part is Labels (Category).
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When you have many images that you want to include in a blog post, it is important to place them compactly. This way, the reader won’t have to scroll down forever and ever to see your images. Here’s a simple solution to do that.
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Some time ago, for web-surfing, I used Google Chromium Web browser (open-source version of Chrome). Then I created the theme “White Knight”, now I want to share it.
An easy to use WordPress plugin that gives you the ability to easily and safely add your custome functions (PHP code) for execution in WordPress environment directly out of your WordPress Dashboard and without any need of an external editor.
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For quite some time I use my Linux machine as a file and backup server (Mac File Server and Time Machine Volume) for all Mac’s in my network which is accessible from the Finder in Mac OS X.
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You can create shortened commands by using aliases. Aliases are very convenient to use for frequently used commands.
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After purchasing a new Mac, we have to think about migrating projects of sites from iWeb from the old Mac to a new one. Everything, as always, simple.
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A safe solution to recursively replace spaces with underscores in file and directory names starting from the current directory.
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If you use ssh to connect to the remote host, one way to ensure the security of the connection is the use of public/private SSH key, because password is not passed across the network and the system is resistant to attacks by “brute force”.
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The junk gobbles up our disk space and drags down our Linux machine. From this article you will learn how to clean up junk files and thereby speed up your Linux machine by using the terminal app.
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In the version of Ubuntu 7.10 and above - framebuffer is turned off by default. To enable it we will conduct described below.
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Turn already unnecessary container under the hdd or external drive into an external optical disk drive.
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