Writing a WordPress Plugin from Scratch (Kostas Karolemeas)

Steps required to develop a plugin for registering shortcodes that integrate with another system.

Transcript

1. Writing a Wordpress
   plugin from scratch
   Kostas Karolemeas
   CTO, pinobo.com
   

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2. Why?
    Sometimes plugins by others suck… because:
    They are not actively developed and have bugs
    They have dependencies’ conflicts
    They do not do the job
    Sometimes you keep repeating the same code in most of
   your project.
    Sometimes you have some great functionality that you
   want to share with others or even make money out of it.
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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3. Plugin Files
   (1/3)
   https://codex.wordpress.org/Writing_a_Plugin
   • Standard plugin information
   • plugin information header
   • License
   • Most Plugins use the GPL2 license used by
   WordPress or a license compatible with the GPL2
   • Actual Code
   my-plugin.php
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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4. Plugin Files
   (2/3)
   http://www.gnu.org/licenses/gpl-2.0.txt
   • GPL2 License
   • Required for Wordpress Plugin Repository
   gpl-2.0.txt
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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5. Plugin Files
   (3/3)
   http://wordpress.org/plugins/about/readme.txt
   • Plugin info
   • Description
   • Installation
   • FAQ
   • Screenshots
   • Changelog, etc
   readme.txt
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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6. Install Plugin
    Zip the 3 files into my-plugin.zip
    Upload file to install
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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7. Hands-on
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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8. Hands-on
   Writing a wordpress plugin from scratch Kostas Karolemeas
   

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