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CodePen
CodePen
An online code editor, learning environment, and community for front-end web development using HTML, CSS and JavaScript code snippets, projects, and web applications.
·codepen.io·
CodePen
JSFiddle - Code Playground
JSFiddle - Code Playground
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
·jsfiddle.net·
JSFiddle - Code Playground
(The only proper) PDO tutorial
(The only proper) PDO tutorial
There are many tutorials on PDO already, but unfortunately, most of them fail to explain the real benefits of PDO, or even promote rather bad practices. The only two exceptions are [phptherightway.com](http://www.phptherightway.com/#pdo_extension) and [hashphp.org](http://wiki.hashphp.org/PDO_Tutorial_for_MySQL_Developers), but they miss a lot of important information. As a result, half of PDO's features remain in obscurity and are almost never used by PHP developers, who, as a result, are constantly trying to reinvent the wheel which *already exists in PDO.*
·phpdelusions.net·
(The only proper) PDO tutorial
UptimeRobot: Free Website Monitoring Service
UptimeRobot: Free Website Monitoring Service
Start monitoring in 30 seconds. Use advanced SSL, keyword and cron monitoring. Get notified by email, SMS, Slack and more. Get 50 monitors for FREE!
·uptimerobot.com·
UptimeRobot: Free Website Monitoring Service
MDN Web Docs
MDN Web Docs
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
·developer.mozilla.org·
MDN Web Docs
Hot Questions - Stack Exchange
Hot Questions - Stack Exchange
We make Stack Overflow and 170+ other community-powered Q&A sites.
·stackexchange.com·
Hot Questions - Stack Exchange