I have been using PhpStorm and i personally recommend this is the best IDE for developing amazing websites and projects at ease. Easy Customization and many themes. Though it comes for a free 30 days trial. Recently a new version of JetBrains PhpStorm 2016.3 is released.
Lightning-smart PHP IDE for multi platforms Windows/Mac Os/Linux.
Intelligent coding assistance
Smart PHP Code Editor
The IDE provides smart code completion, syntax highlighting, extended code formatting configuration, on-the-fly error checking, code folding, supports language mixtures and more. Automated refactorings that treat your code with care, helping to make global project settings easily and safely.
Code Quality Analysis
Hundreds of code inspections verify your code as you type and inspect the whole project for possible errors or code smells. Quick-fixes for most inspections make it easy to fix or improve the code instantly. Alt+Enter shows appropriate options for each inspection.
Easy Code Navigation & Search
PhpStorm helps you get around your code more efficiently and save time when working with large projects. Jump to a method, function or variable definition in just one click, or search for its usages.
Major frameworks supported
PhpStorm is perfect for working with Symfony, Drupal, WordPress, Zend Framework, Laravel, Magento, Joomla!, CakePHP, Yii, and other frameworks.
All PHP tools
The editor actually ‘gets’ your code and deeply understands its structure, supporting all PHP language features for modern and legacy projects. It provides the best code completion, refactorings, on-the-fly error prevention, and more.
Front-end technologies included
Feel free to give your views and if you have any other good software to suggest… just drop it in the comments and subscribe/follow blog to know more.