NetBeans vs Eclipse

NetBeans is a free, GPL-licensed IDE. It can run on any computer with a Java virtual machine. If a computer has a Java virtual machine (JVM), Netbeans can run on it. Netbeans can, therefore, run on a variety of operating systems such as Windows, *nix, and Mac OS. Being open source means that developers can contribute changes to the code to have the IDE better serve them.

Has built-in support for the most popular revision control systems

Supports synchronization with projects stored remotely through FTP or SFTP.

You can run Linux terminal inside the IDE.

Supports Symfony1, Symfony2,Yii2 & Zend frameworks.

There's a built-in local history that lets you compare code changes and revert to a specific revision. Helpful when source code file accidentally overwritten.

PHPUnit is a testing framework. You can create test classes, run and see the code coverage directly from IDE interface.

Git commits/local diff comparison is best

NetBeans can be extended beyond the basic tool that you get out of the box through community made custom plugins.

The most used composer commands can be done directly from IDE.

Netbeans not only debugs your code, and points out errors but also gives you hints on which sections of your code could be further optimized.

Supports Smarty Template Engine right out of the box.

NetBeans provides code completion and documentation for all Twig elements.

Supports documentation generation through ApiGen and PHPDoc.

Supports static code analysis with phpstan

ApiGen allows automatically generating documentation from specifically formatted comments. It's easy to use, supports traits, allows fuzzy searching for classes and highlighting docblocks using Markdown.

Eclipse is an open source project and free to use.

Eclipse has a large and active community, which has resulted in a wide variety of plugins.

Eclipse uses a custom compiler (which can also be used outside of Eclipse), which is often faster than the normal Java Compiler, especially for incremental compilation.

It's interface is super easy to use, after adding required package for your task everything just works.

The concept of perspectives is outstanding. It puts right tools at your fingertips, keeping the tools you currently don't need out from the workbench. For example, in VCS perspective it's all about versions and branches. In debug perspective it's all about state.
In java ee project it can show http endpoints in a very accessible manner.

Thanks to the large variety of plugins and various configuration options, Eclipse is very customizable.

Shows threads, concurrency locks, and conditional breakpoints.

Because Eclipse is based on SWT, it uses the native font rendering and thus looks better than other IDEs on some Linux systems, where the Java font rendering is not optimal.

Fast, suitable for big projects, customizable, supports UML, many programming languages, plugins, and widgets vs NetBeans and JDeveloper. Support for Workspaces and Perspectives. Long term tested, free of charge, vs IntelliJ IDEA.