Netbeans is a good IDE for PHP. Many thanks to Junichi, the maintainer and developer of the PHP module for many years.<p>I don't know of any decent open-source alternative for PHP. Last time I checked, at spring 2024 IIRC, the various LSP for PHP were either incomplete or premium-limited. IMO, a decent IDE should at least have completion and navigation features (Go to declaration, Find usage, Show documentation, Show arguments, ...).<p>On the proprietary side, JetBrains is a well-known alternative. I tried it some times ago and wasn't convinced. Its refactoring features are much better than Netbeans', but I had recurring LSP error messages and a few small annoyances.