diff --git a/3rd-Party-Ports.md b/3rd-Party-Ports.md
index ebfed64..596d8a9 100644
--- a/3rd-Party-Ports.md
+++ b/3rd-Party-Ports.md
@@ -58,6 +58,10 @@ A CLI utility that will automatically detect all Chromecasts on the LAN, keep tr
 
 A CLI utility written in JS that will automatically detect all Chromecasts on the LAN, keep track of what's playing, and automatically skip sponsors using the SponsorBlock API inspired by CastBlock but built from the ground up for high performance and low cpu and memory usage.
 
+[Castblock PHP](https://github.com/willemstuursma/castblock-php) by [@willemstuursma](https://github.com/willemstuursma)
+
+Similar to the other utilities listed above, but written in PHP. Inspired by CastBlock but written from scratch to avoid some of its pitfalls.
+
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 #### Safari (macOS):