PHP: How to Validate an SMS from SignalWire Webhook
Submitted by admin on Sat, 08/03/2024 - 10:25am
I ran into this problem recently, but was unable to find an answer. There is very little (essentially non-existant) documentation from SignalWire on how to validate / verify that an SMS coming to your webhook was really sent by SignalWire, especially in PHP which seems to be the forgotten stepchild of SignalWire.
I finally found the answer, so I wanted to share it here for anyone else with the same problem.
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