Hi good afternoon, I am in computer applications programmer with expertise in PHP, I would like to help you in your project, and have integrated with php scripts before, so I think it should not be a problem.
Twilio also has its own documentation, and an online community that can help if we nnos problem, it would take not present problems Scripts, but seeing him I determine the number of hours.
Thanks for reading my proposal, I hope to help you, if tien questions or problems we can talk on the Inbox.
greetings