Send SMS using URL hyperlink (from Asterisk/FreePBX)

Active Raspberry Pi with PBX/Asterisk and USB Dongle. All works fine, i can call, send sms by softphone etc. All dial plans are working for last 2 years with no problem.

I have installed simple sms sending script on my website, but I need to use specific index.html site to send SMS message - I don't know how to use a regular hyperlink

PLEASE CHECK INDEX.PHP (sending script)
PLEASE CHECK SCREENSHOTS

TO DO:
url/hyperlink to send automatic sms from website

http://mywebsite.com/sms.php?to=+44778244518&from=+4478787979972&body=hello
or
<a href="sms:+0123456789?&body=Hello test sms">Send an SMS to +0123456789 with Messages</a>
or
your solution