Text generator for three UPPER CASE letters - no more, no less. Php Form Generator Class

Text generator for three UPPER CASE letters - no more, no less.Php Form Generator ClassHi Guys and Gals,I am preparing for a radio operator's course, and one of the problems faced is determining what class of license a person has just by recognizing the suffixes to the call signs; e.G an operator having a call sign such as VK3ABC is an Advanced operator, an operator having a call sign such as VK3MAB is a Standard operator. Because of the number of operators the first letter of the suffix covers the whole spectrum from A to Z, but leaves out O and Q. For the purpose of setting up the text generator this is unimportant, but it would be nice to have those left out.Years ago, when I was younger and doing a lot of programming, this would have been simple; but today, on the wrong side of 70, it is beyond me. I managed to learn the phonetic alphabet years ago using Victorian Number Plates where the letters come first, but up here in Queensland the numbers come first which means too much time spent looking at number plates to get the letters and driving concentration drops off and performance becomes hazardous.Can someone spend a few minutes to help me? I would greatly appreciate it.Derek O'Brien73-question by Derek O'BrienKeywords: