Syntax Highlighting with nano – nanorc for php2

# PHP Syntax Highlighting
syntax "php2" "\.php[2345s~]?$"
color brightblue "(.*)\("
color blue "\$[a-zA-Z_0-9$]*|[=!<>]"
color green "(var|class|function|echo|case|break|default|exit|switch|if|else|elseif|@|while)\s"
color green "[.,{}();]"
color red "('.*')|(\".*\")"
color brightyellow "(#.*|//.*)$"
color brightyellow start="/\*" end="\*/"
color brightblue "(<\?(php)?|\?>)"
color white start="\?>" end="<\?(php)?"