inline_delimiter(<?php)
reserved(goto) ident(a)operator(;)
predefined(echo) string<delimiter(')content(Foo)delimiter(')>operator(;)
 
label(a)operator(:)
predefined(echo) string<delimiter(')content(Bar)delimiter(')>operator(;)
inline_delimiter(?>)

inline_delimiter(<?php)

local_variable($headers) operator(=) predefined(Array)operator(()string<delimiter(')content(subject)delimiter(')>operator(,) string<delimiter(')content(bcc)delimiter(')>operator(,) string<delimiter(')content(to)delimiter(')>operator(,) string<delimiter(')content(cc)delimiter(')>operator(,) string<delimiter(')content(date)delimiter(')>operator(,) string<delimiter(')content(sender)delimiter(')>operator(\))operator(;)
local_variable($position) operator(=) integer(0)operator(;)

label(hIterator)operator(:) operator({)

    local_variable($c) operator(=) integer(0)operator(;)
    predefined(echo) local_variable($headers)operator([)local_variable($position)operator(]) operator(.) pre_constant(PHP_EOL)operator(;)

    label(cIterator)operator(:) operator({)
        predefined(echo) string<delimiter(')content( )delimiter(')> operator(.) local_variable($headers)operator([)local_variable($position)operator(])operator([)local_variable($c)operator(]) operator(.) pre_constant(PHP_EOL)operator(;)

        reserved(if)operator(()operator(!)predefined(isset)operator(()local_variable($headers)operator([)local_variable($position)operator(])operator([)operator(++)local_variable($c)operator(])operator(\))operator(\)) operator({)
            reserved(goto) ident(cIteratorExit)operator(;)
        operator(})
        reserved(goto) ident(cIterator)operator(;)
    operator(})

    label(cIteratorExit)operator(:) operator({)
        reserved(if)operator(()predefined(isset)operator(()local_variable($headers)operator([)operator(++)local_variable($position)operator(])operator(\))operator(\)) operator({)
            reserved(goto) ident(hIterator)operator(;)
        operator(})
    operator(})
operator(})
inline_delimiter(?>)