--TEST--
Flexible heredoc syntax complex test 1: interpolated nested heredocs
with different delimiter names
--FILE--
<?php
$a = 'b';
${"b\nb\n d"} = 'b';
var_dump(<<<DOC1
a
${<<<DOC2
b
${<<<DOC3
a
DOC3}
d
DOC2
}
c
DOC1);
?>
--EXPECT--
string(5) "a
b
c"