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As I mention in the title, i am not sure what is <<<XML ... XML. It likes some open/close tag in HTML tags. enter image description here And i wonder how many type of these tags?

Do we have <<<HTML ...HTML?

Thanks in advance!

huyleuit
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  • I believe this is heredoc notation to make a multiline string literal, but it's hard to tell since I can't see the end of the string. It should end in EOF. See the manual: https://www.php.net/manual/en/language.types.string.php – Chris Strickland Apr 26 '22 at 12:41
  • The `XML` after `<<<` is an arbitrary character sequence. You can use `<< – Selim Acar Apr 26 '22 at 13:20
  • Thanks ChrisStrickland, Selim. I got it – huyleuit Apr 27 '22 at 10:43

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