Description:
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---
From manual page: https://php.net/language.types.string
---

It appears that since 7.3 a heredoc may never include the heredoc identifier if it is the first item on an indented line.

Before 7.3, the interpretation was as described in the docs: indentation means the identifier would be considered part of the enclosed text. Which made sense.

Test script:
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// In 7.2, this works, in 7.3+ it fails, misinterpreting the indented "SOMETHING" 
// on the 2nd line as closing the heredoc.
$string = <<<SOMETHING
   SOMETHING weird is going on.
SOMETHING;

Actual result:
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**unexpected 'is' (T_STRING)**