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Note
titleCorrect, but discouraged
Code Block
languagephp

$c = 2*pi()*$r; // Calculate the circumference

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These comments should only be used to identify TODO comments.

Warning
titleIncorrect
Code Block
languagephp
# Calculate the circumference
$c = 2*pi()*$r;
Tip
titleCorrect
Code Block
languagephp
titleA TODO Comment
firstline1
linenumberstrue
<?php
class MyClass {
    #
    # TODO: Finish this class.
    #
}
?>