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Re: Comments legal? For loop legal? [message #170524 is a reply to message #170521]

Fri, 05 November 2010 22:28

Brian Smither
Messages: 5
Registered: October 2010

Karma:

Junior Member

Brian Smither <ignore(at)ignore(dot)com> wrote in
news:Xns9E27A0232C8FFbhsmithergmailcom(at)216(dot)151(dot)153(dot)39:

> // Digital Product : BEGIN
>
> Would a colon ever constitute a beginning or ending of a script block?

This is my theory...

There is such a concept as script blocks and control blocks.

Knowing that single line comments terminate at the end of the line OR at
the end of the script block, whichever comes first. (A lot of articles
around the web neglect to mention that part.) So...

<?php
echo "Line 1";
// echo "Line 2"; ?>
die("Last Line");
<?php
echo "Line 3"; ?>

....will NOT kill the script as anticipated.

There is such a concept as an Alternative Control Structure (ACS)
syntax. Example:

if(expression):
elseif:
else:
endif;

The theory...

The ACS is acted upon in single-line comments.

Example:

if(expression):
// COMMENT : endif
else:
end; // maybe 'end' by itself is legal?

Possible result: Unexpected T_ELSE error.

NOTES:
1. Intentionally mixing structure styles can lead to unpredicable
results.
2. Inadvertently mixing structure styles, even innocuous characters in
comments, can lead to unpredicable results.

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[Message index]

		Comments legal? For loop legal? By: Brian Smither on Fri, 05 November 2010 21:44
		Re: Comments legal? For loop legal? By: Jerry Stuckle on Fri, 05 November 2010 21:56
		Re: Comments legal? For loop legal? By: Denis McMahon on Fri, 05 November 2010 22:02
		Re: Comments legal? For loop legal? By: Brian Smither on Fri, 05 November 2010 22:28
		Re: Comments legal? For loop legal? By: Jerry Stuckle on Fri, 05 November 2010 22:55
		Re: Comments legal? For loop legal? By: sheldonlg on Sat, 06 November 2010 16:36
		Re: Comments legal? For loop legal? By: Magno on Sat, 06 November 2010 16:42

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