Over here will help:
(From the second page:
By default, PCRE treats the subject string as consisting of a single
"line" of characters (even if it actually contains several
newlines). The "start of line" metacharacter (^) matches only at the
start of the string, while the "end of line" metacharacter ($)
matches only at the end of the string, or before a terminating
newline (unless /D/ modifier is set). This is the same as Perl.
When this modifier is set, the "start of line" and "end of line"
constructs match immediately following or immediately before any
newline in the subject string, respectively, as well as at the very
start and end. This is equivalent to Perl's /m modifier. If there
are no "\n" characters in a subject string, or no occurrences of ^
or $ in a pattern, setting this modifier has no effect.
No, I'm not posting this angrily, but sometimes it's easier to answer a
question via cut and paste than writing up an answer yourself. =) I'm
--Joseph Guhlin - http://www.josephguhlin.com/
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