注: PHP also supports regular expressions using a Perl-compatible syntax using the PCRE functions. Those functions support non-greedy matching, assertions, conditional subpatterns, and a number of other features not supported by the POSIX-extended regular expression syntax.
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Regular expressions are used for complex string
manipulation in PHP. The functions that support regular
expressions are:
To enable regexp support configure PHP --with-regex[=TYPE]. TYPE can be one of
system, apache, php. The default is to use php.
注: Do not change the TYPE unless you know what you are doing.
The windows version of PHP
has built in support for this extension. You do not
need to load any additional extension in order to use
these functions.
For regular expressions in Perl-compatible syntax
have a look at the PCRE
functions. The simpler shell style wildcard pattern
matching is provided by
fnmatch().