Vink: 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.
Advarsel |
These regular expression functions are not binary-safe. The PCRE functions are. |
Regular expressions are used for complex string manipulation. PHP uses the POSIX extended regular expressions as defined by POSIX 1003.2. For a full description of POSIX regular expressions see the regex man pages included in the regex directory in the PHP distribution. It's in manpage format, so you'll want to do something along the lines of man /usr/local/src/regex/regex.7 in order to read it.
Ingen eksterne libraries er nødvendige for at kompilere denne udvidelse.
Advarsel |
Do not change the TYPE unless you know what you are doing. |
To enable regexp support configure PHP
--with-regex[=TYPE]
. TYPE can be one of
system, apache, php. The default is to use php.
Windows versionen af PHP har indbygget support for denne udvidelse. Du behøver ikke indsætte ekstra udvidelser for at bruge disse funktioner.
Denne udvidelse har intet konfigurations-direktiv defineret i php.ini.
Denne udvidelse har ingen ressourcetyper defineret.
Denne udvidelse har ingen konstanter.
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().