PHP Doku:: Alternation - regexp.reference.alternation.html

Verlauf / Chronik / History: (1) anzeigen

Sie sind hier:
Doku-StartseitePHP-HandbuchFunktionsreferenzTextverarbeitungReguläre Ausdrücke (Perl-kompatibel)PCRE-SuchmusterPattern SyntaxAlternation

Ein Service von Reinhard Neidl - Webprogrammierung.

Pattern Syntax

<<Character classes

Internal option setting>>

Alternation

Vertical bar characters are used to separate alternative patterns. For example, the pattern gilbert|sullivan matches either "gilbert" or "sullivan". Any number of alternatives may appear, and an empty alternative is permitted (matching the empty string). The matching process tries each alternative in turn, from left to right, and the first one that succeeds is used. If the alternatives are within a subpattern (defined below), "succeeds" means matching the rest of the main pattern as well as the alternative in the subpattern.


Keine BenutzerBeiträge.
- Beiträge aktualisieren...



PHP Powered Diese Seite bei php.net
The PHP manual text and comments are covered by the Creative Commons Attribution 3.0 License © the PHP Documentation Group - Impressum - mail("TO:Reinhard Neidl",...)