Differences From Perl
Introduction
PCRE Patterns
PHP Manual
Pattern Syntax
Spis treści
Introduction
Meta-characters
Backslash
Unicode character properties
Circumflex and dollar
Full stop
Square brackets
Vertical bar
Internal option setting
Subpatterns
Repetition
Back references
Assertions
Once-only subpatterns
Conditional subpatterns
Comments
Recursive patterns
Performances
Differences From Perl
Introduction
PCRE Patterns
PHP Manual