Regex Cheat Sheet. PHP PCRE Cheat Sheet Functions pregmatch(pattern, subject, submatches). Replacement as PHP code S Extra analysis of pattern U Pattern is ungreedy. Using Regular Expression, searching a pattern in the text becomes easy. The search done with regular expression is called potential search. Regular Expression is represented in-between 2 forward slash ( '/' ) character. Table of Contents. Literal Pattern. Literal pattern is.

PHP Cheat Sheet (V2) The PHP cheat sheet is a one-page reference sheet, listing date format arguments, regular expression syntax and common functions. This website contains a 2-page light and lean PHP cheatsheet and an 8-page comprehensive PHP cheat sheet for committed PHP developers. Php 4 Reference Card. PHP Cheat Sheet. Test PHP regular expressions live in your browser and generate sample code for pregmatch, pregmatchall, pregreplace, preggrep, and pregsplit! — A Live Regular Expression Tester for PHP. Cheat Sheet abc A single character of: a, b or c ^abc Any single character except: a, b, or c a-z.

[abc] A single character: a, b or c
[^abc] Any single character but a, b, or c
[a-z] Any single character in the range a-z
[a-zA-Z] Any single character in the range a-z or A-Z
^ Start of line
$ End of line
A Start of string
z End of string
. Any single character
s Any whitespace character
S Any non-whitespace character
d Any digit
D Any non-digit
w Any word character (letter, number, underscore)
W Any non-word character
b Any word boundary character
(...) Capture everything enclosed
(a|b) a or b
a? Zero or one of a
a* Zero or more of a
a+ One or more of a
a{3} Exactly 3 of a
a{3,} 3 or more of a
a{3,6} Between 3 and 6 of a

Python Regex Cheat Sheet Pdf

Powershell Regular Expression Cheat Sheet

options: i case insensitive m make dot match newlines x ignore whitespace in regex o perform #{...} substitutions only once