mod_rewrite cheat sheet

Posted by bput4all on October 17, 2012 · 26 Comments 

mod_rewrite Tutorials

http:/­/ht­tpd.ap­ach­e.o­rg/­doc­s/c­urr­ent­/re­write/

http:/­/ww­w.a­dde­dby­tes.co­m/f­or-­beg­inn­ers­/ur­l-r­ewr­iti­ng-­for­-be­gin­ners/

http:/­/ne­t.t­uts­plu­s.c­om/­tut­ori­als­/ot­her­/a-­dee­per­-lo­ok-­at-­mod­_re­wri­te-­for­-ap­ache/

mod_rewrite RewriteRule Flags

C

Chained with next rule

CO=cookie

Set specified cookie

E=var:­value

Set enviro­nmental variable “var” to “value”

F

Forbidden (403 header)

G

Gone – no longer exists

H=handler

Set handler

L

Last – stop processing rules

N

Next – continue processing

NC

Case insens­itive

NE

Do not escape output

NS

Ignore if subrequest

P

Proxy

PT

Pass through

R[=code]

Redirect to new URL, with optional code (see below)

QSA

Append query string

S=x

Skip next x rules

T=mime­-type

Set mime type

mod_rewrite RewriteCond Flags

NC

Case insens­itive

OR

Combine with next rule using ‘OR’ instead of the default of ‘AND’

Redirection Header Codes

301

Moved perman­ently

302

Moved tempor­arily (default)

mod_rewrite Directives

Rewrit­eEngine

Rewrit­eOp­tions

RewriteLog

Rewrit­eLo­gLevel

Rewrit­eLock

RewriteMap

Rewrit­eBase

Rewrit­eCond

Rewrit­eRule

Regular Expressions Syntax

^

Start of string

$

End of string

.

Any single character

(a|b)

a or b

(…)

Group section

[abc]

In range (a, b or c)

[^abc]

Not in range

\s

White space

a?

Zero or one of a

a*

Zero or more of a

a*?

Zero or more, ungreedy

a+

One or more of a

a+?

One or more, ungreedy

a{3}

Exactly 3 of a

a{3,}

3 or more of a

a{,6}

Up to 6 of a

a{3,6}

3 to 6 of a

a{3,6}?

3 to 6 of a, ungreedy

\

Escape character

[:punct:]

Any punctu­ation symbol

[:space:]

Any space character

[:blank:]

Space or tab

There’s an excellent regular expression tester at: http:/­/re­gex­pal.com/

mod_rewrite Server Variables: HTTP Headers

%{HTTP­_US­ER_­AGENT}

%{HTTP­_RE­FERER}

%{HTTP­_CO­OKIE}

%{HTTP­_FO­RWA­RDED}

%{HTTP­_HOST}

%{HTTP­_PR­OXY­_CO­NNE­CTION}

%{HTTP­_AC­CEPT}

mod_rewrite Server Variables: Server Internals

%{DOCU­MEN­T_ROOT}

%{SERV­ER_­ADMIN}

%{SERV­ER_­NAME}

%{SERV­ER_­ADDR}

%{SERV­ER_­PORT}

%{SERV­ER_­PRO­TOCOL}

%{SERV­ER_­SOF­TWARE}

mod_rewrite Sample Rule: Site Moved

# Site moved perman­ently

Rewrit­eCond %{HTTP­_HOST} ^www.d­oma­in.com$ [NC]

Rewrit­eRule ^(.*)$ http:/­/ww­w.d­oma­in2.com/$1 [R=301,L]

Rewrites domain.com to domain­2.com

mod_rewrite Sample Rule: Temporary Page Move

# Page has moved tempor­arily

Rewrit­eRule ^page.h­tml$ new_pa­ge.html [R,NC,L]

Rewrites domain.co­m/p­age.html to domain.co­m/n­ew_­pag­e.html

mod_rewrite Sample Rule: Nice URLs

# Nice URLs (no query string)

Rewrit­eRule ^([A-Z­a-z­0-9­-]+)/?$ catego­rie­s.p­hp?­name=$1 [L]

Rewrites domain.co­m/c­ate­gor­y-n­ame-1/ to domain.co­m/c­ate­gor­ies.ph­p?n­ame­=ca­teg­ory­-name-1

mod_rewrite Server Variables: Special

%{API_­VER­SION}

%{THE_­REQ­UEST}

%{REQU­EST­_URI}

%{REQU­EST­_FI­LENAME}

%{IS_S­UBREQ}

%{HTTPS}

mod_rewrite Server Variables: Request

%{REMO­TE_­ADDR}

%{REMO­TE_­HOST}

%{REMO­TE_­PORT}

%{REMO­TE_­USER}

%{REMO­TE_­IDENT}

%{REQU­EST­_ME­THOD}

%{SCRI­PT_­FIL­ENAME}

%{PATH­_INFO}

%{QUER­Y_S­TRING}

%{AUTH­_TYPE}

mod_rewrite Server Variables: Time

%{TIME­_YEAR}

%{TIME­_MON}

%{TIME­_DAY}

%{TIME­_HOUR}

%{TIME­_MIN}

%{TIME­_SEC}

%{TIME­_WDAY}

%{TIME}

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