mod_rewrite Cheat Sheet by DaveChild

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

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