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How to rewrite URL according to a condition? – Apache

I was trying to get URLs edited in Apache as described below however I have not been successful.

If the URI starts with letter ‘a’ and third digit is not ‘7’ with total digits are 6
then url http://example.com/a/123456/ should be rewritten to http://example.com/sixdigits.php

If the URI starts with letter ‘b’ and third digit is not ‘7’ with total digits are 4 then url http://example.com/b/1234/ should be rewritten to http://example.com/fourdigits.php

Here is what I have tried with the .htaccess file.

RewriteRule ^a/[0-9]+/$  sixdigits.php 
RewriteRule ^b/[0-9]+/$  fourdigits.php
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3

Answers


  1. 0

    Could you please try following, written and tested with shown samples. Please make sure you clear your browser cache before testing your URLs.

    RewriteEngine ON
RewriteRule ^a/([0-9]{2})([012345689])([0-9]{3})/?$ sixdigits.php [NC,L]
RewriteRule ^b/([0-9]{2})([012345689])([0-9])/?$  fourdigits.php [NC,L]
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  2. 0

    You can use:

    • [^7] to indicate NOT 7
    • d to indicate [0-9]
    • {2} etc. to indicate two of the preceding character

    Consequently:

    If the URI starts with letter a and third digit is not 7 with
    total digits are 6 then url http://example.com/a/123456/ should be
    rewritten to http://example.com/sixdigits.php

    RewriteRule ^a/d{2}[^7]d{3}/?$  sixdigits.php

    If the URI starts with letter b and third digit is not 7 with
    total digits are 4 then url http://example.com/a/1234/ should be
    rewritten to http://example.com/fourdigits.php

    RewriteRule ^b/d{2}[^7]d/?$  fourdigits.php
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  3. 0

    Another regex variant:

    RewriteEngine On

RewriteRule ^a/d{2}[^7D]d{3}/?$ sixdigits.php [L]

RewriteRule ^b/d{2}[^7D]d/?$ fourdigits.php [L]
    • [^7D] will match any digit except 7
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