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Sudowned
Asked: 2013-02-06 00:42:02 +0800 CST

Apache2 ignoring some rewrites

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I'm having the weirdest problem with a previous developer's URL rewrites after moving this custom CMS to a new server. Observe this snippet of the .htaccess file:

RewriteEngine On

# If the URL doesn't end in a slash, redirect them to the equivalent that does (for canonical/SEO purporses)
RewriteCond %{REQUEST_URI} !.*/$
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteRule ^(health|nutrition|fitness|directory|coupons|download|kids|faq|signup|menu|snp|myaccount|myschool|printmenu)(.*)$ /$1$2/ [R=301,L,QSA,NS]

# Health Pages
RewriteRule ^health/$ health.php [L]
RewriteRule ^health/([^/]+)/$ health.php?title=$1 [L]
RewriteRule ^health/([^/]+)/([^/]+)/$ health_article_details.php?cat=$1&title=$2 [L]

The first part of the Health rewrite:

# Health Pages
RewriteRule ^health/$ health.php [L]

works as expected, but:

RewriteRule ^health/([^/]+)/$ health.php?title=$1 [L]
RewriteRule ^health/([^/]+)/([^/]+)/$ health_article_details.php?cat=$1&title=$2 [L]

don't forward the rest of the URL segment as an argument. I threw a print_r($_REQUEST); in at the start of health.php and with a URL of http://www.foo.com/health/a/b/, I get this output:

Array ()

Why is this happening instead of:

Array ( [title] => a )

Any suggestions would be very appreciated!

apache-2.2

2 Answers

  1. You put the print_r($_REQUEST); in the wrong file. The rewrite that matches that URL gets sent to health_article_details.php.

    For that URL you should get:

    Array ( [cat] => a, [title] => b )

    Why you got anything at all I don't know. Possibly health_article_details.php include()s health.php.

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  2. Oddly enough, the rewrites ought never have worked. On advice given by someone in freenode's #httpd channel, I changed the rewrites like so:

    # Health Pages
RewriteRule ^health/$ health.php [L,QSA]
RewriteRule ^health/([^/]+)/$ health.php?title=$1 [L,QSA]
RewriteRule ^health/([^/]+)/([^/]+)/$ health_article_details.php?cat=$1&title=$2 [L,QSA]

    Without QSA no query strings were being forwarded. I have no idea why this worked in its original context, but as of this moment it no longer matters.

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