What happens when there is more than one rewritecond?
When more than one RewriteCond is specified, they must all match for the RewriteRule to apply. For example, to deny requests that contain the word “hack” in their query string, unless they also contain a cookie that contains the word “go”, you could use:
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What are the backreferences of a rewritecond?
RewriteCond backreferences: These are backreferences of the form %N (0 <= N <= 9). %1 to %9 provide access to the grouped (again, in parentheses) parts of the pattern, from the last matching RewriteCond in the current set of conditions. %0 provides access to the entire string that matches that pattern.
How to rewrite parameters in Apache rewritecond?
[R,L] as @TrueBlue suggested. This technique (prefixing TestString) can also be used to pass parameters already found to the next RewriteCond. This allows us to simplify the three rules to one.
When to use the rewritecond and rewriterule directives?
The RewriteCond directive defines a rule condition. One or more RewriteConds can precede a RewriteRule directive. The following rule is only used if the current state of the URI matches its pattern and these conditions are met. TestString is a string that can contain the following expanded constructs in addition to plain text:
How are matches used in Apache rewritecond s?
Matches on regular expressions contained in RewriteCond s can be used as part of Substitution in RewriteRule using the variables %1, %2, etc. For example, this will direct the request to a different directory based on the hostname used to access the site:
How to define non-capturing groups in JavaScript?
It turns out that you can define non-capturing groups that are not included in the result! Use the (? 🙂) syntax to match non-capturing groups in your strings.
Why are catches available in the rewrite pattern?
Catches in RewriteRule patterns are available (counterintuitively) for all preceding RewriteCond directives, because the RewriteRule expression is evaluated before the individual conditions.