same connection or request, which request happens on which connection.
A <code>%L</code> format string is also available in
<code class="module"><a href="../mod/mod_log_config.html">mod_log_config</a></code>, to allow to correlate access log entries
- with error log lines.</p>
+ with error log lines. If <code class="module"><a href="../mod/mod_unique_id.html">mod_unique_id</a></code> is loaded, its
+ unique id will be used as log ID for requests.</p>
<div class="example"><h3>Example (somewhat similar to default format)</h3><p><code>
ErrorLogFormat "[%{u}t] [%-m:%l] [pid %P] %7F: %E: [client\ %a]
($req), response headers ($resp) or environment ($env) in your
expression.</p>
+ <p>Apart from <code>=</code>, <code>If</code> can use the <code>IN</code>
+ operator to compare if the expression is in a given range:</p>
+
+ <div class="example"><p><code>
+ <If %{REQUEST_METHOD} IN GET,HEAD,OPTIONS>
+ </code></p></div>
+
+
<h3>See also</h3>
<ul>
<li><a href="../sections.html">How <Directory>, <Location>,
<p>You may compare the value of any variable in the request headers
($req), response headers ($resp) or environment ($env) in your
expression.</p>
+
+ <p>Apart from <code>=</code>, <code>If</code> can use the <code>IN</code>
+ operator to compare if the expression is in a given range:</p>
+
+ <example>
+ <If %{REQUEST_METHOD} IN GET,HEAD,OPTIONS>
+ </example>
+
</usage>
<seealso><a href="../sections.html">How <Directory>, <Location>,