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copied!<p>Here you go: if eregi() fails to match, the $outdata assignment will never happen as the if block will not be executed. If it matches, but there's nothing between the tags, $outdata will be assigned an empty string. In both cases, !$outdata will be true, so we can fallback to a second match on the title tag instead.</p> <pre><code>if(eregi("<linkto>(.*?)</linkto>", $string, $link_match)) { $outdata = $link_match[1]; } if(!$outdata && eregi("<title>(.*?)</title>", $string, $title_match)) { $outdata = $title_match[1]; } </code></pre> <p>I also changed the (.*) in the match to (.*?). This means, don't be greedy. In the (.*) form, if you had $string set to</p> <pre><code><title>Page Title</title> ... ... <iframe><title>A second title tag!</title></iframe> </code></pre> <p>The regex would match</p> <pre><code>Page Title</title> ... ... <iframe><title>A second title tag! </code></pre> <p>Because it tries to match as much as possible, as long as the text is between any and any other !. In the (.*?) form, the match does what you'd expect - it matches</p> <pre><code>Page Title </code></pre> <p>And stops as soon as it is able.</p> <p>...</p> <p>As an aside, this thing is an interesting scheme, but why do you need it? Pages can link to other pages and pass parameters via the query string:</p> <pre><code><a href="somescript.php?prevpage=Foo">...</a> </code></pre> <p>Then somescript.php can access the prevpage parameter via the $_GET['prevpage'] superglobal variable.</p> <p>Would that solve your problem?</p>

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