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POPhp removing special characters from log using sed or preg_replace
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copied!<p>I'm using this AJAX Logfile Tailer & Viewer: <a href="http://commavee.com/2007/04/13/ajax-logfile-tailer-viewer/" rel="nofollow">http://commavee.com/2007/04/13/ajax-logfile-tailer-viewer/</a> It works well but on the page where the log is being displayed it isn't filtering any special characters so it looks messy. I'm trying to modify the logtail.php file to clean out the special characters but can't quite get it working.</p> <p>Here is the original logtail.php file:</p> <pre><code><? // logtail.php $cmd = "tail -50 /home/user/logfile.log"; exec("$cmd 2>&1", $output); foreach($output as $outputline) { echo ("$outputline\n"); } ?> </code></pre> <p>Here is my modified logtail.php file in which I am attempting to clean out the special characters from:</p> <pre><code><?php ini_set('display_errors', 1); ini_set('error_reporting', E_ALL); $cmd = "tail -50 /home/user/logfile.log"; exec("$cmd 2>&1", $output); foreach($output as $outputline) { exec('sed -r '.escapeshellarg("s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g").' $output'); echo ("$outputline\n"); } ?> </code></pre> <p>Update: I think this should take the original output, clean out the special characters, and then output the cleaned up text, but it doesn't work as I still see junk like this:</p> <pre><code>[0;35;1m[something] text here[m </code></pre> <p>The [something] part is fine but the [0;35;1m ... [m needs to go.</p>

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