Quick and Dirty File Tail in PHP

June 18, 2008 – 10:25 am

Very, very insecure.


 
$base_dir = "/var/log/sxr";
$file = (isset($_GET['file']) ? $_GET['file'] : 0);
$to_tail = 25;
 
$full_path = $base_dir . '/' . $file;
$lines = file($full_path);
$count = count($lines);
 
if($count < $to_tail) {
  $to_tail = $count;
}
 
$start = $count - $to_tail;
 
print = "Last $to_tail lines of $file<br/><br/>";
while($start < $count) {
  print $lines[$start] . '<br/>';
  $start++;
}

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Dean Vaughan

Quick and Dirty File Tail in PHP

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