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PHP readdir () returns records "." And ".."

I am coding a simple web reporting system for my company. I wrote a script for index.php that gets a list of files in the "reports" directory and automatically creates a link to that report. It works fine, but my problem here is readdir () keeps returning. and .. directory pointers in addition to directory contents. Is there a way to prevent this OTHER THAN loop through the returned array and delete them manually?

Here's the relevant code for the curious:

//Open the "reports" directory
$reportDir = opendir('reports');

//Loop through each file
while (false !== ($report = readdir($reportDir)))
{
  //Convert the filename to a proper title format
  $reportTitle = str_replace(array('_', '.php'), array(' ', ''), $report);
  $reportTitle = strtolower($reportTitle);
  $reportTitle = ucwords($reportTitle);

  //Output link
  echo "<a href=\"viewreport.php?" . $report . "\">$reportTitle</a><br />";
}

//Close the directory
closedir($reportDir);
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5 answers


In the above code, you can add to the first line in the loop while

:



if ($report == '.' or $report == '..') continue;
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array_diff(scandir($reportDir), array('.', '..'))

or even better:



foreach(glob($dir.'*.php') as $file) {
    # do your thing
}
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No, these files are owned by the directory, but readdir

should return them. Identify every other behavior that needs to be broken.

Anyway, just skip them:

while (false !== ($report = readdir($reportDir)))
{
  if (($report == ".") || ($report == ".."))
  {
     continue;
  }
  ...
}
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I don't know any other way like "." and ".." are the proper directories. Since you are looping about generating the correct report url anyway, you can just add a little if

that ignores .

and ..

for further processing.

CHANGE
Gender Lammertsma was a bit faster than me. This is the solution you want; -)

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I wanted to check for "." and directories ".." as well as any files that might be invalid based on what I stored in the directory, so I used:

while (false !== ($report = readdir($reportDir)))
{
    if (strlen($report) < 8) continue;
    // do processing
}
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