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Troels Knak-Nielsen

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Recursively Find Files By Filename Pattern.

06.15.2007

| 37809 views |

        Scans a directory, and all subdirectories for files, matching a regular expression. Each match is sent to the callback provided as third argument. A simple example:

function my_handler($filename) {
  echo $filename . "\n";
}
find_files('c:/', '/php$/', 'my_handler');


And the actual snippet

function find_files($path, $pattern, $callback) {
  $path = rtrim(str_replace("\\", "/", $path), '/') . '/';
  $matches = Array();
  $entries = Array();
  $dir = dir($path);
  while (false !== ($entry = $dir->read())) {
    $entries[] = $entry;
  }
  $dir->close();
  foreach ($entries as $entry) {
    $fullname = $path . $entry;
    if ($entry != '.' && $entry != '..' && is_dir($fullname)) {
      find_files($fullname, $pattern, $callback);
    } else if (is_file($fullname) && preg_match($pattern, $entry)) {
      call_user_func($callback, $fullname);
    }
  }
}

Tags:

Comments

Snippets Manager replied on Wed, 2010/02/17 - 7:19am

Shortest way to do the same:


function find_files($path, $pattern, $callback) {
  $path = rtrim(str_replace("\\", "/", $path), '/') . '/*';
                                 
  foreach (glob ($path) as $fullname) {
    if (is_dir($fullname)) {
      find_files($fullname, $pattern, $callback);
    } else if (preg_match($pattern, $fullname)) {
      call_user_func($callback, $fullname);
    }
  }
}

Snippets Manager replied on Thu, 2010/09/23 - 11:02am

is the function just returning an array of files that match? why not use glob in the function? example:


<?php
function find_files($dir) {
$return = array();
$glob1 = glob("$dir/*");
for($i=0;$i<=count($glob1)-1;$i++) {
if(!is_dir($dir[$i])) {
array_push($return, $dir[$i]);
}
else {
$return = array_merge($return, find_files($dir[$i]));
}
}
return $return;
}
?>

i dont know if thats the same thing or not, but its the concept...