Test File Mode (PHP)

testmode.php

<?php
if (count($argv) < 2) {
  print "Usage: php testmode.php file [file [...]]" . PHP_EOL;
  exit(1);
}

array_shift($argv);

foreach ($argv as $file) {
  print "=== Testing $file" . PHP_EOL;
  $stat = stat($file);
  print "Raw mode: " . $stat['mode'] . PHP_EOL;
  $mode = $stat['mode'];
  print "Octal mode: " . decoct($mode) . PHP_EOL . PHP_EOL;

  print ($mode & 0400) . " is the owner's read bit." . PHP_EOL;
  print ($mode & 0040) . " is the group's read bit." . PHP_EOL;
  print ($mode & 0004) . " is the other's read bit." . PHP_EOL;

  print ($mode & 0200) . " is the owner's write bit." . PHP_EOL;
  print ($mode & 0020) . " is the group's write bit." . PHP_EOL;
  print ($mode & 0002) . " is the other's write bit." . PHP_EOL;

  print PHP_EOL;

  if ($mode & 0100000) {
    print "This is a file." . PHP_EOL;
  }
  if ($mode & 040000) {
    print "This is a directory." . PHP_EOL;
  }

  print PHP_EOL;
}