Tests for php is_writeable function

is_writeable-test.php

<?php
/**
 * is_writeable-test.php
 * 
 * (on windows is_writeable sometimes returns false, even you have write-permissions, this testfile helps to check this)
 *
 * @see: https://bugs.php.net/bug.php?id=68926
 *
 * 
 * @since  2022-08-11
 */
header('Content-Type: text/plain');

$dir = '.';
$result = file_put_contents("{$dir}/is-this-writeable.txt", 'when you see this, it is writeable');

$realDir = realpath($dir);
if ($result !== false)
  echo "Dir '{$realDir }' is writeable" . PHP_EOL;
else
  echo "Dir '{$realDir }' NOT is writeable" . PHP_EOL;

echo PHP_EOL . 'Function-results: '
 . PHP_EOL . '-------------------------------' . PHP_EOL;

$tests = [
  'file_exists'  => file_exists($realDir),
  'is_writeable' => is_writeable($realDir),
  'is_readable'  => is_writeable($realDir),
  'is_dir'       => is_dir($realDir),
  'is_file'      => is_file($realDir),
  'touch'        => touch($realDir),
  'fileperms'    => decoct(fileperms($realDir) & 0777)
];

foreach($tests as $func => $result) {
  printf('%-20s: %s'.PHP_EOL, $func, var_export($result, true));
}
?>