Logs a variable to a drupal_debug.txt in the site's temp directory.

Parameters

$data: The variable to log to the drupal_debug.txt log file.

$label: (optional) If set, a label to output before $data in the log file.

Return value

No return value if successful, FALSE if the log file could not be written to.

See also

dd()

http://drupal.org/node/314112

File

sites/all/modules/ulmus/devel/devel.module, line 1619

Code

function drupal_debug($data, $label = NULL) {
  $out = ($label ? $label . ': ' : '') . print_r($data, TRUE) . "\n";

  // The temp directory does vary across multiple simpletest instances.
  $file = 'temporary://drupal_debug.txt';
  if (file_put_contents($file, $out, FILE_APPEND) === FALSE) {
    drupal_set_message(t('The file could not be written.'), 'error');
    return FALSE;
  }
}