5.x-1.x devel.moduledrupal_debug($data, $label = NULL)
6.x-1.x devel.moduledrupal_debug($data, $label = NULL)
7.x-1.x devel.moduledrupal_debug($data, $label = NULL)
1 call to drupal_debug()

File

 

./devel.module, line 1830
 

 

Code

function drupal_debug($data, $label = NULL) {
  ob_start();
  print_r($data);
  $string = ob_get_clean();
  if ($label) {
    $out = $label . ': ' . $string;
  }
  else {
    $out = $string;
  }
  $out .= "\n";

  // The temp directory does vary across multiple simpletest instances.
  $file = file_directory_temp() . '/drupal_debug.txt';
  if (file_put_contents($file, $out, FILE_APPEND) === FALSE) {
    drupal_set_message(t('Devel was unable to write to %file.', array('%file' => $file)), 'error');
    return FALSE;
  }
}

来自  https://api.drupal.org/api/devel/devel.module/function/drupal_debug/6.x-1.x