first import

sites/all/modules/variable/variable_example/variable_example.variable.inc

@@ -0,0 +1,67 @@
+<?php
+/**
+ * @file
+ * Variable API module. Definition for some xample variables
+ */
+
+/**
+ * Implements hook_variable_info().
+ */
+function variable_example_variable_info($options) {
+  // Simple text
+  $variables['variable_example_text'] = array(
+    'type' => 'text',
+    'title' => t('Simple text', array(), $options),
+    'default' => 'Example text.',
+    'description' => t('Example of text variable.', array(), $options),
+    'required' => TRUE,
+    'group' => 'variable_example',
+  );
+  // Simple number, demonstrates validate callback.
+  $variables['variable_example_number'] = array(
+    'type' => 'number',
+    'title' => t('Number', array(), $options),
+    'default' => 0,
+    'description' => t('Example of numeric variable.', array(), $options),
+    'required' => TRUE,
+    'group' => 'variable_example',
+  );
+  // Text with format
+  $variables['variable_example_text_format'] = array(
+    'type' => 'text_format',
+    'title' => t('Text format', array(), $options),
+    // The default value may be a string (default format will be added) or
+    // an array with 'format' (format name) and 'value' (string) elements
+    'default' => 'Example text with default format',
+    'description' => t('Example of text variable with text format.', array(), $options),
+    'required' => TRUE,
+    'group' => 'variable_example',
+  );
+  // Text with format
+  $variables['variable_example_mail_[mail_part]'] = array(
+    'type' => 'mail_text',
+    'title' => t('Example mail', array(), $options),
+    'default' => array(
+      'subject' => t('Example mail subject', array(), $options),
+      'body' => t('Example mail body.', array(), $options),
+    ),
+    'description' => t('Example mail variable with subject and body.', array(), $options),
+    'required' => TRUE,
+    'group' => 'variable_example',
+  );
+  return $variables;
+}
+
+/**
+ * Implements hook_variable_group_info().
+ */
+function variable_example_variable_group_info() {
+  $groups['variable_example'] = array(
+    'title' => t('Examples'),
+    'description' => t('Variable examples of different types.'),
+    'access' => 'administer site configuration',
+    'path' => array('admin/config/system/variable/example'),
+  );
+  return $groups;
+}
+