calling multiple function in hook menu in drupal

Question

i try to call more than one function in a single hook_menu functionality..but am not getting more than one functionality in the page callback..please help me to solve this..below is my code i try to access getvalue_my_form and getvalue_show in a pagecallback..

     <?php
  global $ema;
  $ema=$_POST['email'];

   drupal_set_message('email:'.$ema);

   function getvalue_menu() {
   $items = array();
    $items['formtest1'] = array(
    'title' => 'valuegetting',
   'page callback' => 'drupal_get_form',
  'page arguments' => array('getvalue_my_form'),
   'access arguments' => array('access content'),
    'type' => MENU_NORMAL_ITEM,
     );

    return $items;
   }
   function getvalue_my_form($form, &$form_state) {

    $form['image_file'] = array(
   '#title' => t('upload Banner:'),
   '#type' => 'file',
    );
   return $form; 
   }
  function getvalue_show()
    {
   $em="hi welcome";
    return $em;

    }

Answer 1

drupal hooking system won't be mixed with general php page coding. Ex.

you don't write global $ema; etc outside of hook function. If you want to call two functions assuming your module name is getvalue, you probably want to do this.

function getvalue_menu() {
    $items = array();
    $items['formtest1'] = array(
        'title' => 'valuegetting',
        'page callback' => 'getvalue_two_functions',
        'page arguments' => array(),
        'access arguments' => array('access content'),
        'type' => MENU_NORMAL_ITEM,
     );

    return $items;
}

function getvalue_two_functions() {
    // call first function
    $two_values['first'] = 1;

    // call second function
    $two_values['second'] = 2;

    return $two_values;
}

When you type formtest1 in URL, it'll reach getvalue_two_functions(). Form function is just another drupal call, you can call

drupal_get_form('getvalue_my_form'); 

inside getvalue_two_functions().