phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1
resources.frontController.params.displayExceptions = 1

zf create model Test

<?php
class Application_Model_Test
{}

Zend_Application_Bootstrap_Bootstrap
Zend_Application_Module_Autoloader

<?php
class Zend_Test{
 static public function echoZendTest(){
  echo 'ZendTest<br/>';
 }
}

appnamespace = "Application"

autoloadernamespaces.app = "App_"
autoloadernamespaces.my = "MyApp_"

autoloadernamespaces[] = "App_"
autoloadernamespaces[] = "MyApp_"

public function setOptions(array $options)
{
 if (!empty($options['config'])) {
  if (is_array($options['config'])) {
   $_options = array();
   foreach ($options['config'] as $tmp) {
    $_options = $this->mergeOptions($_options, $this->_loadConfig($tmp));
   }
   $options = $this->mergeOptions($_options, $options);
  } else {
   $options = $this->mergeOptions($this->_loadConfig($options['config']), $options);
  }
 }
 $this->_options = $options;
 $options = array_change_key_case($options, CASE_LOWER);
 $this->_optionKeys = array_keys($options);
 if (!empty($options['phpsettings'])) {
  $this->setPhpSettings($options['phpsettings']);
 }
 if (!empty($options['includepaths'])) {
  $this->setIncludePaths($options['includepaths']);
 }
 if (!empty($options['autoloadernamespaces'])) {
  $this->setAutoloaderNamespaces($options['autoloadernamespaces']);
 }

<?php
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap {
 protected function _initAutoload() {
  $app = $this->getApplication ();
  $namespaces = array (
    'AppTest'
  );
  $app->setAutoloaderNamespaces ( $namespaces );
  return $app;
 }
}

<?php
class AppTest_Test{
 static public function echoAppTestTest(){
  echo 'AppTestTest<br/>';
 }
}

AppTest_Test::echoAppTestTest();

$auto_loader = Zend_Loader_Autoloader::getInstance();
$resourceLoader = new Zend_Loader_Autoloader_Resource(array(
  'basePath' => '/www/model_demo1/application',
  'namespace' => '',
  'resourceTypes' => array(
    'model' => array(
      'path' => 'models',
      'namespace' => 'Model'
    )
  )
)
);
$auto_loader->pushAutoloader($resourceLoader);
$auto_loader->registerNamespace(array('AppTest2_'));
AppTest2_Test::echoAppTest2Test();
Model_ModelTest::echoModelModelTest();

<?php
class Model_ModelTest{
 static function echoModelModelTest(){
  echo 'Model_ModelTest<br/>';
 }
}

<?php
class AppTest2_Test{
 static public function echoAppTest2Test(){
  echo 'AppTest2Test<br/>';
 }
}