Generate magento products

bootstrap.php

<?php
// file location dev/bootstrap.php

require_once dirname(__FILE__) . '/../app/Mage.php';
error_reporting(E_ALL);
ini_set('display_errors', '1');
umask(0);

Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

generate-products.php

<?php
// file location dev/generate-products.php

require_once 'bootstrap.php';

$installer = new Mage_Catalog_Model_Resource_Setup('catalog_setup');

$newProductData = array(
    'name'              => 'name of product',
    'short_description' => 'short description',
    'description'       => 'description',
    'status'            => Mage_Catalog_Model_Product_Status::STATUS_ENABLED,
    'weight'            => 0,
    'tax_class_id'      => 0,
    'price'             => 12.05,
    'visibility'        => Mage_Catalog_Model_Product_Visibility::VISIBILITY_BOTH,
);

for ($i = 0; $i < 9999; $i++) {

    $api = new Mage_Catalog_Model_Product_Api();
    $api->create(
        Mage_Catalog_Model_Product_Type::DEFAULT_TYPE,
        $installer->getDefaultAttributeSetId('catalog_product'),
        uniqid(), $newProductData);

}