How to create an admin user programmatically in Magento 1 without the current admin password?

You have to create a admin.php in root directory and paste below code.How to create admin user programmatically in Magento 1 without current admin password?

<?php
    $mageFilename = 'app/Mage.php';
    if (!file_exists($mageFilename)) {
        echo $mageFilename." was not found";
        exit;
    }
    require_once $mageFilename;
    Mage::app();

    try {
        //create new user by providing details below
        $user = Mage::getModel('admin/user')
            ->setData(array(
                'username'  => 'admin',
                'firstname' => 'yourname',
                'lastname'  => 'surname',
                'email'     => '[email protected]',
                'password'  => '[email protected]',
                'is_active' => 1
            ))->save();

    } catch (Exception $e) {
        echo $e->getMessage();
        exit;
    }

    try {
        //create new role
        $role = Mage::getModel("admin/roles")
                ->setName('Inchoo')
                ->setRoleType('G')
                ->save();

        //give "all" privileges to role
        Mage::getModel("admin/rules")
                ->setRoleId($role->getId())
                ->setResources(array("all"))
                ->saveRel();

    } catch (Mage_Core_Exception $e) {
        echo $e->getMessage();
        exit;
    } catch (Exception $e) {
        echo 'Error while saving role.';
        exit;
    }

    try {
        //assign user to role
        $user->setRoleIds(array($role->getId()))
            ->setRoleUserId($user->getUserId())
            ->saveRelations();

    } catch (Exception $e) {
        echo $e->getMessage();
        exit;
    }

    echo 'Admin User sucessfully created!<br /><br /><b>THIS FILE WILL NOW TRY TO DELETE ITSELF, BUT PLEASE CHECK TO BE SURE!</b>';
    @unlink(__FILE__);
    ?>

How to create admin user programmatically in Magento 1 without current admin password?expoundsofttechsolution

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