Logging in a user to Parse with PHP

parse_php_login.php

<?php

require_once( 'parse/parse.php' );

$parse = new parseUser();
$parse->username = 'username';
$parse->password = 'password';
$result = $parse->login();

try {
    $result = $parse->login();
    
    if ( $result ) {
        // success, set cookie
        echo 'Login successful';
    } else {
        // display error
        echo 'Login error';
    }
} catch ( Exception $e ) {
    echo 'Login error: ' . $e;
}