A PHP command line script for checking the REGEX of the mongodb+srv support

yii2-mongodb-srv-support-test.php

<?php

/**
 * @return string database name
 */
function getDefaultDatabaseName($dsn)
{
    if (preg_match('/^mongodb(:|\+srv:)\\/\\/.+\\/([^?&]+)/s', $dsn, $matches)) {
        // Updated Pattern: /^mongodb(:|\+srv:)\\/\\/.+\\/([^?&]+)/s
        // Original Pattern: '/^mongodb:\\/\\/.+\\/([^?&]+)/s'
        return $matches[2];
    } else {
        return false;
    }
}


$tests = [
    'mongodb://localhost:27017/dbname' => 'dbname',
    'mongodb+srv://localhost:27017/dbname' => 'dbname',
    'mongodb+srv://staging-admin:password@staging-cvs.mongodb.net/test?retryWrites=true&w=majority' => 'test',
    'mongodb://staging-admin:password@staging-cvs.mongodb.net/test?retryWrites=true&w=majority' => 'test',
    'invalid' => false,
    'invalid+srv' => false,
];

foreach ($tests as $testString => $expectedResult) {
    $result = getDefaultDatabaseName($testString);
    echo ($expectedResult === $result ? '✓ As expected' : '✘ ERROR INVALID') . " the DB name for {$testString} is " . json_encode($result) . "\n";
}

// ----------------------------------
//   Result
// ----------------------------------
// > php yii2-mongodb-srv-support-test.php
// ✓ As expected the DB name for mongodb://localhost:27017/dbname is "dbname"
// ✓ As expected the DB name for mongodb+srv://localhost:27017/dbname is "dbname"
// ✓ As expected the DB name for mongodb+srv://staging-admin:password@staging-cvs.mongodb.net/test?retryWrites=true&w=majority is "test"
// ✓ As expected the DB name for mongodb://staging-admin:password@staging-cvs.mongodb.net/test?retryWrites=true&w=majority is "test"
// ✓ As expected the DB name for invalid is false
// ✓ As expected the DB name for invalid+srv is false