localhost/test

http://localhost/test

The localhost/test path is used for test pages, debug scripts, and development testing. Create a test directory to safely experiment without affecting production code.

→ Open localhost/test

Create Test Directory

# Windows XAMPP
cd C:\xampp\htdocs
mkdir test

# Linux
cd /var/www/html
sudo mkdir test
sudo chown -R www-data:www-data test

# Mac MAMP
cd /Applications/MAMP/htdocs
mkdir test
    

Common Test Files

PHP Info Test

Create test/phpinfo.php:

<?php
// Display PHP configuration
phpinfo();
?>
    

Access: localhost/test/phpinfo.php

Database Connection Test

Create test/dbtest.php:

<?php
// MySQL connection test
$host = 'localhost';
$user = 'root';
$pass = '';
$db = 'test';

$conn = mysqli_connect($host, $user, $pass, $db);

if ($conn) {
    echo "Database connected successfully!";
    echo "
Server: " . mysqli_get_server_info($conn);
    mysqli_close($conn);
} else {
    echo "Connection failed: " . mysqli_connect_error();
}
?>
    

PDO Connection Test

<?php
try {
    $pdo = new PDO(
        "mysql:host=localhost;dbname=test",
        "root",
        ""
    );
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "PDO connection successful!";
    
    // Test query
    $stmt = $pdo->query("SELECT VERSION()");
    $version = $stmt->fetch();
    echo "
MySQL Version: " . $version[0];
    
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}
?>
    

Server Variables Test

Create test/server.php:

<?php
echo "Server Information";
echo "Server Software: " . $_SERVER['SERVER_SOFTWARE'] . "
";
echo "Server Name: " . $_SERVER['SERVER_NAME'] . "
";
echo "Server Port: " . $_SERVER['SERVER_PORT'] . "
";
echo "Document Root: " . $_SERVER['DOCUMENT_ROOT'] . "
";
echo "PHP Version: " . phpversion() . "
";
echo "OS: " . PHP_OS . "
";

echo "PHP Modules";
print_r(get_loaded_extensions());
?>
    

HTML Test Page

Create test/index.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Test Page</title>
    <style>
        body { font-family: Arial, sans-serif; padding: 20px; }
        .success { color: green; }
        .error { color: red; }
    </style>
</head>
<body>
    <h1>Test Page Working</h1>
    <p class="success">If you see this, your server is running correctly.</p>
    
    <h2>Quick Tests</h2>
    <ul>
        <li><a href="phpinfo.php">PHP Info</a></li>
        <li><a href="dbtest.php">Database Test</a></li>
        <li><a href="server.php">Server Info</a></li>
    </ul>
</body>
</html>
    

JavaScript Test

Create test/script.html:

<!DOCTYPE html>
<html>
<head>
    <title>JavaScript Test</title>
</head>
<body>
    <h1>JavaScript Test</h1>
    <button onclick="testFunction()">Click to Test</button>
    <div id="output">

File Upload Test

Create test/upload.php:

File Upload Test

<?php if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_FILES['testfile'])) { $file = $_FILES['testfile']; echo "

File Information:

"; echo "Name: " . $file['name'] . "
"; echo "Type: " . $file['type'] . "
"; echo "Size: " . $file['size'] . " bytes
"; echo "Temp: " . $file['tmp_name'] . "
"; echo "Error: " . $file['error'] . "
"; if ($file['error'] === 0) { echo "

Upload successful!

"; } else { echo "

Upload failed!

"; } } ?>

Session Test

Create test/session.php:

<?php session_start(); // Set session variable if (!isset($_SESSION['visits'])) { $_SESSION['visits'] = 0; } $_SESSION['visits']++; echo "

Session Test

"; echo "Session ID: " . session_id() . "
"; echo "Page visits: " . $_SESSION['visits'] . "
"; echo "
Refresh to increment"; // Display all session variables echo "

Session Variables:

"; echo "

";
print_r($_SESSION);
echo "

"; ?>

API Test

Create test/api.php:

<?php
header('Content-Type: application/json');

// Simple API endpoint for testing
$response = [
    'status' => 'success',
    'message' => 'API is working',
    'timestamp' => time(),
    'server' => $_SERVER['SERVER_NAME'],
    'method' => $_SERVER['REQUEST_METHOD']
];

echo json_encode($response, JSON_PRETTY_PRINT);
?>
    

Test with: curl http://localhost/test/api.php

Email Test

Create test/email.php:

<?php
// Test if mail() function works
$to = "test@example.com";
$subject = "Test Email";
$message = "This is a test email from localhost.";
$headers = "From: noreply@localhost";

$result = mail($to, $subject, $message, $headers);

if ($result) {
    echo "Email function is available and executed.";
    echo "
Note: Email may not actually send without SMTP configuration.";
} else {
    echo "Email function failed or is not configured.";
}

// Check mail configuration
echo "Mail Configuration:";
echo "SMTP: " . ini_get('SMTP') . "
";
echo "smtp_port: " . ini_get('smtp_port') . "
";
echo "sendmail_path: " . ini_get('sendmail_path') . "
";
?>
    

Test Directory Structure

htdocs/test/
├── index.html          # Main test page
├── phpinfo.php        # PHP configuration
├── dbtest.php         # Database test
├── server.php         # Server info
├── script.html        # JavaScript test
├── upload.php         # File upload test
├── session.php        # Session test
├── api.php           # API endpoint test
├── email.php         # Email test
└── README.txt        # Test documentation
    

Security Considerations

Delete on Production - Never deploy test files to production servers
Restrict Access - Use .htaccess to password protect test directory
No Sensitive Data - Don't use real credentials in test files
Remove phpinfo() - Exposes server configuration details

Protect Test Directory

Create test/.htaccess:

AuthType Basic
AuthName "Test Area"
AuthUserFile /path/to/.htpasswd
Require valid-user

# Or deny all access
# Deny from all
    

Best Practice: Use descriptive file names for tests. Instead of test.php, use db-connection-test.php or api-endpoint-test.php for clarity.

Common Test URLs

localhost/test/ - Main test directory
localhost/test/phpinfo.php - PHP configuration
localhost/test/dbtest.php - Database connection
localhost/test/api.php - API endpoint

Frequently Asked Questions

Why use localhost/test?

It provides an isolated location for debugging and testing without affecting your main application or production files.

Is localhost/test secure?

By default, it's accessible to anyone on localhost. For network access, use password protection or IP restrictions via .htaccess.

Should I commit test files to version control?

Generally no. Add /test/ to .gitignore to avoid committing test files, especially those with phpinfo() or database credentials.

Related Resources

localhost/dev - Development path
localhost/demo - Demo applications
localhost/phpmyadmin - Database management
localhost/api - API endpoints