PHP SSL Proxy Examples

<?php

// Check for required environment variables
$proxyHost = getenv('PROXY_HOST');
$proxyPort = getenv('PROXY_PORT');
$proxyUser = getenv('PROXY_USER');
$proxyPass = getenv('PROXY_PASS');

if ($proxyHost === false || $proxyPort === false || $proxyUser === false || $proxyPass === false) {
    die("Error: PROXY_HOST, PROXY_PORT, PROXY_USER, and PROXY_PASS environment variables must be set.\n");
}

// Get your local ip
$url = 'https://outboundgateway.com/ip/';

// Construct the full proxy URL from host and port
$proxyUrl = $proxyHost . ':' . $proxyPort;

// --- Initialize cURL session ---
$ch = curl_init();

// --- Set cURL Options ---

// Set the URL to request
curl_setopt($ch, CURLOPT_URL, $url);

// Set the proxy URL to your REMOTE HTTPS proxy
curl_setopt($ch, CURLOPT_PROXY, $proxyUrl);

// Tell cURL to connect to the proxy using HTTPS
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTPS);

// Set the proxy authentication
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyUser . ':' . $proxyPass);

// Tell cURL to use Basic authentication for the proxy
curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC);

// Return the response as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

echo "Attempting to connect to {$url} through direct HTTPS proxy {$proxyUrl}...\n\n";

// --- Execute the cURL session ---
$response = curl_exec($ch);

// --- Check for errors and display the result ---
if (curl_errno($ch)) {
    echo "cURL Error: " . curl_error($ch) . "\n";
} else {
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    echo "--- Success! ---\n";
    echo "Status: {$httpCode}\n";
    echo "Response Body:\n";
    $json_data = json_decode($response, true);
    echo json_encode($json_data, JSON_PRETTY_PRINT) . "\n";
}

// --- Close the cURL session ---
curl_close($ch);
?>

# Set variables and run (Linux/macOS)
export PROXY_HOST="eu-01.outboundgateway.com"
export PROXY_PORT="8443"
export PROXY_USER="your_username"
export PROXY_PASS='your_complex_password!' # Use single quotes

php app.php

# Use the official PHP CLI image with Alpine Linux
FROM php:cli-alpine

WORKDIR /app

# Copy the PHP script into the container
COPY app.php .

# Command to run the PHP script when the container starts
CMD ["php", "app.php"]

# 1. Build the image
docker build -t php-proxy-app .

# 2. Run the container (Linux/macOS)
docker run --rm \
  -e PROXY_HOST="eu-01.outboundgateway.com" \
  -e PROXY_PORT="8443" \
  -e PROXY_USER="your_username" \
  -e PROXY_PASS='your_complex_password!' \
  php-proxy-app