<?php
$curve = "prime256v1"; // ECDSA curve

// Generate the key pair
$keyPair = openssl_pkey_new(array(
    'private_key_type' => OPENSSL_KEYTYPE_EC,
    'curve_name' => $curve,
));

// Extract the private key
openssl_pkey_export($keyPair, $privateKey);

// Extract the public key
$publicKey = openssl_pkey_get_details($keyPair)['key'];

// Display the key pair
echo "Private Key: " . PHP_EOL . $privateKey . PHP_EOL;
echo "Public Key: " . PHP_EOL . $publicKey . PHP_EOL;
?>