php_unix_domain_socket_filepath_server.php

<?php

if (file_exists('test.sock')) {
    unlink('test.sock');
}

$socket = stream_socket_server('unix://test.sock', $errorCode, $errorMessage);

if (!$socket) {
    var_dump($errorCode);
    var_dump($errorMessage);
    throw new Exception('Failed Socket Server');
}

while ($conn = stream_socket_accept($socket, 65535)) {
    var_dump(fgets($conn));
    fwrite($conn, 'Server Message' . "\n");
    fclose($conn);
}
fclose($socket);
unlink('test.sock');