1、JavaScript

function stringformat() {

    var args = Array.prototype.slice.call(arguments);

    if (args.length == 0) { return '';}

    if (args.length == 1) { return args[0]; }

    var str = args.shift();

    return str.replace(

                /\\?\{([^{}]+)\}/g,

                function(match, name) {

                    if (match.charAt(0) === '\\') {

                        return match.slice(1);

                    }

                    return (args[name] === undefined) ? match : args[name];

                }

            );

}

// 返回 my name is Rain Man and age is 28

stringformat('my name is {0} and age is {1}', 'Rain Man', 28, 'an');

2、PHP

function string_format() {

    $args = func_get_args();

    if (count($args) == 0) { return '';}

    if (count($args) == 1) { return $args[0]; }

    $str = array_shift($args);

    $GLOBALS['OBJ'] = $args;

    $str = preg_replace_callback(

            '/\\\?{([^{}]+)}/',

            function ($matches) {

                list($matche, $name) = $matches;

                if ($matche[0] === '\\') {

                    return substr($matche, 1);

                }

                $obj = $GLOBALS['OBJ'];

                return isset($obj[$name]) ? $obj[$name] : $matche;

            },

            $str

     );

    $GLOBALS['OBJ'] = NULL;

    return $str;

}

// my name is Rain Man and age is 28

echo string_format('my name is {0} and age is {1}', 'Rain Man', 28, 'an');