php-uv

interface to libuv for php (experimental). also supports http-parser.

Experimental

This extension is experimental, its functions may change their names or move to extension all together so do not rely to much on them you have been warned!

Install

git clone https://github.com/chobie/php-uv.git --recursive
cd php-uv
(cd libuv && make)
phpize
./configure
make
make install
# add `extension=uv.so` to your php.ini

Examples

see examples and tests directory.

<?php
$tcp = uv_tcp_init();

uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',8888));

uv_listen($tcp,100, function($server){
    $client = uv_tcp_init();
    uv_accept($server, $client);
    var_dump(uv_tcp_getsockname($server));

    uv_read_start($client, function($socket, $nread, $buffer){
        var_dump($buffer);
        uv_close($socket);
    });
});

$c = uv_tcp_init();
uv_tcp_connect($c, uv_ip4_addr('0.0.0.0',8888), function($stream, $stat){
    if ($stat == 0) {
        uv_write($stream,"Hello",function($stream, $stat){
            uv_close($stream);
        });
    }
});

uv_run();

Community

Check out #php-uv on irc.freenode.net.

Author

• Shuhei Tanuma

License

PHP License

Documents

this documents was generated by examples/docgen.php.

void uv_unref(resource $uv_t)

Description

decrement reference

Parameters

resource $uv_t: uv resource handle.

Return Value

*void *:

Example

<?php
$tcp = uv_tcp_init();
uv_unref($tcp);

TODO

• support uv_loop_t

long uv_last_error([resource $uv_loop])

Description

get last error code.

Parameters

resource $uv_loop: uv loop handle

Return Value

long $error_code: error code

Example

<?php
$err = uv_last_error();
var_dump($err);

string uv_err_name(long $error_code)

Description

get error code name.

Parameters

long $error_code: libuv error code

Return Value

string $erorr_name: error name

Example

<?php
$err = uv_last_error();
var_dump(uv_err_name($err));

string uv_strerror(long $error_code)

Description

get error message.

Parameters

long $error_code: libuv error code

Return Value

string $erorr_message: error message

Example

<?php
$err = uv_last_error();
var_dump(uv_strerror($err));

void uv_update_time(resource $uv_loop)

void uv_ref(resource $uv_handle)

Description

increment reference count

Parameters

resource $uv_handle: uv resource.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();
uv_ref($tcp);

TODO

• support uv_loop resource

void uv_run([resource $uv_loop])

Description

run event loop

Parameters

resource $uv_loopg: uv_loop resource

Return Value

void:

Example

<?php
$loop = uv_default_loop();
$async = uv_async_init($loop, function($async, $status){
    var_dump(1);
    uv_close($async);
});

uv_async_send($async);

uv_run();

void uv_run_once([resource $uv_loop])

void uv_loop_delete(resource $uv_loop)

Description

delete specified loop resource.

Parameters

resource $uv_loop: uv_loop resource

Return Value

void:

Example

long uv_now(resource $uv_loop)

void uv_tcp_bind(resource $uv_tcp, resource $uv_sockaddr)

Description

binds a name to a socket.

Parameters

resource $uv_tcp: uv_tcp resource

resource $uv_sockaddr: uv sockaddr4 resource.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();

uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));

uv_listen($tcp,100, function($server){
    $client = uv_tcp_init();
    uv_accept($server, $client);
    var_dump(uv_tcp_getsockname($server));

    uv_read_start($client, function($socket, $nread, $buffer) use ($server){
        var_dump($buffer);
        uv_close($socket);
        uv_close($server);
    });
});

void uv_tcp_bind6(resource $uv_tcp, resource $uv_sockaddr)

Description

binds a name to a socket.

Parameters

resource $uv_tcp: uv_tcp resource

resource $uv_sockaddr: uv sockaddr6 resource.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();
uv_tcp_bind6($tcp, uv_ip6_addr('::1',9999));

uv_listen($tcp,100, function($server){
    $client = uv_tcp_init();
    uv_accept($server, $client);
    var_dump(uv_tcp_getsockname($server));

    uv_read_start($client, function($socket, $nread, $buffer) use ($server){
        var_dump($buffer);
        uv_close($socket);
        uv_close($server);
    });
});

void uv_write(resource $handle, string $data, callable $callback)

Description

send buffer to speicified uv resource.

Parameters

resource $handle: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.) string $data: buffer. callable $callback: callable variables. this callback expects (resource $handle, long $status)

Return Value

void:

Example

void uv_write2(resource $handle, string $data, resource $send, callable $callback)

void uv_tcp_nodelay(resource $handle, bool $flag)

void uv_accept(resource $server, resource $client)

Description

accepts a connection on a socket.

Parameters

resource $uv_tcp: uv_tcp server resource

resource $uv_tcp: uv_tcp client resource.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();

uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));

uv_listen($tcp,100, function($server){
    $client = uv_tcp_init();
    uv_accept($server, $client);
    var_dump(uv_tcp_getsockname($server));

    uv_read_start($client, function($socket, $nread, $buffer) use ($server){
        var_dump($buffer);
        uv_close($socket);
        uv_close($server);
    });
});

void uv_shutdown(resource $handle, callable $callback)

Description

shutdown uv handle.

Parameters

resource $handle: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.) callable $callback: callable variables. this callback expects (resource $handle, long $status)

Return Value

void:

Example

void uv_close(resource $handle, callable $callback)

Description

close uv handle.

Parameters

resource $handle: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.) callable $callback: callable variables. this callback expects (resource $handle, long $status)

Return Value

void:

Example

void uv_read_start(resource $handle, callable $callback)

Description

starts read callback for uv resources.

Parameters

resource $handle: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.)

callable $callback: callable variables. this callback parameter expects (resource $handle, long $nread, string buffer)

Return Value

void:

Example

Note

• You have to handle erorrs correctly. otherwise this will leak.
• if you want to use PHP's stream or socket resource. see uv_fs_poll_init and uv_fs_read.

void uv_read2_start(resource $handle, callable $callback)

void uv_read_stop(resource $handle)

Description

stop read callback

Parameters

resource $uv: uv resource handle which started uv_read.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();

uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));

uv_listen($tcp,100, function($server){
    $client = uv_tcp_init();
    uv_accept($server, $client);
    var_dump(uv_tcp_getsockname($server));

    uv_read_start($client, function($socket, $nread, $buffer) use ($server){
        uv_read_stop($socket);
        var_dump($buffer);
        uv_close($socket);
        uv_close($server);
    });
});

resource uv_ip4_addr(string $ipv4_addr, long $port)

Description

create a ipv4 sockaddr.

Parameters

string $ipv4_addr: ipv4 address

long $port: port number.

Return Value

resource $uv_sockaddr: sockaddr resource

Example

<?php
$sockaddr = uv_ip4_addr("127.0.0.1", 8080);

resource uv_ip6_addr(string $ipv6_addr, long $port)

Description

create a ipv6 sockaddr.

Parameters

string $ipv6_addr: ipv6 address

long $port: port number.

Return Value

resource $uv_sockaddr: sockaddr resource

Example

<?php
$sockaddr = uv_ip6_addr("::1", 8080);

void uv_listen(resource $handle, long $backlog, callable $callback)

Description

listens for a connection on a uv handle.

Parameters

resource $handle: uv resource handle (tcp, udp and pipe)

long $backlog: backlog

callable $callback: this callback parameter expects (resource $connection, long $status)

Return Value

*void *:

Example

<?php
$tcp = uv_tcp_init();

uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));

uv_listen($tcp,100, function($server, $status){
    $client = uv_tcp_init();
    uv_accept($server, $client);
    uv_read_start($client, function($socket, $nread, $buffer) use ($server){
        var_dump($buffer);
        uv_close($socket);
        uv_close($server);
    });
});
uv_run();

void uv_tcp_connect(resource $handle, resource $ipv4_addr, callable $callback)

Description

connect to specified ip address and port.

Parameters

resource $handle: requires uv_tcp_init() resource. resource $ipv4_addr: requires uv_sockaddr resource. callable $callback: callable variables.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();
uv_tcp_connect($tcp, uv_ip4_addr("127.0.0.1",8080), function($tcp_handle, $status){
	uv_close($tcp_handle);
});

uv_run();

void uv_tcp_connect6(resource $handle, resource $ipv6_addr, callable $callback)

Description

connect to specified ip address and port.

Parameters

resource $handle: requires uv_tcp_init() resource. resource $ipv4_addr: requires uv_sockaddr resource. callable $callback: callable variables.

Return Value

void:

Example

<?php
$tcp = uv_tcp_init();
uv_tcp_connect($tcp, uv_ip6_addr("::1",8080), function($tcp_handle, $status){
	uv_close($tcp_handle);
});

uv_run();

resource uv_timer_init([resource $loop])

Description

initialize timer handle.

Parameters

resource $loop: uv_loop resource.

Return Value

resource $timer: initialized timer resource.

Example

<?php
$timer = uv_timer_init();

void uv_timer_start(resource $timer, long $timeout, long $repeat, callable $callback)

Description

initialize timer handle.

Parameters

resource $loop: uv_loop resource.

Return Value

resource $timer: initialized timer resource.

Example

<?php
$timer = uv_timer_init();
uv_timer_start($timer, 100, 100, function($timer, $status){
	echo "Hello\n";
});

uv_run();

void uv_timer_stop(resource $timer)

Description

stop specified timer.

Parameters

resource $timer: uv timer resource.

Return Value

void:

Example

<?php
$timer = uv_timer_init();
uv_timer_start($timer, 100, 100, function($timer, $status){
	echo "Hello\n";
	uv_timer_stop($timer);
});

uv_run();

void uv_timer_again(resource $timer)

Description

restart timer.

Parameters

resource $timer: uv_timer resource.

Return Value

void:

Example

void uv_timer_set_repeat(resource $timer, long $repeat)

Description

set repeat count.

Parameters

resource $uv_timer: uv_timer resource

long $repeat: repeat count

Return Value

void:

Example

long uv_timer_get_repeat(resource $timer)

Description

returns repeat interval.

Parameters

resource $uv_timer: uv_timer resource

Return Value

long $repeat_time:

Example

void uv_idle_start(resource $idle, callable $callback)

Description

start idle callback.

Parameters

resource $idle: uv_idle resource. callable $callback: idle callback.

Return Value

void:

Example

<?php
$loop = uv_default_loop();
$idle = uv_idle_init();

$i = 0;
uv_idle_start($idle, function($idle_handle, $stat) use (&$i){
    echo "count: {$i}" . PHP_EOL;
    $i++;

    if ($i > 3) {
        uv_idle_stop($idle);
    }
    sleep(1);
});

uv_run();

void uv_getaddrinfo(resource $loop, callable $callback, string $node, string $service, array $hints)

void uv_idle_stop(resource $idle)

Description

stop idle callback.

Parameters

resource $idle: uv_idle resource.

Return Value

void:

Example

<?php
$loop = uv_default_loop();
$idle = uv_idle_init();

$i = 0;
uv_idle_start($idle, function($idle_handle, $stat) use (&$i){
    echo "count: {$i}" . PHP_EOL;
    $i++;

    if ($i > 3) {
        uv_idle_stop($idle);
    }
    sleep(1);
});

uv_run();

resource uv_tcp_init([resource $loop])

Description

create a tcp socket.

Parameters

resource $loop: loop resource or null. if not specified loop resource then use uv_default_loop resource.

Return Value

resource php_uv: uv resource which initialized for tcp.

Example

<?php
$tcp = uv_tcp_init();

resource uv_idle_init([resource $loop])

Description

initialize uv idle handle.

Parameters

resource $loop: uv_loop resource.

Return Value

resource $idle: initialized idle handle.

Example

<?php
$loop = uv_default_loop();
$idle = uv_idle_init($loop);

resource uv_default_loop()

Description

return default loop handle.

Parameters

Return Value

resource $loop:

Example

<?php
$loop = uv_default_loop();

resource uv_loop_new()

Description

create a new loop handle.

Parameters

Return Value

resource $loop:

Example

<?php
$loop = uv_loop_new();

resource uv_udp_init([resource $loop])

Description

create a udp socket.

Parameters

resource $loop: loop resource or null. if not specified loop resource then use uv_default_loop resource.

Return Value

resource php_uv: uv resource which initialized for udp.

Example

<?php
$udp = uv_udp_init();

void uv_udp_bind(resource $resource, resource $address, long $flags)

void uv_udp_bind6(resource $resource, resource $address, long $flags)

void uv_udp_recv_start(resource $handle, callable $callback)

void uv_udp_recv_stop(resource $handle)

long uv_udp_set_membership(resource $handle, string $multicast_addr, string $interface_addr, long $membership)

void uv_udp_set_multicast_loop(resource $handle, long $enabled)

void uv_udp_set_multicast_ttl(resource $handle, long $ttl)

void uv_udp_set_broadcast(resource $handle, bool $enabled)

void uv_udp_send(resource $handle, string $data, resource $uv_addr, callable $callback)

void uv_udp_send6(resource $handle, string $data, resource $uv_addr6, callable $callback)

bool uv_is_active(resource $handle)

bool uv_is_readable(resource $handle)

bool uv_is_writable(resource $handle)

bool uv_walk(resource $loop, callable $closure[, array $opaque])

TODO

• implement this.

long uv_guess_handle(resource $uv)

long uv_handle_type(resource $uv)

Description

returns current uv type. (this is not libuv function.)

Parameters

resource $uv_handle: uv_handle

Return Value

long $handle_type: should return UV::IS_UV_* constatns. e.g) UV::IS_UV_TCP

Example

<?php
$tcp = uv_tcp_init();
var_dump(uv_handle_type($tcp));

Note

• this may change.

resource uv_pipe_init(resource $loop, long $ipc)

Description

initialize pipe resource

Parameters

resource $uv_loop: uv_loop resource

long $ipc: when this pipe use for ipc, please set 1 otherwise 0.

Return Value

resource $uv_pipe:

Example

<?php
$pipe = uv_pipe_init(uv_default_loop(), 0);

void uv_pipe_open(resource $handle, long $pipe)

long uv_pipe_bind(resource $handle, string $name)

void uv_pipe_connect(resource $handle, string $path, callable $callback)

void uv_pipe_pending_instances(resource $handle, long $count)

resource uv_ares_init_options(resource $loop, array $options, long $optmask)

void ares_gethostbyname(resource $handle, string $name, long $flag, callable $callback)

array uv_loadavg(void)

Description

retunrs current loadaverage.

Parameters

Return Value

array $loadaverage:

Example

<?php
var_dump(uv_loadavg());
//array(3) {
//  [0]=>
//  float(1.7421875)
//  [1]=>
//  float(1.427734375)
//  [2]=>
//  float(1.3955078125)
//}

Note

returns array on windows box. (does not support load average on windows)

double uv_uptime(void)

Description

returns current uptime.

Parameters

Return Value

long $uptime:

Example

<?php
var_dump(uv_uptime());
//float(1247516)

long uv_get_free_memory(void)

Description

returns current free memory size.

Parameters

Return Value

long $free:

Example

<?php
var_dump(uv_get_free_memory());
//int(135860224)

long uv_get_total_memory(void)

Description

returns total memory size.

Parameters

Return Value

long $free:

Example

<?php
var_dump(uv_get_total_memory());
//int(8589934592)

long uv_hrtime(void)

TODO

check implmentation

string uv_exepath(void)

Description

returns current exepath. basically this will returns current php path.

Parameters

Return Value

string $exepath:

Example

<?php
var_dump(uv_exepath());
//string(53) "/Users/chobie/.phpenv/versions/5.4.1-zts-goto/bin/php"
```



### string uv_cwd(void)

##### *Description*

returns current working directory.

##### *Parameters*

##### *Return Value*

*string $cwd*: 

##### *Example*

````php
<?php
var_dump(uv_cwd());
//string(24) "/Users/chobie/src/php-uv"

array uv_cpu_info(void)

Description

returns current cpu informations

.

Parameters

Return Value

array $cpu_info:

Example

<?php
var_dump(uv_cpu_info());
//array(8) {
//  [0]=>
//  array(3) {
//    ["model"]=>
//    string(13) "MacBookPro8,2"
//    ["speed"]=>
//    int(2200)
//    ["times"]=>
//    array(5) {
//      ["sys"]=>
//      int(69952140)
//      ["user"]=>
//      int(38153450)
//      ["idle"]=>
//      int(776709120)
//      ["irq"]=>
//      int(0)
//      ["nice"]=>
//      int(0)
//    }
//  }...

array uv_interface_addresses(void)

resource uv_spawn(resource $loop, string $command, array $args, array $context, callable $callback)

void uv_process_kill(resource $handle, long $signal)

TODO:

void uv_kill(long $pid, long $signal)

bool uv_chdir(string $directory)

resource uv_rwlock_init(void)

uv_rwlock_rdlock(resource $handle)

bool uv_rwlock_tryrdlock(resource $handle)

void uv_rwlock_rdunlock(resource $handle)

uv_rwlock_wrlock(resource $handle)

uv_rwlock_trywrlock(resource $handle)

uv_rwlock_wrunlock(resource $handle)

uv_lock uv_mutex_init(void)

void uv_mutex_lock(uv_lock $lock)

bool uv_mutex_trylock(uv_lock $lock)

uv_lock uv_sem_init(void)

void uv_sem_post(uv_lock $sem)

void uv_sem_wait(uv_lock $sem)

void uv_sem_trywait(uv_lock $sem)

resource uv_prepare_init(resource $loop)

void uv_prepare_start(resource $handle, callable $callback)

void uv_prepare_stop(resource $handle)

resoruce uv_check_init([resource $loop])

void uv_check_start(resource $handle, callable $callback)

void uv_check_stop(resource $handle)

resource uv_async_init(resource $loop, callable $callback)

void uv_async_send(resource $handle)

void uv_queue_work(resource $loop, callable $callback, callable $after_callback)

resource uv_fs_open(resource $loop, string $path, long $flag, long $mode, callable $callback)

void uv_fs_read(resoruce $loop, zval $fd, callable $callback)

void uv_fs_close(resource $loop, zval $fd, callable $callback)

void uv_fs_write(resource $loop, zval $fd, string $buffer, long $offset, callable $callback)

void uv_fs_fsync(resource $loop, zval $fd, callable $callback)

void uv_fs_fdatasync(resource $loop, zval $fd, callable $callback)

void uv_fs_ftruncate(resource $loop, zval $fd, long $offset, callable $callback)

void uv_fs_mkdir(resource $loop, string $path, long $mode, callable $callback)

void uv_fs_rmdir(resource $loop, string $path, callable $callback)

void uv_fs_unlink(resource $loop, string $path, callable $callback)

void uv_fs_rename(resource $loop, string $from, string $to, callable $callback)

void uv_fs_utime(resource $loop, string $path, long $utime, long $atime, callable $callback)

void uv_fs_futime(resource $loop, zval $fd, long $utime, long $atime callable $callback)

void uv_fs_chmod(resource $loop, string $path, long $mode, callable $callback)

void uv_fs_fchmod(resource $loop, zval $fd, long $mode, callable $callback)

void uv_fs_chown(resource $loop, string $path, long $uid, long $gid, callable $callback)

void uv_fs_fchown(resource $loop, zval $fd, long $uid, $long $gid, callable $callback)

void uv_fs_link(resource $loop, string $from, string $to, callable $callback)

void uv_fs_symlink(resource $loop, string $from, string $to, long $flags, callable $callback)

void uv_fs_readlink(resource $loop, string $path, callable $callback)

void uv_fs_stat(resource $loop, string $path, callable $callback)

void uv_fs_lstat(resource $loop, string $path, callable $callback)

void uv_fs_fstat(resource $loop, zval $fd, callable $callback)

uv_fs_readdir(resource $loop, string $path, long $flags, callable $callback)

void uv_fs_sendfile(resource $loop, zval $in_fd, zval $out_fd, long $offset, long $length, callable $callback)

resource uv_fs_event_init(resource $loop, string $path, callable $callback, long $flags = 0)

resource uv_tty_init(resource $loop, zval $fd, long $readable)

long uv_tty_get_winsize(resource $tty, long &$width, long &$height)

long uv_tty_set_mode(resource $tty, long $mode)

void uv_tty_reset_mode(void)

string uv_tcp_getsockname(resource $uv_sockaddr)

string uv_tcp_getpeername(resource $uv_sockaddr)

string uv_udp_getsockname(resource $uv_sockaddr)

long uv_resident_set_memory(void)

string uv_ip4_name(resource uv_sockaddr $address)

string uv_ip6_name(resource uv_sockaddr $address)

uv uv_poll_init([resource $uv_loop], zval fd)

Description

initialize poll

Parameters

resource $uv_loop: uv_loop resource.

mixed $fd: this expects long fd, PHP's stream or PHP's socket resource.

Return Value

resource uv: uv resource which initialized poll.

Example

<?php
$fd = fopen("php://stdout","w+");

$poll = uv_poll_init(uv_default_loop(), $fd);

Note

• if you want to use a socket. please use uv_poll_init_socket instead of this. Windows can't handle socket with this function.

uv uv_poll_init_socket([resource $uv_loop], zval fd)

uv uv_poll_start(resource $handle, $events, $callback)

Description

start polling

Parameters

resource $poll: uv poll resource.

long $events: UV::READBLE and UV::WRITABLE flags.

callable $callback: this callback parameter expects (resource $poll, long $status, long $events, mixed $connection). the connection parameter passes uv_poll_init'd fd.

Return Value

void:

Example

<?php
$fd = fopen("php://stdout","w+");

$poll = uv_poll_init(uv_default_loop(), $fd);
uv_poll_start($poll, UV::WRITABLE, function($poll, $stat, $ev, $conn){
        fwrite($conn, "Hello");
        fclose($conn);
        uv_poll_stop($poll);
});

uv_run();

Note

• if you want to use a socket. please use uv_poll_init_socket instead of this. Windows can't handle socket with this function.

void uv_poll_stop(resource $poll)

uv uv_fs_poll_init([resource $uv_loop])

uv uv_fs_poll_start(resource $handle, $callback, string $path, long $interval)

void uv_fs_poll_stop(resource $poll)

resource uv_http_parser_init(long $target = UV::HTTP_REQUEST)

Description

initialize http parser.

Parameters

long $target: this expects UV::HTTP_REQUEST, UV::HTTP_RESPONSE or UV::HTTP_BOTH.

Return Value

resource uv_http:

Example

<?php
$parser = uv_http_parser_init(UV::HTTP_REQUEST);

bool uv_http_parser_execute(resource $parser, string $body, array &$result)

Description

execute http parser.

Parameters

resource $parser: uv_http_parser resoruce.

string $body: http message.

array &$result: result array.

Return Value

bool finished: this parser returns false when specified http message is invalid or not enough message.

Example

<?php
$parser = uv_http_parser_init(UV::HTTP_REQUEST);
if (uv_http_parser_execute($parser, "GET /img/http-parser.png?key=value#frag HTTP/1.1
Host: chobie.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:12.0) Gecko/20100101 Firefox/12.0
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Referer: http://chobie.net/
Cookie: key=value
Cache-Control: max-age=0

",$result)) {
	var_dump($result);
//array(6) {
//  ["headers"]=>
//  array(8) {
//    ["Host"]=>
//    string(10) "chobie.net"
//    ["User-Agent"]=>
//    string(81) "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:12.0) Gecko/20100101 Firefox/12.0"
//    ["Accept-Language"]=>
//    string(14) "en-us,en;q=0.5"
//    ["Accept-Encoding"]=>
//    string(13) "gzip, deflate"
//    ["Connection"]=>
//    string(10) "keep-alive"
//    ["Referer"]=>
//    string(18) "http://chobie.net/"
//    ["Cookie"]=>
//    string(9) "key=value"
//    ["Cache-Control"]=>
//    string(9) "max-age=0"
//  }
//  ["QUERY_STRING"]=>
//  string(35) "/img/http-parser.png?key=value#frag"
//  ["path"]=>
//  string(20) "/img/http-parser.png"
//  ["query"]=>
//  string(9) "key=value"
//  ["fragment"]=>
//  string(4) "frag"
//  ["REQUEST_METHOD"]=>
//  string(3) "GET"
//}
}