使用 PHP 7 给 Web 应用加速
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使用 PHP 7 给 Web 应用加速
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PHP 20周年了！？？
PHP 首發(fā)通告，1995年6月8日
發(fā)布于 COMP.INFOSYSTEMS.WWW.AUTHORING.CGI
主題：正式宣布：個(gè)人主頁工具（Personal Home Page Tools）正式宣布個(gè)人主頁工具（PHP 工具）1.0 版本此工具是一組用 C 語言寫的輕量的 cgi 二進(jìn)制文件。他們能運(yùn)行許多功能，包括：在你的私有日志文件記錄頁面訪問情況
實(shí)時(shí)查看日志信息
提供查看日志信息的友好接口
在你的頁面展示最近一次的訪問信息
完整的每天及總體訪問統(tǒng)計(jì)
依據(jù)用戶的域名限制其訪問
依據(jù)用戶的域名為頁面提供密碼保護(hù)
依據(jù)用戶的電子郵箱地址追蹤其訪問情況
支持追蹤引薦 URL 的 HTTP_REFERER
無需服務(wù)器支持即可運(yùn)行 SSI (server-side includes)
支持不記錄特定域名（比如，你自己的）的訪問信息
輕易地創(chuàng)建并展示表格
-
支持在后續(xù)的文檔中使用表格信息
使用該工具，你不需要：
你不需要訪問根目錄——工具安裝在 ~/public_html 目錄
你不需要在服務(wù)器啟用 SSI (server-side includes)
你不需要使用 Perl 或 Tcl 或其他任何腳本解釋器
-
你不需要訪問 httpd 日志文件
使用該工具的唯一條件是你能夠運(yùn)行自己的 cgi 程序。如果你不知道這是什么意思，可以詢問系統(tǒng)管理員。
借助該工具，你還可以在兩分鐘內(nèi)實(shí)現(xiàn)留言板，或其他任何用于寫入信息并向訪客展示的表格。
該工具不受版權(quán)限制，遵循 GNU 公共許可證。是的！該工具完全免費(fèi)！
查看該工具的完整演示，請?jiān)L問：http://www.io.org/~rasmus。
--
Rasmus Lerdorf
rasmus@io.org
http://www.io.org/~rasmus
用于 Web 應(yīng)用的 C API
void Cos(void) { Stack *s; char temp[64];s = Pop(); if(!s) {Error("Stack error in cos");return; } sprintf(temp,"%f",cos(s->douval)); Push(temp,DNUMBER); }于是乎，你可以這樣使用它：
<html><head><title>Cos Example</title></head> <body><h1>Cos Example</h1> <?echo Cos($input)> </body></html>PHP7
? 引擎提升
現(xiàn)實(shí)世界中的大多數(shù)應(yīng)用程序都能獲得 100% 以上的性能提升
內(nèi)存使用量更低
原生線程本地儲(chǔ)存
? 持久的以文件為基礎(chǔ)的二級緩存 OPCache
; --enable-opcache-file; php.iniopcache.file_cache=/var/tmp; php-cli.iniopcache.enable_cli=1opcache.file_cache=/var/tmpopcache.file_cache_only=1 $ time composer >/dev/nullreal 0m0.040suser 0m0.032ssys 0m0.004s$ time composer >/dev/nullreal 0m0.019suser 0m0.016ssys 0m0.000s$ time php -d opcache.enable=0 /usr/local/bin/composer >/dev/nullreal 0m0.033suser 0m0.032ssys 0m0.000s /var/tmp├── 7eeb6fe88104116c27c5650ddd83abf0│ └── usr│ └── local│ └── bin│ └── composer.bin└── 7eeb6fe88104116c27c5650ddd83abf0phar:└── usr└── local└── bin└── composer├── bin│ └── composer.bin├── src│ ├── bootstrap.php.bin│ └── Composer│ ├── Command│ │ ├── AboutCommand.php.bin│ │ ├── ArchiveCommand.php.bin│ │ ├── ClearCacheCommand.php.bin│ │ ├── Command.php.bin│ │ ├── ConfigCommand.php.bin│ │ ├── CreateProjectCommand.php.bin│ │ ├── DependsCommand.php.bin│ │ ├── DiagnoseCommand.php.bin│ │ ├── DumpAutoloadCommand.php.bin│ │ ├── GlobalCommand.php.bin│ │ ├── Helper│ │ │ └── DialogHelper.php.bin│ │ ├── HomeCommand.php.bin│ │ ├── InitCommand.php.bin│ │ ├── InstallCommand.php.bin│ │ ├── LicensesCommand.php.bin│ │ ├── RemoveCommand.php.bin│ │ ├── RequireCommand.php.bin│ │ ├── RunScriptCommand.php.bin│ │ ├── SearchCommand.php.bin│ │ ├── SelfUpdateCommand.php.bin│ │ ├── ShowCommand.php.bin│ │ ├── StatusCommand.php.bin│ │ ├── UpdateCommand.php.bin│ │ └── ValidateCommand.php.bin│ ├── Composer.php.bin│ ├── Console│ │ └── Application.php.bin│ ├── Factory.php.bin│ ├── IO│ │ ├── BaseIO.php.bin│ │ ├── ConsoleIO.php.bin│ │ └── IOInterface.php.bin│ ├── Package│ │ ├── BasePackage.php.bin│ │ └── PackageInterface.php.bin│ ├── Script│ │ └── ScriptEvents.php.bin│ └── Util│ └── ErrorHandler.php.bin└── vendor├── autoload.php.bin├── composer│ ├── autoload_classmap.php.bin│ ├── autoload_namespaces.php.bin│ ├── autoload_psr4.php.bin│ ├── autoload_real.php.bin│ └── ClassLoader.php.bin└── symfony└── console└── Symfony└── Component└── Console├── Application.php.bin├── Command│ ├── Command.php.bin│ ├── HelpCommand.php.bin│ └── ListCommand.php.bin├── Descriptor│ ├── ApplicationDescription.php.bin│ ├── DescriptorInterface.php.bin│ ├── Descriptor.php.bin│ ├── JsonDescriptor.php.bin│ ├── MarkdownDescriptor.php.bin│ ├── TextDescriptor.php.bin│ └── XmlDescriptor.php.bin├── Formatter│ ├── OutputFormatterInterface.php.bin│ ├── OutputFormatter.php.bin│ ├── OutputFormatterStyleInterface.php.bin│ ├── OutputFormatterStyle.php.bin│ └── OutputFormatterStyleStack.php.bin├── Helper│ ├── DebugFormatterHelper.php.bin│ ├── DescriptorHelper.php.bin│ ├── DialogHelper.php.bin│ ├── FormatterHelper.php.bin│ ├── HelperInterface.php.bin│ ├── Helper.php.bin│ ├── HelperSet.php.bin│ ├── InputAwareHelper.php.bin│ ├── ProcessHelper.php.bin│ ├── ProgressHelper.php.bin│ ├── QuestionHelper.php.bin│ ├── TableHelper.php.bin│ ├── Table.php.bin│ └── TableStyle.php.bin├── Input│ ├── ArgvInput.php.bin│ ├── ArrayInput.php.bin│ ├── InputArgument.php.bin│ ├── InputAwareInterface.php.bin│ ├── InputDefinition.php.bin│ ├── InputInterface.php.bin│ ├── InputOption.php.bin│ └── Input.php.bin└── Output├── ConsoleOutputInterface.php.bin├── ConsoleOutput.php.bin├── NullOutput.php.bin├── OutputInterface.php.bin├── Output.php.bin└── StreamOutput.php.bin32 級目錄, 87 個(gè)文件
? 抽象語法樹！！
echo substr("abc", [1,2]); % phan -a test.phpAST_STMT_LIST @ 10: AST_STMT_LIST @ 20: AST_ECHO @ 20: AST_CALL @ 20: AST_NAME @ 2flags: NAME_NOT_FQ (1)0: "substr"1: AST_ARG_LIST @ 20: "abc"1: AST_ARRAY @ 20: AST_ARRAY_ELEM @ 2flags: 00: 11: null1: AST_ARRAY_ELEM @ 2flags: 00: 21: null % phan -a test.phptest.php:2 TypeError arg#2(start) is int[] but substr() takes int? 返回類型
function get_config(): array {return 42; } get_config();// 可捕獲的致命錯(cuò)誤：get_config() 的返回值必須是數(shù)組類型，此處返回了整數(shù)。? 強(qiáng)制標(biāo)量類型
function logmsg(string $msg, int $level, float $severity) {var_dump($msg); // string(1) "1"var_dump($level); // int(2)var_dump($severity); // float(3) } logmsg(1, "2.5", 3);? 嚴(yán)格標(biāo)量類型
declare(strict_types=1);logmsg(1, "2.5", 3); 致命錯(cuò)誤：傳給 logmsg() 的首個(gè)參數(shù)必須是字符串類型，此處是整型。? 匿名類
return new class($controller) implements Page {public function __construct($controller) {/* ... */}/* ... */ };class MyObject extends MyStuff {public function getInterface() {return new class implements MyInterface {/* ... */};} }? Null 合并操作符
$a = NULL; $b = 1; $c = 2;echo $a ?? $b; // 1 echo $c ?? $b; // 2 echo $a ?? $b ?? $c; // 1 echo $a ?? $x ?? $c; // 2? 飛船操作符 (Spaceship Operator)
|=| Tie Fighter k=k Tie Interceptor <==> Tie Bomber <=> Tie Advanced X1 ? function cmp_php5($a, $b) {return ($a < $b) ? -1 : (($a >$b) ? 1 : 0); }function cmp_php7($a, $b) {return $a <=> $b; }? 致命錯(cuò)誤中的特例
function call_method($obj) {$obj->method(); }call_method(null); // 致命錯(cuò)誤：非對象調(diào)用了成員函數(shù) method() try {call_method(null); } catch (EngineException $e) {echo "Exception: {$e->getMessage()}\n"; } // Exception: Call to a member function method() on a non-object //特例：非對象調(diào)用了成員函數(shù) method()? 零成本斷言
function test($arg) {assert($arg > 20 && $arg < 110, "$arg is invalid"); } ini_set('zend.assertions',0); test(16); ini_set('zend.assertions',1); test(17); ini_set('assert.exception',1); test(18); Warning: assert(): 17 is invalid failed in /home/rasmus/assert.php on line 3 Fatal error: Uncaught AssertionError: 18 is invalid in /home/rasmus/assert.php:3 Stack trace: #0 /home/rasmus/assert.php(3): assert(false, '18 is invalid') #1 /home/rasmus/assert.php(13): test(18) #2 {main}thrown in /home/rasmus/assert.php on line 3 ; Completely skip compiling assert() calls ; (can only be set in php.ini) zend.assertions = -1? 新增 Closure::call()
$f = function () {return $this->n; }; class MyClass {private $n = 42; } $myC = new MyClass; $c = $f->bindTo($myC, "MyClass"); $c(); $f = function () {return $this->n; }; class MyClass {private $n = 42; } $myC = new MyClass; $f->call($myC);? 移除諸多棄用功能
(PHP 4 代碼將會(huì)崩潰！) - ext/ereg (use ext/pcre instead) - preg_replace() eval modifier (use preg_replace_callback() instead) - ext/mysql (use ext/mysqli or ext/pdo_mysql instead) - Assignment of new by reference - Scoped calls of non-static methods from incompatible $this context- dl() in php-fpm - set_magic_quotes_runtime() and magic_quotes_runtime() - set_socket_blocking() (use stream_set_blocking() instead) - mcrypt_generic_end() (use mcrypt_generic_deinit() instead) - mcrypt_ecb, mcrypt_cbc, mcrypt_cfb and mcrypt_ofb (use mcrypt_encrypt() and mcrypt_decrypt() instead) - datefmt_set_timezone_id() and IntlDateFormatter::setTimeZoneID() (use datefmt_set_timezone() or IntlDateFormatter::setTimeZone() instead)- xsl.security_prefs (use XsltProcessor::setSecurityPrefs() instead) - iconv.input_encoding, iconv.output_encoding, iconv.internal_encoding,mbstring.http_input, mbstring.http_output and mbstring.internal_encoding(use php.input_encoding, php.internal_encoding and php.output_encoding instead)- $is_dst parameter of the mktime() and gmmktime() functions - # style comments in ini files (use ; style comments instead) - String category names in setlocale() (use LC_* constants instead) - Unsafe curl file uploads (use CurlFile instead) - PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT driver option (use PDO::ATTR_EMULATE_PREPARES instead) - CN_match and SNI_server_name stream context option (use peer_name instead)? 新的保留字：
bool
int
float
string
null
false
true
resource
object
mixed
numeric
? Windows 系統(tǒng)下支持64位整數(shù)
? 清除邊緣情況下整型溢出/下溢、
? 在64位版本中支持長度大于 2^31 字節(jié)的字符串
? 無效數(shù)值型解析錯(cuò)誤
$mask = 0855; // 解析錯(cuò)誤：無效的數(shù)值型? 統(tǒng)一變量語法
// 從左到右 $this->$belongs_to['column'] // 從右到左 $this->{$belongs_to['column']}// 支持缺失的操作組合 $foo()['bar']() [$obj1, $obj2][0]->prop getStr(){0}// 支持嵌套的 :: $foo['bar']::$baz $foo::$bar::$baz $foo->bar()::baz()// 支持嵌套的 () foo()() $foo->bar()() Foo::bar()() $foo()()// 支持對任意(...)表達(dá)式的操作 (...)['foo'] (...)->foo (...)->foo() (...)::$foo (...)::foo() (...)()// 針對上一點(diǎn)，兩個(gè)更加實(shí)用的例子 (function() { ... })() ($obj->closure)()// 支持對 dereferencable 標(biāo)量的所有操作 // (用處不是很大) "string"->toLower() [$obj, 'method']() 'Foo'::$bar echo preg_replace('/:-:(.*?):-:/e', '$this->pres->\\1', $text); echo preg_replace_callback('/:-:(.*?):-:/', function($matches) {return $this->pres->$matches[1]; // Oops!},$text); % phan -b display.php Files scanned: 1 Time: 0.13s Classes: 8 Methods: 55 Functions: 5 Closures: 5 Traits: 0 Conditionals: 307 Issues found: 1display.php:416 CompatError expression may not be PHP 7 compatible echo preg_replace_callback('/:-:(.*?):-:/', function($matches) {return $this->pres->{$matches[1]}; // Ok},$text);? Unicode 碼點(diǎn)轉(zhuǎn)義語法
echo "\u{202E}Right-to-left text";echo "\u{1F602}";?Right-to-left text?
? ICU IntlChar 類加入 intl 擴(kuò)展
通用版本預(yù)計(jì)在2015年10月發(fā)布
針對 Wordpress-3.6.0 首頁100次請求的耗時(shí)與機(jī)器指令數(shù)量
zval 的大小從24字節(jié)減小到16字節(jié)
哈希表大小從72字節(jié)減小到56字節(jié)
哈希表 bucket 大小從72字節(jié)減小到32字節(jié)
定長數(shù)組優(yōu)化
CPU 緩存更大更友好
與 jemalloc 相似的內(nèi)存分配器
更快的哈希表迭代 API
數(shù)組復(fù)制優(yōu)化
默認(rèn)啟用 PCRE JIT
快速的 ZPP (ZendParseParameters) 執(zhí)行
更快的棧分配 zvals（而不是堆）
優(yōu)化的 VM 調(diào)用
gcc 4.8+ 中的全局寄存器變量
加上數(shù)百處微優(yōu)化
運(yùn)行時(shí)編譯執(zhí)行(JIT)？
謊話，彌天大謊，還有基準(zhǔn)測試
測試箱規(guī)格
Gigabyte Z87X-UD3H i7-4771 4 cores @ 3.50GHz w/ 16G of Ram @ 1600MHz
啟用超線程的八個(gè)虛擬核
Toshiba THNSNHH256GBST SSD
Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13) x86_64 GNU/Linux
MySQL 5.6.24
如無特別指出，所有測試使用 nginx-1.6.2 + php-fpm
本地 100Mbps 網(wǎng)絡(luò)連接
對獨(dú)立機(jī)器進(jìn)行圍攻基準(zhǔn)測試（siege benchmark）
所有 PHP 版本均在本地使用 gcc-4.9.2 -O2 編譯
配置標(biāo)志
./configure --disable-debug --with-apxs2=/usr/bin/apxs2 \--enable-zend-signals --with-gd \--without-pear --with-jpeg-dir=/usr \--with-png-dir=/usr --with-vpx-dir=/usr \--with-t1lib=/usr --with-freetype-dir=/usr \--enable-exif --enable-gd-native-ttf \--with-zlib --with-mysql=/usr \--with-gmp --with-zlib-dir=/usr \--with-gettext --with-kerberos \--with-imap-ssl --with-mcrypt=/usr/local \--with-iconv --enable-sockets \--with-openssl --with-pspell \--with-pdo-sqlite --with-pdo-mysql=mysqlnd \--enable-soap --enable-xmlreader \--enable-phar=shared --with-xsl \--enable-ftp --enable-cgi \--with-curl=/usr --with-tidy \--with-xmlrpc --enable-mbstring \--enable-sysvsem --enable-sysvshm \--enable-shmop --with-readline \--enable-pcntl --enable-fpm \--enable-intl --enable-zip \--with-imap --with-mysqli=mysqlnd \--enable-calendar --prefix=/usr/local \--with-mysql-sock=/var/run/mysqld/mysqld.sock \--with-config-file-scan-dir=/etc/php7/conf.d \--with-config-file-path=/etc/php7php.ini
[PHP] zend.multibyte=On date.timezone="America/Los_Angeles" display_startup_errors=On zend.enable_gc=Off include_path="/usr/local/lib/php" default_charset="UTF-8" error_reporting=-1variables_order=GPCS sendmail_path=""max_execution_time=60 memory_limit=512M post_max_size=1024M cgi.force_redirect=0 cgi.fix_pathinfo=1magic_quotes=0 magic_quotes_gpc=0 user_ini.filename= realpath_cache_size=2M cgi.check_shebang_line=0max_input_vars=1000 max_file_uploads=50zend_extension=opcache.so opcache.enable=1 opcache.memory_consumption=256 opcache.interned_strings_buffer=8 opcache.max_accelerated_files=10000 opcache.revalidate_freq=60 opcache.fast_shutdown=1 opcache.enable_cli=1php-fpm.d/www.conf
[www] user = www-data group = www-data listen = /var/run/php-fpm.sock listen.owner = www-data listen.group = www-data listen.mode = 0660pm = static pm.max_children = 10 pm.status_path = /status ping.path = /ping ping.response = pongnginx.conf
user www-data; worker_processes 4; pid /var/run/nginx.pid;events {worker_connections 768; }http {sendfile on;tcp_nopush on;tcp_nodelay on;keepalive_timeout 65;types_hash_max_size 2048;include /etc/nginx/mime.types;default_type application/octet-stream;access_log /var/log/nginx/access.log;error_log /var/log/nginx/error.log;gzip on;gzip_disable "msie6";include /etc/nginx/conf.d/*.conf;include /etc/nginx/sites-enabled/*; }php.conf
location ~ \.php {include fastcgi_params;fastcgi_keep_conn on;fastcgi_index index.php;fastcgi_split_path_info ^(.+\.php)(/.+)$;fastcgi_param PATH_INFO $fastcgi_path_info;fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;fastcgi_intercept_errors on;fastcgi_pass unix:/var/run/php-fpm.sock; }hhvm.conf
location ~ \.php$ {include fastcgi_params;fastcgi_keep_conn on;fastcgi_pass unix:/var/run/hhvm/server.sock;fastcgi_index index.php;fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; }sites-enabled/wordpress
server {listen 80;server_name wordpress;root /var/www/wordpress;access_log /var/log/nginx/wordpress-access.log;error_log /var/log/nginx/wordpress-error.log;location / {index index.html index.htm index.php;autoindex on;}location ~ /\. { return 403; }include backend.conf; }HipHop VM 3.7.0 (rel) from http://dl.hhvm.com/ubuntu
server.ini
pid = /var/run/hhvm/pid hhvm.server.file_socket = /var/run/hhvm/server.sock hhvm.server.type = fastcgi hhvm.server.default_document = index.php hhvm.log.use_log_file = true hhvm.log.file = /var/log/hhvm/error.log hhvm.repo.central.path = /var/run/hhvm/hhvm.hhbcphp.ini
session.save_handler = files session.save_path = /var/lib/php5 session.gc_maxlifetime = 1440hhvm.log.level = Warning hhvm.log.always_log_unhandled_exceptions = true hhvm.log.runtime_error_reporting_level = 8191 hhvm.mysql.typed_results = falseDrupal 8-git
Wordpress-4.1.1
http://wordpress/?p=1
GCC 反饋制導(dǎo)優(yōu)化(Feedback-Directed Optimization, FDO)
$ make clean $ make -j8 prof-gen ... $ sapi/cgi/php-cgi -T 1000 /var/www/wordpress/index.php > /dev/null $ make prof-clean $ make -j8 prof-useWordpress-4.1.1
http://wordpress/?p=1
phpBB 3.1.3
http://phpbb/viewforum.php?f=2
MediaWiki 1.24.1
默認(rèn)首頁
Opencart 2.0.2.0
默認(rèn)安裝下的首頁
WardrobeCMS 1.2.0
包含一篇短文的首頁
Geeklog 2.1.0
默認(rèn)首頁
Magento-1.9.1.1
http://magento/index.php/sale.html (sample data)
Traq 3.5.2
http://traq/test/tickets/1
Had to fix one line of code in the Avalon database library:
diff --git a/database/model.php b/database/model.php index 6c5f7da..c93e726 100644 --- a/database/model.php +++ b/database/model.php @@ -397,7 +397,7 @@ public function __get($var) {$belongs_to['column'] = $var . '_id';}$model = $belongs_to['model']; - return $this->$var = $model::find($belongs_to['foreign_key'], $this->$belongs_to['column']); + return $this->$var = $model::find($belongs_to['foreign_key'], $this->{$belongs_to['column']});} else {$val = $this->$var;Cachet
包含一件事件的首頁
Moodle-2.9-dev
點(diǎn)擊默認(rèn)的首頁
ZenCart 1.5.4
包含演示數(shù)據(jù)的首頁
OneAPM for PHP 能夠深入到所有 PHP 應(yīng)用內(nèi)部完成應(yīng)用性能管理和監(jiān)控，包括代碼級別性能問題的可見性、性能瓶頸的快速識別與追溯、真實(shí)用戶體驗(yàn)監(jiān)控、服務(wù)器監(jiān)控和端到端的應(yīng)用性能管理。
幫我們一起測試!
它真的簡單易用！
安裝 Vagrant 與 Virtualbox
之后:
$ git clone https://github.com/rlerdorf/php7dev.git$ cd php7dev$ vagrant up ... (takes a bit - it is downloading 1.5G)$ vagrant ssh它會(huì) NAT, DHCP 并產(chǎn)生固定的地址 192.168.7.7
http://192.168.7.7/ 會(huì)展示 PHP 7 的 phpinfo() 頁面。
現(xiàn)在，你的開發(fā)環(huán)境就部署好啦。
切換 PHP 版本比較繁雜：
vagrant@php7dev:~$ newphp 56 Activating PHP 5.6.6-dev and restarting php-fpmvagrant@php7dev:~$ newphp 7 debug Activating PHP 7.0.0-dev and restarting php-fpm20 個(gè)預(yù)編譯的版本
/usr/local/php53 /usr/local/php54-zts /usr/local/php56-debug-zts /usr/local/php53-debug /usr/local/php55 /usr/local/php56-zts /usr/local/php53-debug-zts /usr/local/php55-debug /usr/local/php70 /usr/local/php53-zts /usr/local/php55-debug-zts /usr/local/php70-debug /usr/local/php54 /usr/local/php55-zts /usr/local/php70-debug-zts /usr/local/php54-debug /usr/local/php56 /usr/local/php70-zts /usr/local/php54-debug-zts /usr/local/php56-debug構(gòu)建任意版本：
$ makephp 7 Build log in /tmp/build.log Building PHP 7.0 configuring... compiling... installing... done Building PHP 7.0-debug configuring... compiling... installing... done或手動(dòng)地
$ cd php-src $ git checkout PHP-5.6 $ git pull -r $ make distclean $ ./buildconf -f $ ./cn56 $ make $ sudo make installgithub.com/rlerdorf/php7dev
請向我們提交 bug！
原文鏈接 http://talks.php.net/taiwan15
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