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CLI SAPI 提供了一个内置的Web服务器。
这个内置的Web服务器主要用于本地开发使用，不可用于线上产品环境。
URI请求会被发送到PHP所在的的工作目录（Working Directory）进行处理，除非你使用了-t参数来自定义不同的目录。
如果请求未指定执行哪个PHP文件，则默认执行目录内的index.php 或者 index.html。如果这两个文件都不存在，服务器会返回404错误。
当你在命令行启动这个Web Server时，如果指定了一个PHP文件，则这个文件会作为一个“路由”脚本，意味着每次请求都会先执行这个脚本。如果这个脚本返回 false ，那么直接返回请求的文件（例如请求静态文件不作任何处理）。否则会把输出返回到浏览器。
示例 #1 启动Web服务器
$ cd ~/public_html $ php -S localhost:8000
终端窗口会显示:
PHP 5.4.0 Development Server started at Thu Jul 21 10:43:28 2011 Listening on localhost:8000 Document root is /home/me/public_html Press Ctrl-C to quit
接着访问http://localhost:8000/和http://localhost:8000/myscript.html，窗口会显示：
PHP 5.4.0 Development Server started at Thu Jul 21 10:43:28 2011 Listening on localhost:8000 Document root is /home/me/public_html Press Ctrl-C to quit. [Thu Jul 21 10:48:48 2011] ::1:39144 GET /favicon.ico - Request read [Thu Jul 21 10:48:50 2011] ::1:39146 GET / - Request read [Thu Jul 21 10:48:50 2011] ::1:39147 GET /favicon.ico - Request read [Thu Jul 21 10:48:52 2011] ::1:39148 GET /myscript.html - Request read [Thu Jul 21 10:48:52 2011] ::1:39149 GET /favicon.ico - Request read
示例 #2 启动时指定根目录
$ cd ~/public_html $ php -S localhost:8000 -t foo/
终端窗口显示：
PHP 5.4.0 Development Server started at Thu Jul 21 10:50:26 2011 Listening on localhost:8000 Document root is /home/me/public_html/foo Press Ctrl-C to quit
示例 #3 使用路由（Router）脚本
请求图片直接显示图片，请求HTML则显示“Welcome to PHP”
<?php
// router.php
if (preg_match('/\.(?:png|jpg|jpeg|gif)$/', $_SERVER["REQUEST_URI"]))
return false; // 直接返回请求的文件
else {
echo "<p>Welcome to PHP</p>";
}
?>
$ php -S localhost:8000 router.php
执行之后终端显示：
PHP 5.4.0 Development Server started at Thu Jul 21 10:53:19 2011 Listening on localhost:8000 Document root is /home/me/public_html Press Ctrl-C to quit. [Thu Jul 21 10:53:45 2011] ::1:55801 GET /mylogo.jpg - Request read [Thu Jul 21 10:53:52 2011] ::1:55803 GET /abc.html - Request read [Thu Jul 21 10:53:52 2011] ::1:55804 GET /favicon.ico - Request read
示例 #4 Checking for CLI Web Server Use
To reuse a framework router script during development with the CLI web server and later also with a production web server:
<?php
// router.php
if (php_sapi_name() == 'cli-server') {
/* route static assets and return false */
}
/* go on with normal index.php operations */
?>
$ php -S localhost:8000 router.php
示例 #5 Handling Unsupported File Types
If you need to serve a static resource whose MIME type is not handled by the CLI web server, use:
<?php
// router.php
$path = pathinfo($_SERVER["SCRIPT_FILENAME"]);
if ($path["extension"] == "el") {
header("Content-Type: text/x-script.elisp");
readfile($_SERVER["SCRIPT_FILENAME"]);
}
else {
return FALSE;
}
?>
$ php -S localhost:8000 router.php
示例 #6 Accessing the CLI Web Server From Remote Machines
You can make the web server accessible on port 8000 to any interface with:
$ php -S 0.0.0.0:8000
The built-in Web Server should not be used on a public network.
