PHP模拟asp中response类实现方法_php技巧
| 本文实例讲述了PHP模拟asp中response类的方法。分享给大家供大家参考。具体如下： 习惯了asp或是asp.net开发的人, 他们会经常用到response类,这个类用于处理客户端的响应,可以实现跳转,输出等功能. 在php中没有这个类,但是确实可以通过函数来模拟这个类. /* * 类用途: 实现类似于asp中的response功能 */final class Response { private $headers = array(); private $output; private $level = 0; public function addHeader($key, $value) { $this->headers[$key] = $value; } public function removeHeader($key) { if (isset($this->headers[$key])) { unset($this->headers[$key]); } } public function redirect($url) { header('Location: ' . $url); exit; } public function setOutput($output, $level = 0) { $this->output = $output; $this->level = $level; } private function compress($data, $level = 0) { if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) && (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE)) { $encoding = 'gzip'; } if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) && (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'x-gzip') !== FALSE)) { $encoding = 'x-gzip'; } if (!isset($encoding)) { return $data; } if (!extension_loaded('zlib') || ini_get('zlib.output_compression')) { return $data; } if (headers_sent()) { return $data; } if (connection_status()) { return $data; } $this->addHeader('Content-Encoding', $encoding); return gzencode($data, (int)$level); } public function output() { if ($this->level) { $ouput = $this->compress($this->output, $this->level); } else { $ouput = $this->output; } if (!headers_sent()) { foreach ($this->headers as $key => $value) { header($key . ': ' . $value); } } echo $ouput; } }希望本文所述对大家的php程序设计有所帮助。 |