PHP Simulation in ASP Response class implementation method, Aspresponse_php tutorial

PHP simulates the Response class implementation method in ASP, Aspresponse

In this paper, we describe the method of PHP simulating response class in ASP. Share to everyone for your reference. Specific as follows:

Used to ASP or ASP, they will often use the response class, this class is used to handle the client's response, can achieve jump, output and other functions. There is no such class in PHP, but it is true that the class can be modeled by a function.

/* Class Purpose: Implements Response function similar to ASP */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: '. $url);   Exit     The Public Function setoutput ($output, $level = 0) {$this->output = $output;   $this->level = $level; } Private Function Compress ($data, $level = 0) {if (Isset ($_server[' http_accept_encoding ')) && (Strpos ($_se     rver[' http_accept_encoding '], ' gzip ')!== FALSE) {$encoding = ' gzip '; } if (Isset ($_server[' http_accept_encoding ') && (Strpos ($_server[' http_accept_encoding '], ' x-gzip ')!== fals     E) {$encoding = ' x-gzip ';     } if (!isset ($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, $this->le     VEL);     } else {$ouput = $this->output; } if (!headers_sent ()) {foreach ($this->headers as $key = + $value) {header ($key. ': ' .       $value);   }} echo $ouput; } }

I hope this article is helpful to everyone's PHP programming.

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