应用php模拟http请求

// Returns array with headers in $response[0] and body in $response[1]
function http_post($request, $host, $path, $port = 80, $ip=null) {
	
		$http_request  = "POST $path HTTP/1.0\r\n";
		$http_request .= "Host: $host\r\n";
		$http_request .= 'Content-Type: application/x-www-form-urlencoded; charset=' . get_option('blog_charset') . "\r\n";
		$http_request .= "Content-Length: {$content_length}\r\n";
		$http_request .= "User-Agent: {$akismet_ua}\r\n";
		$http_request .= "\r\n";
		$http_request .= $request;
		
		$response = '';
		if( false != ( $fs = @fsockopen( $http_host, $port, $errno, $errstr, 10 ) ) ) {
			fwrite( $fs, $http_request );

			while ( !feof( $fs ) )
				$response .= fgets( $fs, 1160 ); // One TCP-IP packet
			fclose( $fs );
			$response = explode( "\r\n\r\n", $response, 2 );
		}
		return $response;
	
}