메모장입니다.

/**
 * encrypt, decrypt 관련 함수
 *
 * @author     Yongseok Kang <wyseburn(at)gmail.com>
 * @since       2011. 7. 13.
 * @category   
 * @version     1.0
 */

define('ENC_KEY', 'enckey!@#$'); //키 값

/**
 * hex2bin
 * @param string $hexdata
 */
function hex2bin($hexdata) {
    $bindata="";
    for ($i=0,$cnt=strlen($hexdata);$i<$cnt;$i+=2) {
        $bindata .= chr(hexdec(substr($hexdata,$i,2)));
    }
    return $bindata;
}
/**
 * 키를 통해 암호화
 * @param string $str
 */
function m_encrypt($str) {
    return bin2hex(gzcompress(mcrypt_ecb(MCRYPT_RIJNDAEL_192, md5(ENC_KEY), $str, MCRYPT_ENCRYPT)));
}
/**
 * 키를 통해 복호화
 * @param string $str
 */
function m_decrypt($str) {
    return trim(mcrypt_ecb(MCRYPT_RIJNDAEL_192, md5(ENC_KEY), gzuncompress(hex2bin($str)), MCRYPT_DECRYPT));
}

<?php
/**
 * 웹페이지 소스 가져오는 함수
 *
 * @param text $url
 * @param array(
 *                  'method' => 'GET/POST',
 *                  'port' => 80,
 *                  'cookie'=> array (
 *                                      'key' => 'value',
 *                                      'key' => 'value'
 *                                  ),
 *                  'referer' => 'http://domain.com',
 *               ) $opt
 * @return array
 */
function getPageSource($url, $opt = array()) {
    
    $result = array('','');
    
    if(empty($opt)) {
        $opt['method'] = 'GET';
        $opt['port'] = 80;
    }
    else {
        if(isset($opt['method'])) {
            $opt['method'] = strtoupper($opt['method']);
            if($opt['method'] !== 'GET' && $opt['method'] !== 'POST') {
                exit("FUNCTION getPageSource ERROR : \$opt['method'] is only GET or POST");
            }
        }
        
        if(empty($opt['port'])) {
            $opt['port'] = 80;
        }
    }
    
    $url_info = parse_url($url);
    $fp = fsockopen($url_info['host'], $opt['port']);

    if(!$fp) {
        return array();
    }
    
    fputs($fp,$opt['method']." ".$url_info['path'].($opt['method'] === 'GET' && $url_info['query'] ? '?'.$url_info['query'] : '')." HTTP/1.0\r\n");
    fputs($fp,"Host: ".$url_info['host']."\r\n");
    fputs($fp,"User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)\r\n");
    
    if(isset($opt['referer'])) {
        fputs($fp,"Referer: ".$opt['referer']."\r\n");
    }
    
    if(isset($opt['cookie'])) {
        foreach($opt['cookie'] as $value => $key) {
            fputs($fp,"Cookie: ".$key."=".urlencode($value).";\r\n");
        }
    }
    
    if($opt['method'] === 'POST') {
        fputs($fp,"Content-Type: application/x-www-form-urlencoded\r\n");
        fputs($fp,"Content-Length: ".strlen($url_info['query'])."\r\n");
        fputs($fp,"Connection: close\r\n\r\n");
        fputs($fp,$url_info['query']);
    }
    else {
        fputs($fp,"Connection: close\r\n\r\n");
    }
    
    while(trim($buf = fgets($fp,1024))) {  //respose header 부분을 읽어옵니다.
        $result[0] .= $buf;
    }

    while(!feof($fp)) {  //response body 를 읽어옵니다.
        $result[1] .= fgets($fp,1024);
    }
    
    fclose($fp);
    
    return $result;
}
?>

<?php
require_once 'MDB2.php';

function dbDisconnect() {
    global $res,$db;

    if(isset($res)) {
        $res->free();
    }

    $db->disconnect();
}

function procPearError($arg) {
    $header  = 'MIME-Version: 1.0' . "\r\n";
    $header .= 'Content-type: text/html; charset=EUC-KR' . "\r\n";
    $header .= "From: 페이지오류 <임의메일주소>\r\n"; //optional headerfields
    $message = "<pre>http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']."\r\n\r\n".$arg->getUserInfo()."</pre>";
    @mail("메일주소", "Page error found", $message, $header);
    exit('DB 오류<BR /><BR /><pre>'.$arg->getUserInfo().'</pre><BR /><BR />계속 오류가 발생할경우 관리자에게 문의해주세요.<br /><br /><a href="javascript:history.back()">[뒤로가기]</a>');
}

// 페이지 종료시 처리할 콜백함수
register_shutdown_function('dbDisconnect');

// PEAR 오류시 처리할 콜백함수
PEAR::setErrorHandling(PEAR_ERROR_CALLBACK,'procPearError');

$dsn = '디비종류://아이디:비번@서버/데이타베이스명';

$options = array(
    'debug'       => 2, //실제 운영시 0
    'portability'    => MDB2_PORTABILITY_FIX_CASE
);

$db =& MDB2::factory($dsn, $options);
$db->setFetchMode(MDB2_FETCHMODE_ASSOC);
?>

	$smtp_id = "아이디"; 
	$smtp_pwd = "비번";
	$host = "아이피";
	
	$fp = fsockopen($host, 25, &$errno, &$errstr, 10);
	if(!$fp) {
		exit('메일오류 ['.$errno.'] '.$errstr);
	}
	fgets($fp, 128);  
	fputs($fp, "helo $host\r\n");  
	fgets($fp, 128);
	
	// 로긴
	fputs($fp, "auth login\r\n"); 
	fgets($fp,128); 
	fputs($fp, base64_encode($smtp_id)."\r\n"); 
	fgets($fp,128); 
	fputs($fp, base64_encode($smtp_pwd)."\r\n"); 
	fgets($fp,128); 
	
	fputs($fp, "mail from: <$from>\r\n");  
	$returnvalue[0] = fgets($fp, 128);  
	fputs($fp, "rcpt to: <$to>\r\n");  
	$returnvalue[1] = fgets($fp, 128); 
	fputs($fp, "data\r\n");  
	fgets($fp, 128);  
	fputs($fp, "Return-Path: $from\r\n");  
	fputs($fp, "From: \"$from\" <$from>\r\n");  

	fputs($fp, "To: <$to>\r\n");  
	fputs($fp, "Subject: $subject\r\n");  
	fputs($fp, "Content-Type: ".$type."; charset=\"euc-kr\"\r\n");  
	fputs($fp, "\r\n"); 
	
	//$body = chunk_split(base64_encode($body));  
	fputs($fp, $body);  
	fputs($fp, "\r\n");  
	fputs($fp, "\r\n.\r\n");  
	$returnvalue[2] = fgets($fp, 128);  
	fclose($fp); 
	//print_r($returnvalue);
	if (preg_match("/^250/", $returnvalue[0])&&preg_match("/^250/", $returnvalue[1])&&preg_match("/^250/", $returnvalue[2])) { 
		return true; 
	} 
	else {
		return false;
	}
}

if(sendmail('제목', '내용', '발신', '수신'))
	echo '성공';
else
	echo '실패';