PHP simple captcha


PHP용 심플 captcha


https://github.com/claviska/simple-php-captcha


thx to Cory LaViska.


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<?
session_start();
include("simple-php-captcha.php");
 
$PREV_Captcha = $_SESSION['captcha']['code'];
$POST_Captcha = $_POST['captcha'];
if ( !empty($PREV_Captcha) && !empty($POST_Captcha) )
{
    if( strcasecmp($PREV_Captcha, $POST_Captcha) != 0 )
    {
        echo "<script>alert('이미지에 출력된 글자와 다릅니다.');</script>";
    }else{
        echo "<script>alert('정상');</script>";
    }
}//end if
 
$_SESSION['captcha'] = simple_php_captcha();
?>
 
<!DOCTYPE html>
<html lang="en">
<head>
    <!-- meta -->
    <meta name="Author" content="serpiko@hanmail.net" />
    <meta name="description" content="http://serpiko.tistory.com" />
 
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0" />
    <meta name="format-detection" content="telephone=no" />
     
    <!-- link -->
    <link rel="stylesheet" type="text/css" href="" />
 
    <!-- script -->
    <script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
    <title>Document</title>
    <style>
        * {
            box-sizing: border-box;
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box;
        }
    </style>
</head>
<body>
    <div id="wrap">
        <form method='post' action='<?=$PHP_SELF?>'>
            PREV_Captcha : <input type='text' size='100' value='<?=$PREV_Captcha?>' /> <br />
            POST_Captcha : <input type='text' name='' size='100' value='<?=$POST_Captcha?>' /> <br /><br />
     
            할당된 캡챠<br />
            <img src="<?=$_SESSION['captcha']['image_src']?>" style='width:100px;border:1px solid blue;border-radius:7px;' /><br /><br />
                 
            사용자 캡챠 입력<br />
            captcha : <input type='text' size='100' name='captcha' value="" /> <br />
 
            <button type='submit'>확인</button>
        </form>
    </div>
 
</body>
</html>


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출처: http://serpiko.tistory.com/589 [삽SAP(Study And Programming) 질 블로그. by허정진]

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