3 {{ upvoteCount | shortNum }}
3 {{ upvoteCount | shortNum }}

How to use captcha in php?

by karthikaqpt
3 replies
How to use captcha in php?
#captcha #php
  • Profile picture of the author deepakgupta deepakgupta
    This is very simple program captcha in php you should go to google and search captcha in php and you got hundred and more link and resolved your problem
    {{ DiscussionBoard.errors[10611795].message }}
  • Profile picture of the author Jimmy Saini
    <?php
    session_start();
    include("./phptextClass.php");

    /*create class object*/
    $phptextObj = new phptextClass();
    /*phptext function to genrate image with text*/
    $phptextObj->phpcaptcha('#162453','#fff',120,40,10,25);
    ?>
    {{ DiscussionBoard.errors[10612846].message }}
  • Profile picture of the author wordpress+expert
    1. Create file "capcha.php":

    <?php
    $seccode = mt_rand(10000, 99999);
    session_start();
    $_SESSION['seccode'] = $seccode;
    header("Content-Type: image/png");
    $im = imagecreate(60, 18) or die('Error on create image!');
    $corfundo = imagecolorallocate($im, 255, 244, 234);
    $corfonte = imagecolorallocate($im, 255, 128, 0);
    $corlinha = imagecolorallocate($im, 255, 200, 150);
    $corborda = imagecolorallocate($im, 255, 128, 0);
    for($x=10; $x <= 100; $x+=10){
    imageline($im, $x, 0, $x, 50, $corlinha);
    }
    imageline($im, 0, 9, 100, 9, $corlinha);
    imageline($im, 0, 0, 0, 50, $corborda);
    imageline($im, 0, 0, 100, 0, $corborda);
    imageline($im, 0, 17, 100, 17, $corborda);
    imageline($im, 59, 0, 59, 17, $corborda);
    imagestring($im, 5, 8, 1, $seccode, $corfonte);
    imagepng($im);
    imagedestroy($im);
    ?>

    2. Create file "check.php":

    <?php
    session_start();
    if(isset($_POST['key']) AND isset($_SESSION['seccode']) AND $_POST['key']==$_SESSION['seccode']){
    echo 1;
    } else {
    echo 0;
    }
    ?>

    3. Create file "index.html":

    <html>
    <head><title>Capcha</title></head>
    <body>
    <form action="check.php" method="post">
    <img src="capcha.php" alt="" />
    <input type="text" name="key" />
    <input type="submit" value="send" />
    </form>
    </body>
    </html>
    {{ DiscussionBoard.errors[10622719].message }}

Trending Topics