$_SESSION['captcha'] = $code; imagestring($image, 5, 30, 8, $code, $textColor); imagepng($image); imagedestroy($image); ?> 这个PHP文件将生成一个包含随机字母的验证码图片,并将其存储在会话变量中,请注意,您需要将此文件保存为名为“captcha.php”的文件,并确保服务器支持PHP。 3、验证验证码(...
$_SESSION['authcode'] = $captch_code; //在图片上增加点干扰元素 for ($i = 0; $i < 200; $i++) { $pointcolor = imagecolorallocate($image, rand(50, 200), rand(50, 200), rand(50, 200)); imagesetpixel($image, rand(1, 99), rand(1, 29), $pointcolor); } //在图片上增加...
$captchaCode = ''; for ($i = 0; $i < 6; $i++) { $captchaCode .= $characters[rand(0, strlen($characters) - 1)]; } // 将验证码保存到会话中 $_SESSION['captcha'] = $captchaCode; // 添加文本到图像 $fontsize = 5; for ($i = 0; $i < strlen($captchaCode); $i...
/label><inputtype="password"class="form-control"id="pwd"placeholder="Enter password"name="pswd"></div><divclass="mb-3"><labelfor="pwd"class="fw-bold">验证码:</label><divclass="row"><divclass="col-sm-10"><inputtype="text"name="maincaptcha"readonlyclass="form-control"id="mainCap...
code: code, mobileKey: mobileKey }; $.post('/sys/captcha/validateImageCode.do', param, function(data) { console.log('data:', data); getTicketImg(); }); }); }); /** * 获取图片验证码 */ function getTicketImg() { var ticket_key = Math.floor(Math.random() * 1000000); ...
即把彩色图片转化为黑白图片,忽略掉背景色的影响,从而增大验证码识别率。...'geetest_radar_tip'))) return button def get_position(self): """ 获取验证码位置...return slider def get_geetest_image(self, name='captcha.png'): """ 获取验证码图片...:return: 图片对象 """ top, bottom, left,...
alert('Thanks for message') } else { alert('An error occured') } }); });; }); }); </script> html 表单字段的名称是“email”、“vyber”、“sprava” 表单.php <?php $mail;$comment;$captcha; $mail = filter_input(INPUT_POST, 'mail', FILTER_VALIDATE_EMAIL); $comment = filter_inp...
onto your form template: name, email, file upload, radio buttons, drop-down menus, text areas, signature fields, and more. You can add required fields and CAPTCHA protection to make sure only adequate responses are accepted; even integrate payment processing without writing any additional code. ...
("ipaddress").innerHTML, challenge: Recaptcha.get_challenge(), response: Recaptcha.get_response() }, success: function (data) { if (data == false) { valiCAPTCHA = false; ALERT("The CAPTCHA code you entered is invalid. Please try again."); Recaptcha.reload(); } else { valiCAP...
Many of you asked for a tutorial on implementing a Captcha to the Bootstrap forms; here it is. I chose a popular Captcha solution, Google's ReCaptcha, for verification. In the tutorial, I will be using a working HTML contact form from my previous tutorial. Our form will be using HTML5...