Questions tagged as 'captcha'

Tagged questions
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Captcha Reader in Portuguese - Google noCaptcha reCaptcha

Hello, I'm implementing a captcha in my system, searching in google I got tutorials and I got by the google captcha that is mass and already comes with a spoken option to answer the captcha only that it is in English. I've tried searching and fou...
asked by 15.10.2015 / 22:04
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Google CAPTCHA in Java

I'm having trouble deploying Google's CAPTCHA. On the form page I've added the script and the div of the captcha: <head> <script src='https://www.google.com/recaptcha/api.js'></script> </head> <form...
asked by 18.02.2016 / 19:16
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Solve captchas using PHP

I searched Google in forums but found nothing satisfactory to my needs. I wonder if anyone knows a solution to solve captchas like this . > using PHP. I have basic knowledge about the Imagick and GD libraries, however I am looking for some libra...
asked by 04.05.2015 / 19:46
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Problem detecting captcha creation

I'm logging in to the system, but I got to a part that I can not think of as a logic to run. When the user tries to log in and miss the password 3 times, a captcha will appear on the login screen, this I was able to do, I'm having trouble checki...
asked by 29.06.2018 / 06:12
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Consultation NFE site http://www.nfe.fazenda.gov.br/portal/consultaRecaptcha.aspx?tipoConsulta=completa&tipoConteudo=XbSeqxE8pl8= [closed]

I used to feed my system with the data of the note informing the key of the note and the captcha, But with the move to reCaptcha it is no longer possible. How can I do this using WebService in PHP? Someone has some examples     
asked by 06.11.2017 / 20:43
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Theoretical tip on captcha and curl php

I've seen snippets of code where people use curl to get the captcha image, but is it possible to get the string that's in the image? As I understand it, the complexity of captcha depends on the code that each site uses to genera...
asked by 10.03.2017 / 15:35
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Implementing recaptcha in an Ionic app

I tried to use all the plugins that I found of verification (captcha) within my application. I'm using the Ionic framework. I would like to know if there is a plugin that works inside the html code in that case. Some of which I tried to imple...
asked by 13.07.2017 / 20:07
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Error in captcha

I have the following error in captcha:    Notice: Undefined index: captcha in C: \ xampp \ htdocs \ darknetwork \ index.php on> line 7 and also it is only returning me the same one if it gives an F5 in the page, the session_start();...
asked by 25.11.2017 / 09:22
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Error creating captcha image "The http: //localhost/project/index.php image contains errors and can not be displayed"

I am studying a book in which the code is the same and anyway it does not work, can anyone tell me what could be happening? <?php $pass_chars = ""; for($i = 0; $i < CAPTCHA_NUMCHARS; $i++){ $pass_chars .= chr(rand(97, 122)); //cria...
asked by 26.09.2017 / 21:25
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Callback from reCaptcha when user is wrong

Is there any google reCaptcha function that is activated when the user misses the options?     
asked by 25.07.2017 / 15:46