Captcha in php

• Jeetendra Singh
• 28 Jul, 2016
• • Javascript ,
  • Php tutorials

CREATE OWN CAPTCHA FOR YOUR WEBSITE

Hi Geeks, I am sharing you a program forcreating a captcha script using php and javascript. Following are the simple steps to create captcha in php Step 1: Create a php script named ‘captcha.php’ with following code that generate and return a captcha image.Step 2: Now create a captcha.js file and put following code in the file. function reload() { img = document.getElementById("capt"); img.src="captcha.php"; } $(document).ready(function(){ var htm='  '; $('#custom_captcha').html(htm);//set the captcha data in element having id > custom_captcha . you can change as your div/Element id }); Step 3: Now we need to create a Placeholder Element inside the form as following:Step 4: Now after submitting you from validate the captcha was right or not. So in your form submit action use following code.Note 1: In which page/form you are using the capcha , there should be session start in top of the file as following:and also include the js file in your php page head section. jquery should be available before the captcha.js inclusion as following:Note 2: PHP GD LIBRARY SHOULD BE INSTALLED ON YOUR SERVER.