We sometimes need to validate the integrity of given email id. The easiest way we have is just sending a verification mail to the given email id and asking the user to click on the link in that email. But other than that we have three more ways, that is, SMTP Email Validation, MX Record Check and Regular Expression&
Basic idea behind converting text to image is to avoid spammers grabbing important data like emails, phone numbers etc. This simple php script convert text to image dynamically, Just have a glance at this script.
This small php snippet will help you to find the difference between two given dates
Reloading the page after form submission in POST method, browser will always display a warning whether it can resend same data to server or not. For average user, this information is bit technical and it might confuse him.
Hacking is a very broad topic to discuss. Here I'm going to discuss about one kind of attack that is mainly targeted on website's index files
When retrieving data from mysql tables sometimes we might have got this error: mysql_fetch_array() expects parameter 1 to be resource. This warning tells us, we are passing an empty result variable for processing.