Define validating parser
In a shared-hosting environment, its configuration might restrict what you can do.In order to retain a scrap of sanity, we’re going to focus on just one version of PHP: PHP 5.5.9-1ubuntu4.2.The problem is that out of five tutorials, you have a good chance of finding five totally different ways of doing something. Do any of the other ways have subtle bugs or gotchas?It’s really hard to find out, and you’ll be bouncing around the internet trying to pin down the right answer. Back to top PHP is a complex language that has suffered years of twists, bends, stretches, and hacks. Each version has its own unique features, warts, and quirks, and it’s hard to keep track of what version has what problems. Drop me a line if you think I can help you with something, or with suggestions or corrections to this document.PHP provides a built-in password hashing library that uses the bcrypt algorithm, currently considered the best algorithm for password hashing.The built-in PHP password hashing library isn’t available in the version of PHP installed in 12.04.
Because of its long history, you’ll find lots of tutorials on how to do basic things like password hashing and database access.
Hashing is the standard way of protecting a user’s password before it’s stored in a database.
Many common hashing algorithms like md5 and even sha1 are unsafe for storing passwords, because hackers can easily crack passwords hashed using those algorithms.
You might find that some of these solutions work on different or older versions of PHP.
If that’s the case, A lot has changed in the PHP world in the years between Ubuntu 12.04 and 14.04.