create a sha256 hash from a string in php

To create a SHA256 hash from a string in PHP, you can use the hash function with the algorithm sha256. Here's an example code snippet:

main.php
$string = "hello world";
$hash = hash('sha256', $string);
echo $hash;
70 chars
4 lines

This will output the SHA256 hash of the string "hello world". You can replace "hello world" with any string that you want to generate a hash for.

It's worth noting that SHA256 is a one-way hashing algorithm, meaning that it's not possible to reverse-engineer the original string from the hash. This makes it a popular choice for securing sensitive data, such as passwords.