Support PHP Version: PHP 7.1, PHP 7.2, PHP 7.3, PHP 7.4, PHP 8.0, PHP 8.1, PHP 8.2, PHP 8.3 With Latest All Version Support.
In PHP, the `hash()` function is used to generate a hash value (message digest) using various algorithms such as MD5, SHA-1, SHA-256, etc. PHP 8.2 continues to support this function. Here’s how you can use it with an example:
<?php
// Example 1: Generating MD5 hash
$data = "Hello, World!";
$md5_hash = hash('md5', $data);
echo "MD5 hash of '$data': $md5_hash\n";
// Example 2: Generating SHA-256 hash
$data = "Hello, World!";
$sha256_hash = hash('sha256', $data);
echo "SHA-256 hash of '$data': $sha256_hash\n";
?>
In these examples:
1. We use the `hash()` function to generate hash values for the string “Hello, World!”.
2. In the first example, we generate an MD5 hash using the `’md5’` algorithm.
3. In the second example, we generate a SHA-256 hash using the `’sha256’` algorithm.
You can replace `’md5’` and `’sha256’` with other supported hash algorithms as needed. Additionally, you can hash files by passing the filename as the second argument instead of a string.