(PHP 7 >= 7.4.0)
password_algos — Get available password hashing algorithm IDs
password_algos ( ) : array
Returns a complete list of all registered password hashing algorithm IDs as an array of strings.
This function has no parameters.
Returns the available password hashing algorithm IDs.
Example #1 Basic password() usage
<?php print_r(password_algos()); ?>
The above example will output something similar to:
Array
(
[0] => 2y
[1] => argon2i
[2] => argon2id
)
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https://www.php.net/manual/en/function.password-algos.php