password_get_info

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

password_get_info — Returns information about the given hash

Descrizione

password_get_info(string $hash): array

When passed in a valid hash created by an algorithm supported by password_hash(), this function will return an array of information about that hash.

Elenco dei parametri

hash: Un hash creato da password_hash().

Valori restituiti

Returns an associative array with three elements:

algo, which will match a password algorithm constant
algoName, which has the human readable name of the algorithm
options, which includes the options provided when calling password_hash()

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User Contributed Notes 1 note

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cbungholio at gmail dot com ¶

8 years ago

If you're curious to use this method to determine if there is someway to evaluate if a given string is NOT a password_hash() value...<?php// Our password.. the kind of thing and idiot would have on his luggage:$password_plaintext = "12345";// Hash it up, fuzzball!$password_hash = password_hash( $password_plaintext, PASSWORD_DEFAULT, [ 'cost' => 11 ] );// What do we get?print_r( password_get_info( $password_hash ) );/* returns:Array (     [algo] => 1     [algoName] => bcrypt  // Your server's default.    [options] => Array ( [cost] => 11 ) )*/// What about if it's un-hashed?...print_r( password_get_info( $password_plaintext ) );/* returns:Array (     [algo] => 0     [algoName] => unknown     [options] => Array ( ) ) */?>... Looks like it's up to each of us to personally decide if it's safe to compare against the final returned array.

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