crypt

Function • Params and return types changed in PHP 8.0

One-way string hashing.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5

crypt Function synopsis

crypt(string $string, string $salt): string

Parameters

$string

Typestring

The string to be hashed.

$salt

Typestring

A salt string to base the hashing on. If not provided, the behaviour is defined by the algorithm implementation and can lead to unexpected results.

Return value

Typestring

Returns the hashed string or a string that is shorter than 13 characters and is guaranteed to differ from the salt on failure.

Changes to the crypt Function

PHP 8.0

  • Return type added: string
  • Parameter name of parameter #1 changed: $str to $string
  • Parameter type added for parameter #1 ($string): string
  • Parameter type added for parameter #2 ($salt): string
- crypt($str, $salt)
+ crypt(string $string, string $salt): string

crypt Function Availability

PHP VersionAvailability
PHP 8.5Future Release Yes
PHP 8.4Upcoming Release Yes
PHP 8.3Supported (Latest) Yes
PHP 8.2Supported Yes
PHP 8.1Security-Fixes Only Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes