openssl_random_pseudo_bytes
Function • Params and return types changed in PHP 8.0
Generate a pseudo-random string of bytes.
openssl_random_pseudo_bytes Function synopsis
openssl_random_pseudo_bytes(int $length, &$strong_result = null): stringParameters
$length
Typeint
The length of the desired string of bytes. Must be a positive integer less than or equal to 2147483647. PHP will
try to cast this parameter to a non-null integer to use it.
$strong_result
Passed by reference, OptionalDefault valuenull
If passed into the function, this will hold a bool value that determines
if the algorithm used was "cryptographically strong", e.g., safe for usage with GPG,
passwords, etc. true if it did, otherwise false
Note that the parameter
$strong_resultis passed by reference, and contains additional/updated context data that may be useful.
Return value
Typestring
Returns the generated string of bytes.
Changes to the openssl_random_pseudo_bytes Function
PHP 8.0
- Return type added:
string - Parameter type added for parameter #1 (
$length):int - Parameter name of parameter #2 changed:
$result_is_strongto$strong_result - Parameter default value added for position #2 (
$strong_result):null
- openssl_random_pseudo_bytes($length, &$result_is_strong)
+ openssl_random_pseudo_bytes(int $length, &$strong_result = null): stringopenssl_random_pseudo_bytes Function Availability
openssl_random_pseudo_bytes Function Availability| PHP Version | Availability |
|---|---|
| PHP 8.6Upcoming Release | Yes |
| PHP 8.5Supported (Latest) | Yes |
| PHP 8.4Supported | Yes |
| PHP 8.3Security-Fixes Only | Yes |
| PHP 8.2Security-Fixes Only | Yes |
| PHP 8.1Unsupported | 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 |