shuffle
PHP 4, PHP 5, PHP 7, PHP 8
shuffle - Shuffle an array
Manual
shuffle(
arrayarray ): bool
This function shuffles (randomizes the order of the elements in) an array. It uses a pseudo random number generator that is not suitable for cryptographic purposes.
Parameters
- array
-
The array.
Return Values
Returns true on success or false on failure.
Notes
Note:
This function assigns new keys to the elements in array. It will remove any existing keys that may have been assigned, rather than just reordering the keys.
Note:
Resets array's internal pointer to the first element.
Changelog
| Version | Description |
| 7.1.0 | The internal randomization algorithm has been changed to use the Mersenne Twister Random Number Generator instead of the libc rand function. |