PHP explains how to use the array sorting function in two ways

The input parameters of the array_reverse () reverse sorting function are an array, and an array with the same value but the opposite order is returned. & Lt ;? Php $ aarray (1, 2, 3, 4, 5); $ javasray_reverse ($ a); for ($ i0; $ I & lt; count ($ a); $ I) echo $ a [$ I].;? & Gt; result: 54321 shuf array_reverse () reverse sorting function
The input parameters of the function are an array, and an array with the same value but the opposite order is returned.
$ A = array (1, 2, 3, 4, 5 );
$ A = array_reverse ($ );
For ($ I = 0; $ I Echo $ a [$ I]. "";
?>
Result:
5 4 3 2 1

Shuffle () random sort code function
The function sorts the input arrays randomly. if the input array is successfully sorted, TRUE is returned. otherwise, FALSE is returned.
$ A = array (1, 2, 3, 4, 5 );
Shuffle ($ );
For ($ I = 0; $ I Echo $ a [$ I]. "";
Shuffle ($ );
Echo"
";
For ($ I = 0; $ I Echo $ a [$ I]. "";
?>
Results returned by two calls:
4 1 2 5 3
1 5 2 4 3