Copy Code code as follows:
<?php
Range is to list 1 to 100 as an array
$numbers = range (1,100);
Shuffle the array order immediately
Shuffle ($numbers);
Array_slice a section of the array
$no = 6;
$result = Array_slice ($numbers, 0, $no);
for ($i =0; $i < $no; $i + +) {
echo $result [$i]. " <br> ";
}
Print_r ($result);
?>
Copy Code code as follows:
Range is to list 1 to 42 as an array
$numbers = range (1,42);
Shuffle the array order immediately
Shuffle ($numbers);
Array_slice a section of the array
$result = Array_slice ($numbers, 0, 3);
Print_r ($result);
Method 2
Copy Code code as follows:
<?php
$numbers = range (1,20);
Srand ((float) microtime () *1000000);
Shuffle ($numbers);
while (the list (, $number) = each ($numbers)) {
echo "$number";
}
?>
Method 3
With PHP, in 1-20 randomly generated 5 distinct values, how to do
Copy Code code as follows:
<?php
function Norand ($begin =0, $end =20, $limit =5) {
$rand _array=range ($begin, $end);
Shuffle ($rand _array);//Call ready-made array random order function
Return Array_slice ($rand _array,0, $limit);//$limit before intercept
}
Print_r (Norand ());
?>
Or not shuffle.
Copy Code code as follows:
<?php
$tmp =array ();
while (count ($tmp) <5) {
$tmp []=mt_rand (1,20);
$tmp =array_unique ($tmp);
}
Print join (', ', $tmp);
?>
