一段php随机代码,设定了range(1,30)但多次运行结果会显示出0,why?
代码:
$red1=range(1,30);
$sc1=array_rand($red1,8);
?>
foreach($sc1 as $v){
echo "$v ";
}
?>
$red2=range(1,30);
$sc1=array_rand($red2,8);
?>
foreach($sc1 as $v){
echo "$v ";
}
?>
$red1=range(1,30);
$sc1=array_rand($red1,8);
?>
foreach($sc1 as $v){
echo "$v ";
}
?>
$red2=range(1,30);
$sc1=array_rand($red2,8);
?>











