Welfare Lottery Lucky Number Automatic Generator_PHP Tutorial

It is completely randomly designed using PHP. Every time it is refreshed, there will be different lucky numbers. Give it a try and don’t forget neo when you get rich~~~
for ($n=1;$n<= 5;$n++) {
echo "No.".$n."Note";
$string="";//Initialization string
for ($i=1;$i<=7 ;$i++) {
mt_srand((double)microtime()*1000000);//Add the time factor to the millionth of a second during execution as the random number seed
$random=mt_rand(1, 30);//Generate a random number between 1-30
if (eregi($random,$string)){//Check whether this number already exists
$i--;
continue;/ /Jump out of the loop and return to the starting point of judgment.
}
else{
$string=$string.",".$random;
echo $random," ";}
}
echo "
" ;
}
?>

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