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$s = 100000;
$e = 999999;
for($i=0; $i<10000; $i++) {
echo rand($s, $e) . ' ' . rand($s, $e) . rand($s, $e) .'<br>';
}
<?php
$numbers = range(100000,999999);
srand((float)microtime()*1000000);
shuffle($numbers);
$i = 10000;
foreach ($numbers as $number) {
if ($i-- < 0) break;
echo "$number\r\n";
}
?>
$check = array();
for($i=0; $i<10000; $i++)
{
do
{
$rnum = rand(100000, 999999);
}
while (isset($check[$rnum]));
$check[$rnum] = 1;
}
print_r(array_keys($check));
$check = array();
for($i=0; $i<30000; $i++)
{
do
{
$rnum = rand(100000, 999999);
}
while (isset($check[$rnum]));
$check[$rnum] = 1;
}
print_r(array_keys($check));
for($i=0; $i<30000; $i++) { //产生3万个6位数
$r[] = rand(100000, 999999);
}
if(count(array_flip(array_count_values($r)))>1) {//检查是否有重复
exit('有重复, 重新执行');
}
foreach(array_chunk($r, 3) as $t) { //切割成3个一组
$res[] = array( $t[0], $t[1].$t[2]); //放到数组, 你根据你的需要进行保存
}
print_r($res);