PHP循环随机数

Question

我想做一个随机数字（8位数）... 像..

1. 随机8位数字是0896 62479872
2. 随机8位数字是0896 80400616
3. 随机8位数字是0896 32287359
4. 随机8位数字是0896 43138996
5. 随机8位数字是0896 16297413

反复直到我得到1000个不同的数字

这是我的代码：

<?php

$digits_needed=8;

$random_number=''; // set up a blank string

$count=0;

while ( $count < $digits_needed ) {
    $random_digit = mt_rand(0, 9);

    $random_number .= $random_digit;
    $count++;
}

echo "The random $digits_needed digit number is 0896$random_number<br>";

?>

Answer 1

您可以获得1000个这样的8位数字

 $count = 1000;
    for ($i = 0; $i < $count; $i ++) {
        $random_digit = mt_rand(0, 99999999);

        echo "The random 8 digit number is 0896 $random_digit<br>";
    }

Answer 2

试试这个

function randStrGenDigit($len){
    $result = "";
    $chars = "0123456789";
    $charArray = str_split($chars);
    for($i = 0; $i < $len; $i++){
        $randItem = array_rand($charArray);
        $result .= "".$charArray[$randItem];
    }
    return $result;
}
$digits_needed=8;

$random_number=''; // set up a blank string

$count=0;

for($i=0;$i<1000;$i++) {
  echo "The random ".$digits_needed." digit number is 0896 ".$randStrGenDigit($digits_needed)."<br>";
}