PHP code to generate 16-digit random numbers_PHP tutorial

PHP code to generate 16-digit random numbers

Sharing a PHP code to generate 16-digit random numbers, two methods for PHP to generate random numbers.

Method 1

The code is as follows:

　

　$a = mt_rand(10000000,99999999);

　$b = mt_rand(10000000,99999999);

echo $a.$b;

Method 2:

　

　$a = range(0,9);

for($i=0;$i<16;$i++){

　$b[] = array_rand($a);

　} // www.yuju100.com

var_dump(join("",$b));

　//Result string(16) "0179571910024734"

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