生成随机的imei

<?php
echo getIMEI();

function getIMEI() {// calculator IMEI


$r1=1000000+rand(0,8999999);

$r2=1000000+rand(0,8999999);

$input=$r1.$r2;

$a=$b=0;

for($i=0;$i<strlen($input);$i++){

$tt=intval($input[$i]);

if ($i % 2 == 0) {

$a=$a+$tt;

} else {

$temp = $tt * 2;

$b = $b + $temp / 10 + $temp % 10;

}

}

$last = ($a + $b) % 10;

if ($last == 0) {

$last = 0;

} else {

$last = 10 - $last;

}

return $input.$last;
}

?>