public static function unique($prefix = 'unique')
{
$prefix = rtrim(trim($prefix), '-');
$random = mt_rand(10000000, 99999999);
$result = $random;
if ($prefix) {
$result = $prefix . '-' . $random;
}
return $result;
}
public function testUnique() { is(15, strlen(Str::unique())); is(8, strlen(Str::unique(null))); is(10, strlen(Str::unique('t-'))); isNotSame(Str::unique(), Str::unique()); }