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()); }