ランダムな文字列を作成する関数
function generateRandomString($length, $characters = 'abcdefghijklmnopqrstuvwxyz') { $randomString = ''; $charactersLength = strlen($characters); for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, $charactersLength - 1)]; } return $randomString; } // 使用例 $length = 10; // 文字数を指定 $randomString = generateRandomString($length); echo $randomString;