代码片段仓库

function generateRandomString($length) {
  $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
  $result = '';
  for ($i = 0; $i < $length; $i++) {
    $result .= $characters[rand(0, strlen($characters) - 1)];
  }
  return $result;
}

function getClientIP() {
  if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $ip = $_SERVER['HTTP_CLIENT_IP'];
  } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
  } else {
    $ip = $_SERVER['REMOTE_ADDR'];
  }
  return $ip;
}

function deepCopy(obj) {
  return JSON.parse(JSON.stringify(obj));
}

function uniqueArray(arr) {
  return [...new Set(arr)];
}

function uniqueArray($arr) {
  return array_unique($arr);
}

function formatDate(date) {
  const y = date.getFullYear();
  const m = String(date.getMonth() + 1).padStart(2, '0');
  const d = String(date.getDate()).padStart(2, '0');
  return `(${}-${}-${})`;
}