解決方法：直接上代碼

需要提前安裝擴展

composer require predis/predis

/** * API訪問頻率限制簡單處理 */ 
require_once 'vendor/autoload.php'; 
$redis = new PredisClient ( 'tcp://127.0.0.1:6379' ); 
// 測試key 
$clientKey = "api_count:client_id:" . date ( 'YmdHi' ); // 
限制時間為1分鐘 $seconds = '60'; 
// 限制次數(shù)為20次 
$count = 20; 
//不存在key 
if (! $redis--->get ( $clientKey )) {
    $redis->set ( $clientKey, 0 );
    $redis->expire ( $clientKey, $seconds );
}

//訪問頻率監(jiān)控
$accessCount = $redis->incr ( $clientKey );
if ($accessCount > $count) {
    echo "[WARING]:訪問超過限制次數(shù)";
} else {
    $remainingTime = $redis->ttl ( $clientKey );
    echo "{$clientKey}  剩余時間:{$remainingTime}s  訪問次數(shù)為:{$accessCount}";
}