PHP有效的http狀態

Question

在我的網站上，用戶可以在標準文本輸入字段中輸入HTTP狀態代碼。即200,400,404,403等等......

有沒有什麼辦法檢查HTTP狀態碼是否有效。例如，如果用戶輸入'123'，它將返回false。我目前無法想象或找到一種方法，而不是做一個大的醜陋的if或switch語句。

Answer 1

有沒有內置函數在PHP來實現這一點，但一查比if或switch語句更簡潔的方式可能是利用數組：

$validStatusCodes = [200, 201, 202, ...]; 

if (in_array($submittedStatusCode, $validStatusCodes)) { 
    // Ok 
} else { 
    // Not ok 
} 

Answer 2

根據w3.org的以下HTTP/1.1狀態代碼是有效的：

$status_code = array("100","101","200","201","202","203","204","205","206","300","301","302","303","304","305","306","307","400","401","402","403","404","405","406","407","408","409","410","411","412","413","414","415","416","417","500","501","502","503","504","505"); 

if(in_array("404", $status_code)){ 
    echo "valid"; 
    }else{ 
    echo "invalid"; 
    }