縮短if語句

Question

我在代碼中執行此if語句，以便在檢查中的頁面上添加橫幅<div>。我怎樣才能更好地整理這些代碼？

$currentpage = $_SERVER['REQUEST_URI']; 
    if($currentpage=="/" || $currentpage=="/en" || $currentpage=="/pl" || $currentpage=="/cz" || $currentpage=="/index.php" || $currentpage=="/index.php/" || $currentpage=="" || 
     $currentpage=="/en/index.php" || $currentpage=="/en/index.php/" || 
     $currentpage=="/pl/index.php" || $currentpage=="/pl/index.php/" || 
     $currentpage=="/cz/index.php" || $currentpage=="/cz/index.php/" || 
     $currentpage=="/flyeuro/en/index.php/" || $currentpage=="/flyeuro/en/index.php" || 
     $currentpage=="/flyeuro/pl/index.php/" || $currentpage=="/flyeuro/pl/index.php" || 
     $currentpage=="/flyeuro/cz/index.php/" || $currentpage=="/flyeuro/cz/index.php") 
    { 

Answer 1

你可以這樣做：

<?php 
    // add your all URLs to an array 
    $urls = array("/en/index.php", "/en/index.php/", "/", "/en"); 

    if(in_array($currentpage, $urls)) { 
     echo "It exists"; 
    } else { 
     echo "It does not exist"; 
    } 
?>