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PHP switches web page style skin through cookies

*文Original: 2017-12-26 17:56:471232browse

How to switch web page style through cookies in php? This article mainly introduces the method of using PHP to change skins through cookies, and uses cookies to store user selection information to achieve skin-changing effects. I hope it will be helpful to everyone.

The details are as follows:

saveStyleSheet.php page is as follows:

<?php 
function styleSheet($currentCookie){ 
  // Get Current Style Sheet 
  $currentCookie = $_COOKIE["StyleSheet"]; 
  // Get New cookie file name 
  switch($_GET[&#39;style&#39;]){ 
    case 1: 
      $value = &#39;style1.css&#39;; 
    break; 
    case 2: 
      $value = &#39;style2.css&#39;; 
    break; 
    case 3: 
      $value = &#39;style3.css&#39;; 
    break; 
    default: 
      $value = &#39;style.css&#39;; 
    break; 
  } 
  // If the user views this page, without using 
  // style=... then set cookie to the default 
  if(!isset($_GET[&#39;style&#39;])){ 
    $value = &#39;style.css&#39;; 
  } 
  // If the new value doesn&#39;t equal the old value allow cookie change 
  if(isset($value)||$currentCookie!=$value||isset($currentCookie)){ 
    setcookie("StyleSheet", $value, time()+600000); /* expires in 10,000 hours*/ 
    return $_COOKIE["StyleSheet"]; 
  }else{ 
    return $_COOKIE["StyleSheet"]; 
  } 
  if(isset($_GET[&#39;style&#39;])){ 
    header("Location: ".$_SERVER[&#39;HTTP_REFERER&#39;]); 
    exit; 
  } 
} 
?>

index.php page As follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>My Test Page</title>
<?php 
include("saveStyleSheet.php"); 
if(isset($_COOKIE["StyleSheet"])){ 
?> 
<link rel="stylesheet" type="text/css" href="stylesheets/ <?php echo styleSheet($_COOKIE["StyleSheet"]); ?> " />
<?php 
}else{ 
?> 
<link rel="stylesheet" type="text/css" href="stylesheets/style.css" />
<?php 
} 
?> 
</head>
<body>
<a href="saveStyleSheet.php?style=1">Style Sheet 1</a><br />
<a href="saveStyleSheet.php?style=2">Style Sheet 2</a><br />
<a href="saveStyleSheet.php?style=3">Style Sheet 3</a><br />
<a href="saveStyleSheet.php">Default Style Sheet</a>
</body>
</html>

Related recommendations:

PHP Advanced Tutorial: PHP Cookies

php Cookies operation class (with source code)

PHP Cookies are often used to identify users

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