<?php $url = 'http://onestopweb.iteye.com/#onestopweb'; ?> <!DOCTYPE html> <html lang="zh"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <a href="http://demo.com/bridge.php?url=<?php echo $url;?>">One stop for internet focus</a> </body> </html>
<?php
//set mark
$flag = '0';
//Determine whether to pass parameters through GET
if (is_array($_GET) && count($_GET) > 0) {
/ / Determine whether there is a url parameter
if (isset($_GET['url'])) {
//Check if the parameter is empty
if(empty($_GET['url'])){
$flag = '3';
}else{
$url = $_GET['url'];
$flag = '1';
}
}else{
$flag = '2';
}
}
?>
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>URL redirection</title>
<?php
if($flag=='1'){
//PHP jump
Header("Location: $url");
//HTML jump
echo "<META HTTP-EQUIV='REFRESH' CONTENT='0; URL=$url'>";
//JS jump
echo "<SCRIPT LANGUAGE=\"JavaScript\">location.href='$url'</SCRIPT>";
}
?>
</head>
<body>
<?php
if($flag=='1'){ //Display page that cannot be redirected
echo 'Please copy and open'.$url;
}else if($flag=='2'){
echo 'The parameter is incorrect';
}else if($flag=='3'){
echo 'The parameter cannot be empty';
}else{ //Display page without GET
echo 'This page cannot be displayed';
}
?>
</body>
</html>
Effect picture: