Three ways to implement redirection in php

1. Use PHP’s header function

That is, use PHP’s header function. The function of the header function in PHP is to issue control instructions to the browser that should be passed through the WEB server specified by the HTTP protocol, such as declaring the type of return information ("Context-type: xxx/xxx"), the attributes of the page ("No cache", "Expire"), etc.

The method of using HTTP header information to redirect PHP to another page is as follows:

<?php 
    $url = "www.yaojinbu.com";  
    if (!empty($url))    
    {    
        header("HTTP/1.1 303 See Other"); //这条语句可以不写  
        header("Location: $url");  
    }    
?>

Note: There is a space after "Localtion:".

2. Use HTML meta tag

Use HTML tag, that is, use META REFRESH tag, for example:

<?php 
    if (!empty($url))  
    {  
        echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0;URL=$url\">";  
    }  
?>

3. Use JavaScript script function

For example:

<?php 
    if (isset($url))  
    {  
        echo "<SCRIPT LANGUAGE="JavaScript">";  
        echo "location.href=&#39;$url&#39;";  
        echo "</SCRIPT>";  
    }  
?>

or

<?php echo "<script>window.location =\"$url\";</script>";?>