PHP redirection implementation

1. Use HTTP header information

That is, use the php header function. The HEADER function in PHP is used to send control commands that should have been specified by the HTTP protocol to the browser through the WEB server, such as declaring the type of returned information ("Context-type: xxx/xxx "), page attributes (" No cache "," Expire "), and so on.

Use the HTTP header to redirect PHP to another page as follows:

 
 

  
  
<?Php 
  
  
$Url="Www.baidu.com";
  
  
If (! Empty ($ url ))
  
  
{
  
  
Header ("HTTP/1.1 303 See Other"); // This statement can be left empty
  
  
Header ("Location: $ url ");
  
  
}
  
  
?>
 
 

Note that "Localtion:" is followed by a space.

2. Mark PHP redirection with HTML

The HTML Tag is the REFRESH tag of META, for example:

 
 

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

3. Use scripts to implement PHP redirection

Example:

 
 

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

Or

 
 

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