Comparison between php header and asp redirect

Source: Internet
Author: User
Compare the php header with the redirect in asp. Read the php header and the redirect in asp, and use response to implement redirection in asp. redirect function: Usage example: response. redirect .. /test. aspphp also has a similar function: header Usage example: header (response is used to implement redirection in loca asp. redirect function:
Response. redirect ".../test. asp"
Php also has similar functions: header
Header ("location: ../test. php ");
However, the two are different.
The redirect function of asp can work after the header file is sent to the customer.
For example

<% Response. redirect ".../test. asp" %>

The following code in php reports an error:

Header ("location: ../test. php ");

You can only do this:
Header ("location: ../test. php ");
That is, the header function cannot send any data to the customer.

Let's look at the following example:

Response. redirect ".../a. asp"
Response. redirect ".../B. asp"

The result is to redirect the. asp file.
What about php?
Header ("location: ../a. php ");
Header ("location: ../B. php ");

We found that it redirects B. php.
It turns out that after redirect is executed in asp, subsequent code will not be executed.
Php continues to execute the following code after executing the header.
In this regard, the header redirection in php is not as good as the redirection in asp. sometimes, after we want to redirect, we cannot execute the following code:
Generally, we use
If (...)
Header ("...");
However, we can simply use the following method:
If (...)
{Header ("..."); break ;}

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